taxonID	type	description	language	source
11038800FFE1FF90FF41342969870E31.taxon	description	(Figs 3 – 4)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE1FF90FF41342969870E31.taxon	description	New records: Chiang Mai, Doi Pui, 1400 m, EtOH trap / FIT, various dates from 27. ix. 2004 – 25. iv. 2005 (W. Puranasakul) (48); as previous except: ex chestnut, xi. 2004 (2); Doi Phahompok NP, Kewlom 1 / montane forest, 20 ° 3.549 ' N, 99 ° 8.552 ' E, 2174 m, MT, 28. ii – 7. iii. 2008 (Seesom, K.) (1); Nan, Doi Phu Kha NP, Office 14, 19 ° 12.488 ' N, 101 ° 4.907 ' E, 1375 m, Pan trap, 4 – 5. xii. 2007 (Charoen & Nikom) (2). Other distribution: China (Xizang). (1) Biology: The species was recorded from Castanopsis sp. (Fagaceae) by Wood and Yin (1986). In Thailand, it occurs above 1300 m in the hill evergreen forest where Fagaceae are dominant, and has been collected from ‘ chestnut’ (probably Castanopsis sp.). The habits of the species have not been described, but as a member of the subtribe Corthylina, it is most probably an ambrosia beetle (Wood 2007).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE1FF90FF41304A69CF0A56.taxon	description	(Figs 5 – 6)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE1FF90FF41304A69CF0A56.taxon	description	New records: Chiang Mai, Doi Inthanon NP, summit marsh, 18 ° 35.361 ' N, 98 ° 29.157 ' E, 2500 m, MT, 2 – 8. vii., 6 – 13. ix. 2006 (Y. Areeluck) (4); as previous except: checkpoint 2, 18 ° 31.559 ' N, 98 ° 29.941 ' E, 1700 m, 22. vii – 2. viii. 2006 (1). Other distribution: Myanmar. (2) Taxonomy: As noted by Beaver and Gebhardt (2004), Hyorrhynchus tuberopectus Huang & Yin is likely to be a synonym, but type material of that species is not currently available for examination. Biology: Not described. The gallery system is probably similar to that of Pseudohyorrhynchus wadai Murayama (Beaver & Gebhardt 2004), with a radial gallery leading to longitudinal branches up and down the stem in which the larvae feed on ambrosia fungus growing on the walls.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE1FF90FF413660682609B9.taxon	description	New record: Chiang Mai, Queen Sirikit Botanical Garden, 18 o 53 ' N, 98 o 51 ' E, 685 m, semi-evergreen forest, FIT, 13 – 17. xi. 2006 (J. Phasuk) (1). Other distribution: Vietnam. Previously known only from the holotype. (2) Biology: Unknown. As a member of the subtribe Corthylina, it is assumed to be an ambrosia beetle. Illustrations: P, D (Petrov et al. 2007)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE1FF91FF413281682A0FA6.taxon	description	New records: Nakhon Sri Thammarat, Namtok Yong NP, TV aerial, 8 ° 14.262 ' N, 99 ° 48.289 ' E, 966 m, MT, 7 – 14. vii. 2008 (Paiboon) (1); as previous except: Chang Klang Distr., 08 ° 20 ' 33.8 '' N 99 ° 37.4 ' 48.6 '' E, 62 m, durian plantation, EtOH trap, 1. x. 2010 (W. Sittichaya) (1). Other distribution: From India and Sri Lanka to Japan and Taiwan in the North, and Malaysia and Indonesia in the South. Presumably introduced to Australia and Fiji, but established in both countries. (4) Biology: The biology and gallery system were described by Beaver (1984). The species is polyphagous, and nearly always breeds in old, dry twigs from 0.7 – 3.0 cm diameter. The gallery system consists of a radial gallery, and usually two longitudinal branches running up and down the stem. The eggs are laid in separate niches, but the larvae develop and feed on the ambrosia fungus growing in the parental gallery. As in the Xyleborini, only one or two males are produced in each gallery. They are smaller than the females, and are presumed to mate with their sisters in the parental gallery. Illustrations: D (Maiti & Saha 2009).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE0FF91FF41300668EB0BEE.taxon	description	New records: Chiang Mai, Doi Inthanon NP, Kew Maepan Trail, 18 ° 33.162 ' N, 98 ° 28.81 ' E, 2200 m, MT, various dates from 2 – 8. vii. 2006 to 16 – 23. iii. 2007 (Y. Areeluck) (16); as previous except: summit forest, 8 ° 35.361 ' N, 98 ° 29.157 ' E, 2500 m, MT, various dates from 2. vii. 2006 – 6. ix. 2006, 24. xi. 2006 – 26. i. 2007, 15 – 22. iv. 2007 (Y. Areeluck) (52); Doi Phahompok NP, Kewlom 1, 20 ° 3.549 ' N, 99 ° 8.552 ' E, 2174 m, montane forest, MT, 14 – 21. ii. 2008 (Seesom K.) (1). Other distribution: Taiwan. The species also occurs in Nepal (R. A. Beaver, unpublished record). (1) Biology: Beaver and Gebhardt (2006) describe the gallery system, female mycangia and ambrosia fungus (Ambrosiella sp.). The only recorded host is Cyclobalanopsis morii (Fagaceae) in Taiwan. Illustrations: P (Beaver & Gebhardt 2006).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE0FF91FF4137D16EEB096E.taxon	description	(Figs 7 – 8)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE0FF91FF4137D16EEB096E.taxon	description	New record: Surat Thani, Khao Sok NP, ex cut liane, ca 3 cm diam., 23. ii. 2012 (R. A. Beaver) (3). Other distribution: Malaysia (W.). (3) Biology: Collected from a small cut pole (2.0 – 2.5 cm diameter) (Beaver & Browne 1979), and from lianes (Beaver & Gebhardt 2004; new record above). Beaver and Browne (1979) noted that each gallery contained only a single adult, and the entrance was largely blocked by frass, leaving only a small central hole.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFE0FF8EFF41321868960C60.taxon	description	Other distribution: Malaysia (E. and W.) (3) Taxonomy: Beaver and Gebhardt (2006) showed that this is a good species, and not a synonym of Scolytoplatypus eutomoides Blandford (contra Schedl 1975). Keys to males and females of Oriental species described up to 2006 are provided by Beaver & Gebhardt (2006). Biology: Browne (1961 a) describes the biology and gallery system, and suggests a fixed host association with trees of the family Dipterocarpaceae. However, most species of Scolytoplatypus attack a wide range of host families, and the association needs to be confirmed.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFFFF8EFF41349768EB0EC7.taxon	description	(Figs 9 – 10)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFFFF8EFF41349768EB0EC7.taxon	description	New records: More than 270 specimens collected in all regions of the country. Other distribution: Northeast India, Bangladesh, Vietnam, Malaysia (E. and W.), Indonesia (Java). The species also occurs in China (Yunnan) (R. A. Beaver, unpublished record). (4) Taxonomy: Beaver and Gebhardt (2006) note that Schedl (1975) confused six species under the name S. eutomoides. S. brahma is a good species, and not a synonym of S. eutomoides. Biology: The species is polyphagous, attacking a wide range of host trees in many families (Beaver & Gebhardt 2006). Illustrations: P (Beaver & Gebhardt 2006).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFFFF8EFF4136F268EB08B6.taxon	description	New record: Chiang Mai, Doi Pui, 1400 m, 24. vii. 2012 (Sunisa S.) (1). Other distribution: Philippines. (3) Taxonomy: This species is closely related to Scolytoplatypus parvus Sampson (see below), but lacks the patch of conspicuous white hairs, and uniseriate denticles on interstriae 1 – 3 on the male elytral declivity. The single male Thai specimen has been compared with a male paratype of S. curviciliosus. Biology: Not described. The type series was collected at 1700 m in the Philippines, and this is probably a montane species. Illustrations: P (Beaver & Gebhardt 2006).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFFFF8EFF4130E068EB0A67.taxon	description	New records: Nakhon Sri Thammarat, Namtok Yong NP, Road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, various dates from 8 – 15. vii. 2008 to 19 – 26. xi. 2008 (Samnaokan, S.) (6). Other distribution: Indonesia (Java, Kalimantan, Sumatra), Malaysia (E. and W.), Philippines. The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (3) Biology: Browne (1961 a) briefly describes the biology of this polyphagous species. Illustrations: P (Beaver & Gebhardt 2006).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFFFF8FFF413292687A0F65.taxon	description	Other distribution: India (W. Bengal). (2) Taxonomy: In their description of the male, Maiti and Saha (2009) fail to mention the prosternum, which is a valuable taxonomic character in Scolytoplatypus (Beaver & Gebhardt 2006). It is broadly flattened posteriorly, but tapers anteriorly to a sharp point which is more strongly sclerotised. The tapering part bears long, backwardly pointing hairs, and at the tip on each side, a small tuft of short, forwardly pointing hairs. Maiti and Saha (2009) do not mention also the extremely long tufts of hairs on the anterior coxae. These are longer than in any other species of Scolytoplatypus known to us, the longest hairs extending two-thirds of the body length. Biology: Maiti and Saha (2009) list three host species in three different families (Lauraceae, Rutaceae, Symplocaceae). Given the localities listed by Maiti & Saha (2009), and above, probably a montane species. Illustrations: D (Maiti & Saha 2009).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFEFF8FFF41378D69F40937.taxon	description	New records: Nakhon Sri Thammarat, Namtok Yong NP, Road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, 15 – 22. vii. 2008 (Samnaokan, S.) (1); Nan, Doi Phu Kha NP, Office 15, 19 ° 12.133 ' N, 101 ° 4.756 ' E, 1310 m, MT, 1 – 8. xii. 2007 (Charoen & Nikom) (1); as previous except: Office 14, 19 ° 12.488 ' N, 101 ° 4.907 ' E, 1375 m, pan trap, 3 – 4. xii. 2007 (Charoen & Nikom) (3); Other distribution: India (Uttar Pradesh, West Bengal). (2) Biology: Recorded from five different host tree families, and evidently polyphagous. Illustrations: P (Beaver & Gebhardt 2006); D (Maiti & Saha 2009).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFEFF8FFF41316268EB0A8E.taxon	description	New records: Chiang Mai, Doi Chiangdao NP, Water reservoir, 19 ° 24.419 ' N, 98 ° 55.237 ' E, 549 m, MT, 7 – 14. viii. 2007 (S. Jugsu & A. Watwanich) (1); Chumphon, Sawi distr., 10 ° 19 ' 07.7 '' N, 99 ° 01 ' 40.2 '' E, 103 m, durian plantation, EtOH trap, various dates from 1. x. 2009 – 1. i. 2010 (W. Sittichaya) (7); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, EtOH trap, 01. x. 2009 (W. Sittichaya) (1); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, 1. x. 2009 (2), 1. ii. 2010 (1) (W. Sittichaya); Namtok Yong NP, road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, 17 – 24. ix. 2008 (Charnarwut C.) (1); as previous except: Klong Jang waterfall, 8 ° 16.283 ' N, 99 ° 38.702 ' E, 154 m, MT, 2 – 9. ii. 2009 (Samnaokan S.) (2); Khao Nan NP, sifting trop. rain forest litter, 24. iv. 2006 (A. Hasalem) (1); Phetchabun, Thung Salaeng Luang NP, Gang Wang Nam Yen, 16 ° 36.284 ' N, 100 ° 53.128 ' E, 749 m, pine forest, litter sample, 15 – 18. vi. 2007 (Pongpitak & Sathit) (1); Phetchaburi, Kaeng Krachan NP, Pa La-U / bus parking, 12 ° 32.125 ' N, 99 ° 28.283 ' E, MT, 4 – 11. vii. 2008 (Akaradate & Thongbai) (1); Surat Thani, Khao Sok NP, Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, MT, 24 – 31. viii. 2008 (Buathong, S.) (2); as previous except: Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 122 m, MT, 23 – 30. xii. 2008 (Pongphan) (2). Other distribution: Brunei Darussalam, India (W. Bengal), Malaysia (E. and W.), Myanmar. The species also occurs in China (Yunnan) (R. A. Beaver unpublished records). (4) Biology: A polyphagous species attacking stems from 3 – 10 cm diameter (Browne 1961 a). Illustrations: P (Beaver & Gebhardt 2006).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFCFF8DFF4130116ECD0A13.taxon	description	Other distribution: Malaysia (E. and W.). The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (3) Taxonomy: Alonso-Zarazaga and Lyal (2009) point out that the generic name, Amasa Lea, is female rather than male (contra Wood & Bright 1992, Bright & Skidmore 1997, 2002). Morphological species limits are often indistinct in Amasa, and this has led to conflicting interpretations and synonyms (see below). Biology: All host records are from the genus Eugenia (Myrtaceae), and the species appears to have a fixed host association with this family (Browne 1961 a). The gallery system has a radial, unbranched entrance tunnel leading to a single, large, more or less oblong chamber in the longitudinal plane (Browne 1961 a).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFCFF8DFF41359B69F40F5F.taxon	description	New records: More than 100 specimens, collected primarily by participants in the TIGER project in Chiang Mai in Doi Inthanon NP (from 1200 – 2500 m), Doi Pha Hom Pak NP (1450 and 2175 m), and in Nan (Doi Phu Kha NP (from 1310 – 1375 m). Other distribution: India (Assam, Uttar Pradesh, W. Bengal), Myanmar, Nepal, Taiwan, Vietnam. (2) Biology: The biology and gallery system are described by Beeson (1961), who notes that brood size can reach 70 – 80 individuals. The species is polyphagous (Beaver & Gebhardt 2006). It appears to be primarily a montane species, but can occur at lower altitudes. Illustrations: P (Beaver & Gebhardt 2006); D (Maiti & Saha 2009).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFCFF8DFF41378A69F40972.taxon	description	New records: Chiang Mai, Doi Phahompok NP, 20 o 7.644 ' N, 99 o 8.89 ' E, 2000 m, at light, 24 – 30. vii. 2006 (H. Mendel & M. V. L. Barclay) (20); as previous except: 20 o 7.192 ' N, 99 o 7.811 ' E, small pines (15); Kewlom 1 / montane forest, 20 ° 3.549 ' N, 99 ° 8.552 ' E, 2174 m, MT, 7 – 28. ii. 2008 (Seesom. K.) (7); Chiang Rai, Mae Chan Distr., Huai Kang Pla waterfall, 20 o 05 ' 15.7 '' N, 99 o 46 ' 47.9 '' E, 538 m, sweep net, beside stream, 28. vi. 2012 (W. Srisuka et al.) (1) Other distribution: China, India, Malaysia (W.), Nepal, Pakistan, Taiwan, Vietnam. The species also occurs in Laos (R. A. Beaver, unpublished record). (2) Biology: A polyphagous species attacking both conifers and angiosperms (Beaver & Gebhardt 2006). Illustrations: P (Beaver & Gebhardt 2006); D (Maiti & Saha 2009).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFCFF8AFF4132466F450FAD.taxon	description	Other distribution: India (Assam), Indonesia (Java), Malaysia (W.). (4) Taxonomy: Wood (1989) considered A. glabra to be a synonym of Amasa schlichii (Stebbing), but we prefer to retain it for the present as a separate species. A. glabra can be distinguished from A. schlichii by the following characters (A. glabra characters listed first): Pronotal disc reticulate between punctures dorsally, appearing rather dull vs pronotal disc smooth and shining between punctures dorsally; elytral disc with strong, rather coarse strial punctures, interstrial punctures a little smaller vs elytral disc with smaller strial punctures, approximately equal in size to the interstrial punctures of A. glabra, the interstrial punctures much finer; upper part of elytral declivity weakly impressed, sutural interstriae gradually and weakly raised from near upper margin to apex, bearing an irregular double row of small tubercles vs upper part of elytral declivity strongly impressed, sutural interstriae strongly raised in apical half, with larger tubercles than A. glabra, usually in a single row. Further studies of this group of species need to be made. Biology: Recorded from Dryobalanops longifolia (Dipterocarpaceae) in Malaysia (Schedl 1971).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFBFF8AFF4137DB695708AA.taxon	description	New records: Chaiyaphum, Phu Khieo WS, ex Shorea branch, 18. vii. 2005 (J. Hulcr et al.) (1); Tat Tone NP, Lum Pa Tao head water, 15 ° 58.486 ' N, 102 ° 2.239 ' E, 270 m, dry evergreen [forest], pan trap, 6 – 7. ii. 2007 (T. Jaruphan & O. Budsawong) (1); Chanthaburi, Khao Khitchakut NP, 500 m N / Prabaht Unit, 12 ° 48.98 ' N, 102 ° 9.14 ' E, 12 m, MT, 22 – 29. ix. 2008 (Suthida & Charoenchai) (1); as previous except: 200 m from sala, Klong Chang Sae waterfall to Khao Prabaht, 12 ° 49.28 ' N, 102 ° 9.29 ' E, 285 m, 30. x – 6. xi. 2008 (2); Chiang Mai, Doi Inthanon NP, 900 m, 28. vii. 2004 (A. I. Cognato) (1); Khun Khan NP, vii. 2005 (J. Hulcr et al.) (1); Nakhon Nayok, Khao Yai NP, near reservoir, 14 ° 27.119 ' N, 101 ° 21.482 ' E, 699 m, moist evergreen forest, MT, 19 – 26. xi. 2006 (W. Sookkho) (1); as previous except: Trail near Training Center 2, 14 ° 24.482 ' N, 101 ° 22.388 ' E, 755 m, evergreen forest, MT, 26. ii – 5. iii. 2007 (1). Other distribution: Indonesia (Java, Sumatra), New Guinea, Sri Lanka. (4) Taxonomy: This species is very similar to Amasa versicolor (Sampson) (see below), and perhaps should be synonymised with that species. We keep it separate pending further studies. Biology: Recorded by Kalshoven (1959) from five genera in five different families. Evidently polyphagous. Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFBFF8BFF4130DD69500CF0.taxon	description	New records: Chiang Mai, Doi Suthep, 7. vii. 2002 (R. A. Beaver, K. Koivisto) (3); Kanchanaburi, 14 o 04 ' N, 98 o 67 ' E, 18. vii. 2002 (A. Cognato) (5); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, 1. iii. 2010 (1), 1. iv. 2010 (2), 1. xi. 2011 (1), 1. v. 2011 (3), 1. vi. 2011 (4) (W. Sittichaya). Other distribution: India (Assam, W. Bengal), Indonesia (Java), Malaysia (W.). (4) Taxonomy: We note that the original spelling of the specific name by Stebbing (1914) was schlichii, although the species has generally been referred to in later publications as schlichi (e. g. Beeson 1930, 1961, Wood & Bright 1992, Maiti & Saha 2004, Hulcr & Cognato 2013). Hulcr and Cognato (2013) have synonymised Amasa striatotruncata (Schedl) with A. schlichii. As with A. glabra (see above), we prefer to keep the species separate pending further studies, and have not included the distribution of A. striatotruncata in the list above. A. striatotruncata can be distinguished from A. schlichii by the following characters (A. striatotruncata c haracters listed first): elytral declivity weakly convex, the upper part not impressed, sutural interstriae very slightly raised close to the apex, bearing a few small tubercles, interstriae 2 – 3 on declivity without tubercles, smooth and shining vs elytral declivity more strongly convex, sutural interstriae strongly raised in apical half of declivity and bearing much stronger tubercles; interstriae 2 – 3 on declivity usually granulate near apex and rugulose. Biology: Browne (1961 a, as Xyleborus uniseriatus Eggers) suggests a strong preference for Fagaceae, but the species seems to be polyphagous (Beeson 1961, Beaver & Browne 1979). Illustrations: P (Hulcr 2013); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFAFF8BFF4137276F080EB8.taxon	description	New record: Nakhon Sri Thammarat, Namtok Yong NP, Klong Jang waterfall, 8 ° 16.283 ' N, 99 ° 38.702 ' E, 154 m, MT, 2 – 9. ii. 2009 (Samnaokan, S.) (1). Other distribution: Federated States of Micronesia (Pohnpei Is.), India (Bengal), Indonesia (Java), Malaysia (E. and W.), Myanmar. (4) Biology: A polyphagous species (Browne 1961 a, Beaver & Browne 1979). The gallery system has a radial tunnel leading to a large, elongate brood chamber. Brood size may exceed 50 individuals (Browne 1961 a).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFAFF8BFF4136EF6E890BCD.taxon	description	Other distribution: China, India, Indonesia (Java, Sumatra), Japan (Ryukyu Is.), Malaysia (W.), Sri Lanka, Taiwan. The species also occurs in Australia (presumably introduced), Brunei Darussalam, Indonesia (Sulawesi) and Nepal (R. A. Beaver, unpublished records). (4) Biology: Polyphagous (Beaver & Liu 2010). In southern Thailand, it occurs in low numbers in durian-based agricultural and nearby forested areas, more abundantly during the rainy season. The gallery system and biology are described by Browne (1961 a). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013, PaDIL 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFFAFF88FF4133F26F790C18.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, various dates from 1. iii. 2010 – 30. vi. 2011 (W. Sittichaya) (12) .. Other distribution: Indonesia (Java), Malaysia (E. & W.). Intercepted in Japan in timber from East Malaysia. (3) Biology: Recorded from Octomeles (Datiscaceae), Parartocarpus (Moraceae) and rattans (Palmae). Probably polyphagous. The gallery system consists of branched tunnels in one transverse plane (Kalshoven 1959).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF9FF88FF41344F690B0E28.taxon	description	(Figs 11 – 12)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF9FF88FF41344F690B0E28.taxon	description	Other distribution: Malaysia (E.). The record from West Malaysia (Beaver & Browne 1979) was based on a misidentified specimen of Euwallacea andamanensis (Blandford). (3) Biology: Recorded from rattan (Palmae) (Schedl 1964 b).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF9FF88FF41365F6EC80A1C.taxon	description	New records: Chiang Mai, Doi Inthanon NP, campground pond, 18 ° 32.657 ' N, 98 ° 31.482 ' E, 1200 m, MT, 6 – 13. ix. 2006 (Y. Areeluck) (1); Doi Pha Hom Pok NP, 20 o 7.644 ' N, 99 o 8.89 ' E, 2000 m, at light, 24 – 30. vii. 2006 (H. Mendel & M. V. L. Barclay) (11); Doi Phaluang, 20 ° 1.06 ' N, 99 ° 9.581 ' E, 1449 m, MT, 20 – 27. vii. 2007 (Wongchai, P.) (1); Nakhon Ratchasima, Khao Yai NP, Dong Ngu How area, 14 ° 28.524 ' N, 101 ° 22.928 ' E, 757 m, MT, 26. xii. 2006 – 2. i. 2007 (Wirat Sook – kho) (1); Nakhon Sri Thammarat, Khao Luang NP, EtOH trap, 1. iii. 2011 (W. Sittichaya) (1); Namtok Yong NP, TV aerial, 8 ° 14.262 ' N, 99 ° 48.289 ' E, 966 m, MT, 7 – 14. vii. 2008 (Paiboon) (1); Phetchabun, Nam Nao NP, Hell evergreen forest, 16 ° 44.387 ' N, 101 ° 34.531 ' E, 838 m, pan trap, 24 – 25. xi. 2006 (N. Hongyothee) (1); as previous except: Checkpoint, 16 ° 43.695 ' N, 101 ° 33.797 ' E, 921 m, pan traps, 2 – 3. iii. 2007 (N. Hongyothi & L. Janteab) (1); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (1). Other distribution: From India through Southeast Asia and southern China to Taiwan, Japan and Korea in the North, and to the Philippines and Indonesian islands West of Wallace’s line in the South, but no previous records found for Thailand. Established but apparently not invasive in the U. S. A. (Haack 2006). (4) Taxonomy: This species is doubtfully distinct from Ambrosiodmus minor (Stebbing). Maiti & Saha (2004) give distinguishing characters, but various combinations of these characters occur in Thai specimens, and the size ranges of the two species nearly overlap. We have retained both species in this paper pending further study of specimens from a wider geographical range. Biology: The species is polyphagous, but may show some preference for Dipterocarpaceae in the southern part of its range, and for Fagaceae in the northern part (Browne 1961 a). Illustrations: P (Atkinson 2014, PaDIL 2014); D (Nunberg 1982 as Xyleborus lewisi).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF9FF89FF41324B69910FA0.taxon	description	Other distribution: India and Nepal, through Southeast Asia to East Malaysia, Taiwan. It also occurs in China (Yunnan) (R. A. Beaver, unpublished records). Intercepted in Japan in timber from East Malaysia. (4) Taxonomy: (see note on Ambrosiodmus lewisi above). Biology: Beeson (1930) describes the biology, gallery system and phenology. He notes that the species tends to attack timber which has been felled for several weeks rather than freshly felled. The species is polyphagous. Illustrations: P (Atkinson 2014, PaDIL 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF8FF89FF4137D7688709B7.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, ex EtOH trap, 1. iii. 2010 (W. Sittichaya) (1). This confirms the occurrence of the species in Thailand. Other distribution: Throughout China, Japan, Korea, Taiwan, Thailand, West Malaysia. Introduced to and established in North America and Australia (Rabaglia et al. 2006), and Italy (Faccoli et al. 2009). Intercepted in Japan in timber from China and Thailand. (1) Biology: A polyphagous species (Faccoli et al. 2009), which usually attacks smaller stems (Browne 1961 a). Illustrations: P (Atkinson 2014, PaDIL 2014).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF8FF89FF4131E36E510BBA.taxon	description	New record: Nakhon Sri Thammarat, Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 26. viii – 2. ix. 2008 (U-prai, K.) (2). Other distribution: Malaysia (E. & W.) (3) Biology: Recorded from Lophopetalum (Celastraceae), Parinari (Chrysobalanaceae), Xanthophyllum (Polygalaceae) and an unidentified genus of Annonaceae (Browne 1961 a). The gallery system has a few branches in one transverse plane. This large species usually attacks large logs, but is sometimes found in smaller branches (Browne 1961 a). Illustrations: P (Hulcr 2012); D (Nunberg 1978 as Xyleborus sarawakensis).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF8FF86FF4133ED690A0CF7.taxon	description	(Figs 13 – 14)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF8FF86FF4133ED690A0CF7.taxon	description	New record: Chumphon, Sawi distr., 10 ° 17 ' 56.5 '' N, 99 ° 01 ' 52.7 '' E, 95 m, durian plantation, EtOH trap, 1. xii. 2009, 1. ii. 2010 (W. Sittichaya) (2). Other distribution: Malaysia (W.). The species also occurs in East Malaysia (Sabah) (R. A. Beaver, unpublished record). (3) Taxonomy: This species is listed under Ambrosiodmus by Wood and Bright (1992), but has the morphological characters of Ambrosiophilus Hulcr & Cognato (Hulcr & Cognato 2009), and is therefore transferred to that genus. Biology: Browne (1961 a) notes that no hosts have been identified, but the beetle breeds in small stems (2 – 3 cm diameter), and the gallery system branches irregularly in three dimensions. Some species in this genus are mycocleptic (Hulcr & Cognato 2009), that is they parasitise the fungal ‘ gardens’ of other ambrosia beetles, but the associations of the species in Thailand have not been studied.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF7FF86FF4137226BEB094F.taxon	description	(Figs 15 – 16)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF7FF86FF4137226BEB094F.taxon	description	New record: Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, EtOH trap, 1. xi. 2009 (W. Sittichaya) (1). Other distribution: Indonesia (Java). The species also occurs in West Malaysia (R. A. Beaver, unpublished record). (3) Taxonomy: This species is listed under Ambrosiodmus Hopkins by Wood and Bright (1992), but has the morphological characters of Ambrosiophilus Hulcr & Cognato (Hulcr & Cognato 2009), and is therefore transferred to that genus. Biology: Unknown.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF7FF86FF41317A68460B17.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 15. ix. 2009 (W. Sittichaya) (3). Other distribution: Indonesia (Java), Papua New Guinea. (3) Biology: Recorded from Quercus (Fagaceae) and Tectona (Verbenaceae) in Java (Kalshoven 1959). A mycocleptic associate of Beaverium species (Hulcr & Cognato 2010 b, 2013). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF7FF86FF41334269960ADA.taxon	description	New record: Chiang Mai, Doi Chiangdao NP, Headquarters, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 2 – 3. viii. 2007 (S. Jugsu & A. Watwanich) (1). Other distribution: Indonesia (Sumatera), Malaysia (E. & W.). Records from the Solomon Is. in timber imported to Japan (Browne 1981 b, Ohno et al. 1988) need to be checked. (3) Taxonomy: The species is listed under Leptoxyleborus Wood by Wood & Bright (1992), but has the morphological characters of the genus Ancipitis Hulcr & Cognato (2013), and is here transferred to that genus. Biology: Polyphagous (Browne 1961 a, Ohno 1990, Ohno et al. 1988).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF6FF87FF41359B69570FDA.taxon	description	New records: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. ii. 2010 (W. Sittichaya) (1); Trang, Khao Bantad WS, Sairung Waterfall, 07 ° 26 ' 31.0 '' N, 99 ° 48 ' 28.6 '' E, 110 m, EtOH trap, 01. x. 2013 (W. Sittichaya) (1). Other distribution: Indonesia (Maluku, Mentawei Is., Sulawesi), Malaysia (E. & W.), New Guinea. (3) Taxonomy: The species is listed under Leptoxyleborus Wood by Wood & Bright (1992), but has been recently transferred to the new genus Ancipitis (Hulcr & Cognato 2013). Biology: Recorded only from Intsia (Leguminosae) and Shorea (Dipterocarpaceae) (Browne 1961 a), but probably polyphagous. The gallery system has a brood chamber, either between the bark and wood, or in the wood, rather than branched tunnels only (Browne 1961 a). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF6FF87FF41360D692208A6.taxon	description	New records: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iv., 1. x. 2010 (W. Sittichaya) (3); Trang, Khao Bantad WS, Sairung Waterfall, 07 ° 26 ' 31.0 '' N, 99 ° 48 ' 28.6 '' E, 110 m, EtOH trap, 01. x. 2013 (W. Sittichaya) (1). Other distribution: Indonesia (Java, Sumatera), Malaysia (E. & W.). Intercepted in Japan in timber from East Malaysia. The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (3) Taxonomy: The species is listed under Leptoxyleborus Wood by Wood & Bright (1992), but has the morphological characters of the genus Ancipitis and is here transferred to that genus. Biology: Recorded from four different families of angiosperm trees, and from Pinus merkusii (Pinaceae) (Browne 1961 a, Ohno 1990, Schedl 1969). It was frequently collected in pitfall traps baited with ethyl alcohol in Brunei and West Malaysia (R. A. Beaver pers. obs.). Like many other ambrosia beetles, adults are probably attracted to alcohol vapour emitted from dead trees as they decay (e. g. Miller & Rabaglia 2009, Ranger et al. 2011, Reding et al. 2011, Gorzlancyk et al. 2013). Illustrations: P (Nobuchi 1978 as Xyleborus punctatissimus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF6FF84FF4130D069E30DD0.taxon	description	Thai distribution: N: Chiang Mai. New to Thailand. New records: Chiang Mai, Doi Inthanon, summit forest, 18 ° 35.361 ' N, 98 ° 29.157 ' E, 2500 m, MT, 9 – 16. viii., 6 – 13. ix. 2006 (Y. Areeluck) (2); as previous except: Kew Maepan Trail, 18 ° 33.162 ' N, 98 ° 28.81 ' E, 2200 m, MT, 10 – 17. xi. 2006 (Y. Areeluck) (1); Doi Phahompok NP, Kewlom 1 / montane forest, 20 ° 3.549 ' N, 99 ° 8.552 ' E, 2174 m, MT, 7 – 14. ii. 2008 (Seesom, K.) (2); Doi Phaluang, 20 ° 1.06 ' N, 99 ° 9.581 ' E, 1449 m, MT, 21 – 28. ii. 2008 (Seesom, K.) (2). Other distribution: China, India (Meghalaya, Sikkim, W. Bengal), Japan, Korea, Myanmar, Russia (Kurile Is.). (1) Biology: A polyphagous species (e. g. Beeson 1930 (as Xyleborus cristatus Hagedorn) in India, Murayama 1936 in Japan, Yin et al. 1984 in China) usually attacking angiosperms, but also recorded from Pinus (Pinaceae) (Nobuchi 1966). In Thailand, it seems to be confined to the upper slopes of the mountains in the North. Illustrations: P (Hulcr 2012); D (Nunberg 1959 as Xyleborus apicalis).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF5FF84FF41340769300945.taxon	description	Thai distribution: (unspecified province) (Beaver & Liu 2010). N: Chiang Mai; N-E: Loei; S: Nakhon Sri Thammarat, Trang. New records: Chiang Mai, Chiang Mai University, 300 m, dry dipterocarp forest, FIT, 16. v. – 6. vi. 2005, 13. xii. 2005 – 5. i. 2006 (W. Puranasakul) (7); Doi Inthanon NP, campground pond, 18 ° 32.657 ' N, 98 ° 31.482 ' E, 1200 m, MT, 2 – 9. viii. 2006 (1); as previous except: checkpoint 2, 18 ° 31.559 ' N, 98 ° 29.941 ' E, 1700 m, MT, various dates from 29. vi – 21. ix. 2006 (5); as previous except: Kew Mae Pan, 18 ° 33.163 ' N, 98 ° 28.8 ' E, 2200 m, MT, 8 – 15. vii. 2006 (1) (all Y. Areeluck); Doi Phahompok NP, 20 o 7.644 ' N, 99 o 8.89 ' E, 2000 m, at light, 24 – 30. vii. 2006 (H. Mendel & M. V. L. Barclay) (2); Kewlom 1 / montane forest, 20 ° 3.549 ' N, 99 ° 8.552 ' E, 2174 m, MT, 18 – 25. vii. 2007 (Wongchai, P.) (1); Doi Phaluang, 20 ° 1.06 ' N, 99 ° 9.581 ' E, 1449 m, MT, 20 – 27. vii. 2007 (Wongchai, P.) (3); Doi Pui, 1400 m, EtOH trap, 16 – 20. viii., 6 – 10. ix. 2004 (W. Puranasakul) (8); Loei, Na Haeo, forest clearing, light trap, 16. v. 2003 (Constant & Smets) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, various dates from 01. iv. 2010 – 31. vi. 2011 (W. Sittichaya) (23); Trang, Khao Bantad WS, Sairung Waterfall, 07 ° 26 ' 31.0 '' N, 99 ° 48 ' 28.6 '' E, 110 m, EtOH trap, 01. xi. 2013 (W. Sittichaya) (1). Other distribution: China (Fujian), India, Myanmar, Taiwan, Vietnam. The species also occurs in Bhutan, Cambodia, Laos and Nepal (R. A. Beaver, unpublished records). (2) Biology: Recorded from five species in five different families (Lauraceae, Magnoliaceae, Rutaceae, Symplocaceae, Ulmaceae) (Wood & Bright 1992, Beaver & Liu 2010). Illustrations: D (Maiti & Saha 2004 as Cyclorhipidion hirtus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF5FF85FF41316D6F540C1F.taxon	description	New records: Chantaburi, Khao Khitchakut NP, 500 m N / Prabaht Unit, 12 ° 48.98 ' N, 102 ° 9.14 ' E, 12 m, MT, 22 – 29. ix. 2008 (Suthida & Charoenchai) (3); Chiang Mai, Queen Sirikit Botanic Gardens, 18 o 53.306 ' N, 98 o 58.432 ' E, 300 – 700 m, by hand, vii. 2006 (H. Mendel & M. V. L. Barclay) (1); Loei, Phu Ruea NP, Subhnonghin, 17 ° 28.772 ' N, 101 ° 21.308 ' E, 860 m, MT, 5 – 12. vii. 2006 (P. Tamtip) (1); as previous except: office, 17 ° 28.805 ' N, 101 ° 21.242 ' E, 870 m, MT, 19 – 26. vii. 2006 (N. Jaroenchai) (1); Nakhon Nayok, Khao Yai NP, Trail near Training Center 2, 14 ° 24.482 ' N, 101 ° 22.388 ' E, 755 m, evergreen forest, MT, 26. ii – 5. iii. 2007 (W. Sukho) (1); Nakhon Ratchasima, Khao Yai NP, near fire protection office, 14 ° 28.524 ' N, 101 ° 22.928 ' E, 757 m, MT, 12 – 19. vi. 2007 (P. Sandao) (1); Nakhon Sri Thammarat, Namtok Yong NP, Road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, 27. viii – 3. ix. 2008 (Samnaokan, S.) (1); as previous except: 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, pan trap, 10 – 11. ix. 2008 (U-prai, K.) (2); Phetchaburi, Kaeng Krachan NP, Pa La-U / bus parking, 12 ° 32.125 ' N, 99 ° 28.283 ' E, MT, 4 – 11. vii. 2008 (Akaradate & Thongbai) (3); Surat Thani, Khao Sok NP, Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, MT, 10 – 17. vii. 2008 (Buathong, S.) (1); as previous except: Klong Morg unit, 8 ° 53.725 ' N, 98 ° 39.025 ' E, 87 m, MT, 10 – 17. vii. 2008 (Buathong, S.) (1); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (1). Other distribution: China (Fujian), India (W. Bengal), Indonesia (Bali, Batoe Is., Java, Kalimantan, Sumatera), Malaysia (E. & W.), Philippines, New Britain, Solomon Is. Intercepted in Japan in timber from various countries in the region. The species also occurs in Brunei Darussalam, Indonesia (Maluku, Sulawesi), Laos and Vietnam (R. A. Beaver, unpublished records). (4) Biology: Browne (1961 a) suggests that this is mainly a ‘ hill’ species occurring at altitudes above 600 m, but the records from Thailand suggest that it frequently occurs at lower altitudes. The species is polyphagous (Browne 1961 a). In Thailand it has been recorded from Acacia auriculiformis (Leguminosae) (Hutacharern & Tubtim 1995). Illustrations: P (PaDIL 2014 as Hadrodemius ursulus); D (Maiti & Saha 2004 as Xylosandrus ursulus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF4FF85FF41344B68460ED8.taxon	description	New records: Chumphon, Thung Tako Distr., 10 ° 06 ' 03.3 '' N, 99 ° 04 ' 59.1 '' E, 20 m, durian plantation, EtOH trap, 1. xii. 2009, 1. ii. 2010 (W. Sittichaya) (2); Nakhon Sri Thammarat, Chang Klang Distr., Durian plantation, 08 ° 21 ' 3.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, EtOH trap, 1. x. 2009 (W. Sittichaya) (7); as previous except: 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, EtOH trap, 1. ii. 2010 (W. Sittichaya) (1). Other distribution: Indonesia (Java), Malaysia (E.), Philippines. Intercepted in Japan in timber from the Philippines. (3) Biology: Recorded from Canarium (Burseraceae), Dipterocarpus (Dipterocarpaceae), Mangifera (Anacardiaceae), and Palaquium (Sapotaceae). The gallery system, as in other species of Arixyleborus, consists of a single gallery penetrating the wood, sometimes with a few short branches. As the larvae develop, their feeding activity extends part of the main gallery into a longitudinal brood chamber usually approximately rectangular in shape, and the width of the main gallery (Browne, 1961 a, R. A. Beaver pers. obs.). Kalshoven (1959) gives some details of gallery systems and brood found in Canarium in Java. Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF4FF85FF41310F68660B7A.taxon	description	New records: Chiang Mai, Chiang Mai University, 300 m, dry dipterocarp forest, FIT, 21. ii. – 14. iii. 2005 (W. Puranasakul) (1); Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, MT, 30. ix – 7. x., 21 – 28. x. 2007 (Songkran & Apichart) (2); Doi Suthep NP, along a forest brook, 31. x. 2004 (M. Földväri, A. Orosz, L. Papp) (1); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (2). Other distribution: Malaysia (E. & W.), Myanmar, Philippines. Intercepted in timber imported to Japan and Korea from East Malaysia and the Philippines. (3) Taxonomy: The original reference given by Wood & Bright (1992) is incorrect. The correct reference is given above. Biology: Polyphagous. The frequent records from Dipterocarpaceae may simply reflect the abundance of this family in the forests of the region rather than indicating a preference for the family. Illustrations: P (Nobuchi 1978).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF4FF82FF4133AD6BB60F66.taxon	description	New records: Nakhon Nayok, Khao Yai NP, Valley at entrance of Huay Pak Chee, 14 ° 27.115 ' N, 101 ° 21.951 ' E, 733 m, litter sample, 25 – 28. xi. 2006 (P. Sandao) (1); Nakhon Ratchasima, Khao Yai NP, Dong Suer Paan, 14 ° 27.511 ' N, 101 ° 22.408 ' E, 760 m, moist evergreen forest, MT, 12 – 19. xii. 2006 (P. Sandao) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, various dates from 01. ii. 2010 – 31. vi. 2011 (W. Sittichaya) (20); Surat Thani, Khao Sok NP, Klong Mog Unit, 8 ° 53.725 ' N, 98 ° 39.025 ' E, 87 m, MT, various dates from 17. vii. – 11. xi. 2008, 24 – 31. iii. 2009 (Pongphan) (17); as previous except: Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, MT, various dates from 24. viii. – 30. xii. 2008 (Buathong, S.) (7); as previous except: Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 122 m, MT, 10 – 17. viii., 11 – 18. xi. 2008, 30. xii. 2008 – 6. i. 2009 (Pongphan) (3); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (1). Other distribution: Indonesia (Sulawesi, Sumatera), Malaysia (E. & W.), Philippines, Sri Lanka. Intercepted in Japan in timber from the region. (4) Biology: Polyphagous. Ohno (1990), for example, records twenty different genera in fifteen different families. Browne (1961 a) describes the gallery system. The life cycle takes about 8 weeks (Browne 1961 a). Illustrations: P (Nobuchi 1978).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF3FF82FF4137906E2F09C4.taxon	description	New records: Chumphon, Mueang distr., 10 ° 25 ' 37.9 '' N, 99 ° 03 ' 48.0 '' E, 78 m, durian plantation, EtOH trap, 1. i., 1. x. 2010 (W. Sittichaya) (2); Nakhon Sri Thammarat, Chang Klang District, Durian plantation, 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, EtOH trap, 1. xii. 2009, 1. iii. 2010 (W. Sittichaya) (2); as previous except: 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, EtOH trap, 01. ii. 2010 (4); Surat Thani, Surat Thani, Bhan Nasan Distr., 08 ° 46 ' 47.2 '' N, 99 ° 22 ' 46.2 '' E, 96 m, durian plantation, EtOH trap, 1. xii. 2009, 1. ii. 2010 (W. Sittichaya) (5). Other distribution: Malaysia (W.). The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished record). (3) Biology: Recorded from Dryobalanops and Shorea (Dipterocarpaceae), Castanopsis (Fagaceae) and Palaquium (Sapotaceae) (Browne 1961 a). The gallery system is typical of the genus (Browne 1961 a). Illustrations: P (Hulcr 2010); D (Nunberg 1961 as Arixyleborus aralidii Nunberg).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF3FF82FF4131F3682A0A80.taxon	description	Thai distribution: (unspecified province) (Hutacharern et al. 2007); (unspecified southern province) (Sittichaya et al. 2012 as Arixyleborus malayanensis [sic]); C: Kanchanaburi, Nakhon Nayok, Rayong (Sittichaya & Beaver 2009); N: Chiang Mai; S: Chumphon, Surat Thani. New records: Chiang Mai, Doi Pui, ex hard wood, 11. vii. 2002 (A. Cognato) (1); Chumphon, Thung Tako Distict, 10 ° 26 ' 28.3 '' N, 99 ° 04 ' 13.8 '' E, 70 m, durian plantation, EtOH trap, 1. i., 1. xii. 2010 (W. Sittichaya) (2); as previous except: Sawi distr., 10 ° 17 ' 56.5 '' N, 99 ° 01 ' 52.7 '' E, 95 m, durian plantation, EtOH trap, 1. iii., 1. xi. 2010 (W. Sittichaya) (4); Kanchanaburi, 50 km NW Erawan waterfall, 27. i. 1995 (A. Weigel) (1); Nakhon Nayok, Khao Yai NP, Office, 14 ° 24.619 ' N, 101 ° 22.778 ' E, pan trap, 10. vii. 2006 (P. Sandao) (1); Surat Thani, Bhan Nasan Distr., 08 ° 46 ' 47.2 '' N, 99 ° 22 ' 46.2 '' E, 96 m, durian plantation, EtOH trap, 1. i., 1. v. 2010 (W. Sittichaya) (2). Other distribution: China (Fujian, Sichuan, Xizang), India (Assam, W. Bengal), Indonesia (Java, Sumatera), Japan, Malaysia (W.), Sri Lanka, Vietnam. (4) Biology: Polyphagous (Beaver et al. 2008). The gallery system is typical of the genus. One gallery excavated by Kalshoven (1959) contained 47 offspring. Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF3FF83FF4132B7682A0F53.taxon	description	New records: Nakhon Sri Thammarat, Khao Nan NP, ex sifted litter, 2. iii., 24. iv. 2006 (A. Hasalem) (2); Khao Luang NP, headquarter, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, 01. iv. 2010 (W. Sittichaya) (2), 01. vi. 2010 (W. Sittichaya) (1); Chang Klang Distr., Durian plantation, 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, EtOH trap, 1. xi. 2009 (W. Sittichaya) (2). Other distribution: Cambodia, India (Assam, Andaman Is.), Indonesia (Sumatera), Malaysia (E. & W.), Philippines, Sri Lanka, Vietnam. Intercepted in Japan in timber from the region. (4) Biology: Polyphagous (Maiti & Saha 2004). It has also been collected from the crop of an edible-nest swiftlet (Collocalia fuciphaga) (Beaver & Browne 1979). Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF2FF83FF41378668460947.taxon	description	New record: Surat Thani, Bhan Nasan Distr., 08 ° 46 ' 47.2 '' N, 99 ° 22 ' 46.2 '' E, 96 m, durian plantation, EtOH trap, 15. ii. 2010 (W. Sittichaya) (2). Other distribution: Indonesia (Java), Malaysia (E. & W.), New Guinea. Intercepted in timber imported to Japan from East Malaysia. (3) Biology: Recorded from Castanea (Fagaceae), Dalbergia (Leguminosae), Dryobalanops and Shorea (Dipterocarpaceae), Palaquium (Sapotaceae) (Browne 1961 a, Kalshoven 1959). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF2FF83FF41317269570B6E.taxon	description	New records: Nakhon Sri Thammarat, Khao Luang NP, headquarter, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, various dates from 01. iii. 2010 – 30. vi. 2011 (W. Sittichaya) (56). Other distribution: Indonesia (Java), Malaysia (E.), New Guinea. Intercepted in Japan in timber imported from East Malaysia. (3) Biology: Recorded from three genera of Dipterocarpaceae, and from Canarium (Burseraceae) (Ohno 1990). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF2FF80FF41339868660C8D.taxon	description	New records: More than 3,000 specimens have been collected in central and southern regions of the country, primarily in Khao Luang NP in Nakhon Sri Thammarat, but the species is apparently absent from the northern and northeastern regions. Other distribution: India and Sri Lanka through Southeast Asia to Indonesia West of Wallace’s line, the Philippines and Taiwan. Imported to Australia, Japan, Korea, New Zealand, but not known to be established there. (4) Biology: Polyphagous. Browne (1961 a) suggests a possible preference for Dipterocarpaceae, but this may simply reflect the abundance of this family in the forests of the region. Browne (1961 a) describes the condition of attacked host material, the gallery system and development of the species. Illustrations: P (Nobuchi 1978).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF1FF80FF4134BB6846094A.taxon	description	New records: Chiang Mai, Doi Pui, ex hard wood, 11. vii. 2002 (A. Cognato) (1); Chumphon, Sawi distr., 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, durian plantation, EtOH trap (W. Sittichaya) (2); Nakhon Nayok, Khao Yai NP, Khao Keow spirit house, 14 ° 22.96 ' N, 101 ° 23.253 ' E, 750 m, pan trap, 9 – 10. ix. 2006 (W. Sook-kho) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 ' ' N, 99 ° 44 ' 14.7 '' E, 196 m, from 1. iv. 2010 – 1. viii. 2010 (W. Sittichaya) (30); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 9 – 16. ix., 16 – 23. ix. 2008 (U-prai, K.) (2); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (2). Other distribution: Indonesia (Java, Maluku, Sumatera), Malaysia (E. & W.), Papua New Guinea, Sri Lanka. Intercepted in Japan in timber imported from Indonesia and New Guinea. (4) Biology: Polyphagous (Browne 1961 a). The gallery system is typical of the genus. Browne (1961 a) gives some details of brood sizes and development. Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF1FF80FF41317D68D80B86.taxon	description	(Figs 17 – 18)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF1FF80FF41317D68D80B86.taxon	description	New records: Chiang Mai, Doi Inthanon, 5. viii. 2002 (K. Koivisto) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, various dates from 01. iii. 2010 – 30. vi. 2011 (W. Sittichaya) (105). Other distribution: Indonesia (Java, Maluku), Malaysia (E. & W.). Intercepted in Japan in timber from East Malaysia and Maluku. (3) Biology: Polyphagous (Browne 1961 a). The gallery system is typical of the genus. Browne (1961 a) gives some details of brood sizes and development.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF1FF81FF4133B0688D0DFD.taxon	description	New records: Chumphon, Sawi distr., 10 ° 19 ' 42.0 '' N, 99 ° 01 ' 09.0 '' E, 100 m, durian plantation, EtOH trap, 1. xii. 2010 (W. Sittichaya) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 15. ii. 2010 (W. Sittichaya) (1). Other distribution: Indonesia (Java, Sumatera). (3) Biology: Recorded from Dalbergia and Parkia (Leguminosae), and from Cinchona (Rubiaceae) (Kalshoven 1959). The gallery system is typical of the genus.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF0FF81FF41342B6B6A0E70.taxon	description	New record: Chaiyaphum, Phu Khieo Wildl. Res., 15. vii. 2005 (J. Hulcr et al.) (1). Other distribution: India (Assam, W. Bengal). The species also occurs in China (Yunnan) (R. A. Beaver, unpublished record). (2) Taxonomy: The species was originally described as a variety of Xyleborus rufobrunneus Eggers by Eggers (1930), but referred to as a good species by Beeson (1961). Wood and Bright (1992: 673) list it as a good species in the genus Ambrosiodmus Hopkins, but confusingly also list it (p. 769) as a synonym of Xyleborus rufobrunneus! We consider it a good species, but note that it has the morphological characters of the genus Beaverium Hulcr & Cognato (2009). Accordingly, we transfer it to that genus. Biology: Recorded from Artocarpus (Moraceae) and Pterocarpus (Leguminosae) (Beeson 1961). Illustrations: P (Hulcr 2012 as Ambrosiodmus dihingensis); D (Maiti & Saha 2004 as Ambrosiodmus dihingensis).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF0FF81FF4136A769D608F5.taxon	description	New record: Chumphon, [no precise locality], EtOH trap, 1. v. 2010 (W. Sittichaya) (1). Other distribution: India (Karnataka, Nicobar Is., W. Bengal), Myanmar. (2) Taxonomy: This species was recorded as Beaverium sundaensis (Eggers) by Sittichaya et al. 2012), but further study of the specimen indicates that it is distinct from that species, and should be assigned to the species listed by Wood and Bright (1992), and redescribed by Maiti and Saha (2004), as Ambrosiodmus lantanae (Eggers). However, the species does not belong in Ambrosiodmus, but has the morphological characters of Beaverium (Hulcr & Cognato 2009). It is here transferred to that genus. Biology: Recorded from six genera in five families in India (Beeson 1961), and evidently polyphagous. The gallery system lies in one plane and is circumferential or bifurcate (Beeson 1930). Illustrations: D (Maiti & Saha 2004 as Ambrosiodmus lantanae).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFF0FF81FF41332369CD0A90.taxon	description	Other distribution: Bangladesh, India (Assam, Sikkim, W. Bengal), Laos, Myanmar, Sri Lanka, Vietnam. The species also occurs in China (Yunnan) and Nepal (R. A. Beaver, unpublished records). (2) Biology: Polyphagous (Beeson 1961). The gallery system resembles that of C. improcerus (see below). Browne (1968) considers it a species of potential economic importance through its attacks on young trees. Illustrations: D (Maiti & Saha 2004 as Xylosandrus gravidus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCFFFBEFF41359B6FD10F08.taxon	description	Other distribution: Brunei Darussalam, Malaysia (E. & W.). Wood and Bright (1992) include India in the distribution, but we have seen no actual records of the species in that country. (3) Biology: Recorded from Canarium (Burseraceae), Dipterocarpus (Dipterocarpaceae) and an unidentified genus of Lauraceae (Browne 1961 a). Small stems are usually attacked. The gallery system has a circumferential tunnel in the transverse plane, and one or more longitudinal branches in which the larvae develop (Browne 1961 a).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCFFFBEFF41373F689A0865.taxon	description	Thai distribution: C: Nakhon Nayok; N: Chiang Mai (Beaver & Browne 1975 as Cnestus aterrimus (Eggers), Nakhon Sawan; N-E: Nakhon Ratchasima; S: Chumphon, Nakhon Sri Thammarat. New records: Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, MT, 10 – 17. iii. 2008 (Songkran & Apichart) (1); Doi Phahompok NP, Headquarters, 19 ° 57.961 ' N, 99 ° 9.355 ' E, 569 m, MT, 11 – 18. vii. 2007, 7 – 14. ii., 21 – 28. ii. 2008 (Seesom, K.) (3); Chumphon, Thung Tako Distr., 10 ° 26 ' 28.3 '' N, 99 ° 04 ' 13.8 '' E, 70 m, durian plantation, EtOH trap, 1. ii., 1. iii. 2010 (W. Sittichaya) (3); Nakhon Nayok, Khao Yai NP, Valley at entrance of Huay Pak Chee, 14 ° 27.115 ' N, 101 ° 21.951 ' E, 733 m, MT, 12 – 19. xi. 2006 (P. Sandao) (1); as previous except: Khao Keow spirit house, 14 ° 22.96 ' N, 101 ° 23.253 ' E, 750 m, pan trap, 7 – 8. ix. 2006, 7 – 8. iii. 2007 (W. Sook-kho, P. Sandao) (2); Nakhon Ratchasima, Khao Yai NP, Dong Ngu How area, 14 ° 28.524 ' N, 101 ° 22.928 ' E, 757 m, MT, 26. xii. 2006 – 2. i. 2007 (W. Sook-kho) (2); Nakhon Sawan, Mae Wong NP, Tha Ta Saeng, 15 ° 55.174 ' N, 99 ° 19.405 ' E, 168 m, MT, 8 – 15. x. 2007 (Kaewkok N. & Saksit P.) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 15. viii. 2010 (W. Sittichaya) (1). Other distribution: Japan (including Ryukyu Is.), Korea, Taiwan. (1) Taxonomy: The specimens recorded by Beaver and Browne (1975) from Cinnamomum (Lauraceae) as Cnestus aterrimus were misidentified. Biology: The species has a preference for Lauraceae (Beaver & Liu 2010), but there is one record from Quercus (Fagaceae). Illustrations: D (Nobuchi 1964, Nunberg 1972)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCFFFBEFF41309368460A75.taxon	description	Other distribution: Throughout the Oriental region from India to Indonesia and New Guinea, extending North to China, Japan, Korea, Taiwan. Introduced to and invasive in southern U. S. A. (Haack 2006, Rabaglia et al. 2006). (4) Biology: The biology of the species has been studied in Japan by Kajimura and Hijii (1992, 1994), in China by Tang (2000), and in U. S. A. by Stone and colleagues (Stone & Nebeker 2007, Stone et al. 2007). The associated ambrosia fungus has been described by Six et al. (2009). It is a pest of young Castanea mollissima (Fagaceae) trees in China (Zhejiang) (Tang 2000), but in USA appears to favour stressed host plants (Stone et al. 2007). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCDFFBCFF41359B6E470F36.taxon	description	New records: Chiang Mai, Doi Pui, 1400 m, EtOH trap, 16. v. – 6. vi. 2005 (W. Puranasakul) (1); Queen Sirikit Botanic Garden, 18 o 52 ' 52.1 '' N, 98 o 51 ' 55.9 '' E, 868 m, semi-evergreen forest, FIT, 24 – 26. x. 2006 (J. Phasuk) (1); Chumphon, Sawi district, 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, durian plantation, EtOH trap, 1. xii. 2009 (W. Sittichaya) (2). Other distribution: India (Sikkim), Indonesia (Java), Taiwan, Vietnam. (2) Biology: Recorded only from Eupatorium (Asteraceae) (Kalshoven 1959).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCDFFBCFF413760687C0960.taxon	description	New records: Chaiyaphum, Pa Hin Ngam NP, Thepana waterfall, 15 ° 38.884 ' N, 101 ° 25.84 ' E, 605 m, dry evergreen forest, MT, 1 – 7. x. 2006, (K. Sa-nog & B. Adnafai) (1); Chiang Mai, Doi Chiang Dao WS, Headquarters, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 549 m, MT, 3 – 24. iii. 2008 (Songkran & Apichart) (5); Doi Phahompok NP, Headquarters, 19 ° 57.961 ' N, 99 ° 9.355 ' E, 569 m, MT, 7 – 28. ii. 2008 (Seesom, K.) (4); Surat Thani, Khao Sok NP, Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 122 m, MT, 4 – 11. xi. 2008 (Pongphan) (1). Other distribution: Taiwan, Vietnam. The species also occurs in China (Yunnan) and Laos (R. A. Beaver, unpublished records). (2) Biology: Unknown. Illustrations: D (Nunberg 1959).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCDFFBCFF41319069850B93.taxon	description	New records: Nakhon Sri Thammarat, Namtok Yong NP, Road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, 3 – 10. ix. 2008 (Charnarwut, C.) (1); as previous except: TV aerial, 8 ° 14.262 ' N, 99 ° 48.289 ' E, 966 m, MT, 25. viii – 1. ix. 2008 (Paiboon) (1). Other distribution: Indonesia (Maluku), Malaysia (E. & W.). (3) Biology: Recorded from Vatica (Dipterocarpaceae), and an unidentified genus of Euphorbiaceae (Browne 1961 a). Althugh a fairly large and stout species, it only attacks stems of small diameter (3 – 5 cm). The gallery system has an entrance tunnel leading to a brood chamber in the longitudinal plane, or in very small stems to irregular longitudinal tunnels (Browne 1961 a). Illustrations: P (Hulcr 2013); D (Nunberg 1978 as Xyleborus bellus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCDFFBDFF4133C769970C18.taxon	description	New record: Chumphon, Sawi district, 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, durian plantation, EtOH trap, 1. iii. 2010 (W. Sittichaya) (1). Other distribution: Malaysia (E. & W.), Philippines. Intercepted in Japan in timber from East Malaysia. The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (3) Biology: Apparently highly host-selective, and recorded only from trees of the family Dipterocarpaceae (Wood & Bright 1992). It attacks cut trees of any size above about 5 cm diameter, and is recorded to attack freshly sawn, unseasoned boards (Browne 1961 a as Xyleborus cryphaloides Schedl). The gallery system is simply branched with small, irregular brood chambers in the longitudinal plane (Browne 1961 a).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCCFFBDFF41344F6BEB0E0D.taxon	description	Taxonomy: The species was transferred to Cnestus by Wood and Bright (1992), but it does not belong in this genus, and their entry for the species is erroneous. The species has not been recorded from China nor India. The pre- 1975 references cited by Wood and Bright (1992) refer to a different species. After examination of the holotype, the species was transferred to Coptodryas Hopkins by Beaver (1995 a). The species described under the name Cnestus cruralis (Schedl) by Maiti and Saha (2004) is not this species. Biology: Unknown.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCCFFBDFF41363B682A09F7.taxon	description	New records: Chiang Mai, Doi Pui, 1400 m, 16 – 20. viii., 8 – 12. xi. 2004 (W. Puranasakul) (3); Songkhla, Hat Yai, ex Dimocarpus longan, 20. iv. 2009 (W. Sittichaya) (4). Other distribution: India (Madhya Pradesh, W. Bengal), Indonesia (Java), Vietnam. (4) Taxonomy: Wood (1989) synonymised Xyleborus concinnus Beeson with this species, but we agree with Maiti and Saha (2004) that it should be considered a separate species. Biology: Recorded from four different families of trees and probably polyphagous. Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCCFFBDFF41302268F60B91.taxon	description	Thai distribution: N: Chiang Mai. New to Thailand. New record: Chiang Mai, Doi Pui, 1400 m, flight intercept trap, 31. i. – 4. ii. 2005 (W. Puranasakul) (1). Other distribution: Indonesia (Java), Sri Lanka. The species also occurs in Malaysia (E. & W.) (R. A. Beaver, unpublished records). (4) Biology: Recorded from Camellia (Theaceae), Cinnamomum (Lauraceae), and Lansium (Meliaceae) in Java by Kalshoven (1959) and probably polyphagous.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCCFFBDFF4133C068520AF1.taxon	description	Taxonomy: The genus Cryptoxyleborus Schedl was revised by Beaver and Hulcr (2008), and all the species found in Thailand are discussed and keyed in that paper. Biology: Unknown. Illustrations: D (Beaver 1990).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCBFFBAFF41359B6E080F5D.taxon	description	(Figs 19 – 20)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCBFFBAFF41359B6E080F5D.taxon	description	New records: Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, EtOH trap, 1. i. 2010 (W. Sittichaya) (1); Ubon Ratchatani, Pha Taem NP, 15 ° 27.336 ' N, 105 ° 34.87 ' E, 232 m, wild flower field, MT, 18 – 25. xi. 2006 (Sorawit & Thongdee) (1). Other distribution: Brunei Darussalam, Indonesia (Sumatera), Malaysia (E. & W.). (3) Biology: Like all species of Cryptoxyleborus with known host trees, the species attacks only trees of the family Dipterocarpaceae (Beaver & Hulcr 2008). The gallery system consists of an unbranched entrance tunnel leading to a single terminal brood chamber enlarged in the longitudinal plane (Browne 1961 a).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCBFFBAFF4137856BEB0EFF.taxon	description	(Figs 21 – 22)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCBFFBAFF4137856BEB0EFF.taxon	description	New record: Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, durian plantation, EtOH trap, 1. ix. 2009 (W. Sittichaya) (1). Other distribution: Indonesia (Sumatera). (3) Biology: Unknown.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCBFFBAFF41312A695708ED.taxon	description	New records: Chiang Mai, Doi Inthanon NP, Vachirathan Fall, 18 ° 32.31 ' N, 98 ° 36.048 ' E, 700 m, MT, 15 – 22. iv. 2007 (Y. Areeluck) (1); Chumphon, Sawi distr., 10 ° 19 ' 35.1 '' N, 99 ° 01 ' 21.0 '' E, 103 m, durian plantation, EtOH trap, 1. xi. 2009 (W. Sittichaya) (1). Other distribution: Australia (imported?), Brunei Darussalam, India (Kerala), Indonesia (Kalimantan, Sumatera), Malaysia (E. & W.), Myanmar, Philippines. Intercepted in Japan in timber imported from East Malaysia and the Philippines. (4) Biology: Recorded from four genera of Dipterocarpaceae (Beaver & Hulcr 2008). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCBFFBAFF413314682A0AF3.taxon	description	New records: Loei, Phu Kradueng NP, North of Na Noy Forest Unit, 16 ° 48.17 ' N, 101 ° 47.666 ' E, 276 m, mixed deciduous forest, MT, 26. xi – 2. xii. 2006 (S. Gong-lasae) (1); Phetchabun, Nam Nao NP, Forest protection unit - Huay Pralard cave, 16 ° 44.963 ' N, 101 ° 27.833 ' E, 711 m, pan trap, 16 – 17. i. 2007 (N. Hongyothi & L. Janteab) (1) Other distribution: India (Bihar, Orissa, W. Bengal), Myanmar, Philippines. (4) Taxonomy: The status of the type series is discussed by Beaver & Hulcr (2008). Biology: Recorded from two genera of Dipterocarpaceae (Beeson 1930). Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCAFFBBFF41359B692B0F2D.taxon	description	New records: Chiang Mai, Doi Pui, 1400 m, ex Castanopsis, ii. 2005 (W. Puranasakul) (1); as previous except: ex EtOH trap, 10 – 31. i. 2005 (1). Other distribution: China (Fujian). (1) Taxonomy: The species is listed by Wood and Bright (1992) in the genus Xyleborus Eichhoff. The lectotype (NMW) has been examined, and compared directly with the Thai specimens. The species has the morphological characters of the genus Cyclorhipidion Hagedorn (Hulcr & Cognato 2013), and is here transferred to that genus. Biology: The only recorded host is Castanopsis (Fagaceae).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCAFFBBFF41375B687F0985.taxon	description	New record: Chiang Mai, Doi Pui, 1400 m, EtOH trap, 13. xii. 2005 – 2. i. 2006 (W. Puranasakul) (1); Nan, Doi Phu Kha NP, Office 14, 19 ° 12.488 ' N, 101 ° 4.907 ' E, 1375 m, pan trap, 4 – 5. xii. 2007 (Charoen & Nikom) (2); Phetchabun, Nam Nao NP, Checkpoint, 16 ° 43.695 ' N, 101 ° 33.797 ' E, 921 m, pan traps, 6 – 7. iii. 2007 (N. Hongyothi & L. Janteab) (1). Other distribution: China, Russia (East Siberia, Far East). Established in Germany and in Canada and U. S. A. The species also occurs in Laos (R. A. Beaver, unpublished record). (1) Biology: Recorded from Quercus and Castanea (Fagaceae), and likely to have a strong preference for this family. The record from Pinus (Pinaceae) (Yanovskii 1999) is considered doubtful. In Thailand, it appears to be a montane species confined to the North of the country. Illustrations: P (Atkinson 2014).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCAFFBBFF4131B3691E0B96.taxon	description	New records: Phangnga, Sri Phannga NP, 25. iii. 2006 (S. Stephens et al.) (1); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (1). Other distribution: Indonesia (( Java, Sumatra), Malaysia (E. & W.). Intercepted in Japan in timber imported from East Malaysia. The species also occurs in the Philippines (R. A. Beaver, unpublished record). (3) Biology: Recorded from Castanopsis, Quercus and Pasania, and apparently strictly associated with Fagaceae (Browne 1961 a). It is not size-selective. The gallery system is usually unbranched, and has a terminal brood chamber enlarged in the longitudinal plane (Browne 1961 a). Illustrations: D (Nunberg 1982 as Xyleborus circumcisus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFCAFFB8FF4133C06ED00C45.taxon	description	New records: Chiang Mai, Doi Inthanon, 900 m, 28. vii. 2004 (A. Cognato) (1); Doi Pui, 1400 m, ex Castanopsis, 29. xi. – 3. xii. 2004, ii. 2005 (W. Puranasakul) (2); as previous except: EtOH trap, 21 – 25. xi. 2005, 17. iv. – 8. v. 2006 (2). Other records: China (Fujian), India (Uttar Pradesh), Nepal, Taiwan. The species also occurs in Japan (R. A. Beaver, unpublished record). (1) Biology: Recorded from Castanea (Murayama 1952 as Xyleborus ganshoensis Murayama), and Quercus (Fagaceae) (Schedl 1969 as Xyleborus tenuigraphus Schedl), and presumably with a close relationship with that family. Probably this is another species restricted to the mountains of the North in Thailand.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC9FFB8FF413473682A0933.taxon	description	New records: Chanthaburi, Khao Khitchakut NP, Campground / Prabaht Unit, 12 ° 48.852 ' N, 102 ° 9.204 ' E, 99 m, MT, 21 – 28. vii. 2008 (Suthida & Charoenchai) (1); Chiang Mai, Doi Pui, 1400 m, FIT, 16 – 20. viii. 2004 (W. Puranasakul) (2); as previous except: ex Castanopsis sp., 10 – 14. i. 2005 (1); Khun Khan NP, ex Castanopsis, 7. i. 2005 (Hulcr et al.) (1); Queen Sirikit Botanical Garden, 18 o 52 ' 41.6 '' N, 98 o 52 ' 00.9 '' E, 1034 m, evergreen forest, MV light, 19. x. 2006 (N. Likittrakhan, R. Sawkord et al.) (1); Nakhon Sri Thammarat, Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 12 – 19. xi. 2008 (U-prai, K.) (1); as previous except: TV aerial, 8 ° 14.262 ' N, 99 ° 48.289 ' E, 966 m, MT, 11 – 18. viii., 29. x. – 5. xi. 2008 (Paiboon) (3); Nan, Doi Phu Kha NP, Headq., 19 o 13 ' N, 101 o 07 ' E, 22 – 26. iv. 1999 (Hauck) (1); Surat Thani, Khao Sok NP, Klong Morg Unit, 8 ° 53.725 ' N, 98 ° 39.025 ' E, 87 m, MT, 16 – 23. xii. 2008, 13 – 20. i. 2009 (Pongphan) (2). Other distribution: India (Himachal Pradesh, W. Bengal), Indonesia (Sumatera), Myanmar. (4) Taxonomy: The species is listed by Wood and Bright (1992) under Xyleborus, but it has the morphological characters of Cyclorhipidion, and is here transferred to that genus. Biology: Recorded from Quercus (Fagaceae) (Beeson 1930), and now from Castanopsis. It is probably closely associated with Fagaceae. Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC9FFB8FF41316668460A47.taxon	description	New records: Chaiyaphum, Pa Hin Ngam NP, 15 ° 38.132 ' N, 101 ° 23.922 ' E, 698 m, ecotone between mixed deciduous / dry dipterocarp forest, pan trap, 9 – 10. viii. 2006 (K. Sa-nog & B. Adnafai) (1); as previous except: Thung Dok Kra Jeow, 15 ° 38.391 ' N, 101 ° 23.609 ' E, 750 m, MT, 1 – 7. i. 2007 (K. Sa-nog & B. Adnafai) (1); Phu Khieo Wildl. Res., ex Castanopsis pseudohystrix, 18. vii. 2006 (S. Sonthichai) (2); Chiang Mai, Doi Pui, 1400 m, ex EtOH trap, 16 – 20. viii. 2004, 14 – 15. iii. 2005 (W. Puranasakul) (2); as previous except: ex Castanopsis sp., viii. 2005 (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, ex EtOH trap, various dates from 1. iii. 2010 – 30. vi. 2011 (W. Sittichaya) (151); Songkhla, Ton Nga Chang WS, 06 ° 59 ' 40 '' N, 100 ° 08 ' 58 '' E, 98 m, EtOH trap, 1. x. 2013 (W. Sittichaya) (1); Trang, Khao Bantad WS, Sairung Waterfall, 07 ° 26 ' 31.0 '' N, 99 ° 48 ' 28.6 '' E, 110 m, EtOH trap, 1. x. 2013 (W. Sittichaya) (1). Other distribution: ‘ Borneo’, Indonesia (Java), Malaysia (W.), Philippines, Papua New Guinea. (3) Biology: Recorded from Castanopsis, Lithocarpus, Pasania and Quercus (Fagaceae), and probably closely associated with that family. The gallery system has few branches, and small, rather irregular brood chambers in the longitudinal plane (Browne 1961 a). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC9FFB9FF41327168CA0CD5.taxon	description	Other distribution: Indonesia (Java). (2) Biology: Recorded here from Castanopsis (Fagaceae). In Thailand, this appears to be another montane species, probably strongly associated with Fagaceae.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC8FFB9FF41370368D909BD.taxon	description	New records: Chanthaburi, Khao Khitchakut NP, 100 m N / Prabaht Unit, 12 ° 48.842 ' N, 102 ° 9.144 ' E, 203 m, MT, 7 – 14. vii., 14 – 21. vii. 2008 (Charoenchai & Suthida) (2); Chumphon, Sawi distr., 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, durian plantation, 1. ii. 2010 (W. Sittichaya) (1); Nakhon Sri Thammarat, Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 23 – 30. ix. 2008 (U-prai, K.) (1); as previous except: 8 ° 14.262 ' N, 99 ° 48.289 ' E, 966 m, MT, 14 – 21. vii., 11 – 18. viii. 2008 (Paiboon) (2); Phetchabun, Thung Salaeng Luang NP, Kaeng Wang Nam Yen, 16 ° 36.587 ' N, 100 ° 53.395 ' E, MT, 16 – 22. xi. 2006 (no collector) (1); as previous except: 16 ° 37.531 ' N, 100 ° 53.745 ' E, 16 – 22. xi., 6 – 13. xii. 2006 (2); Suphanburi, Pu Toei NP, Tapern Ki – yai waterfall, 14 ° 58.886 ' N, 99 ° 19.369 ' E, MT, 7 – 14. i. 2009 (Wangkum P.) (1); Surat Thani, Khao Sok NP, Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 122 m, MT, 7 – 14. iv. 2009 (Pongphan) (1). Other distribution: Malaysia (W.). The species also occurs in Brunei Darussalam and East Malaysia (Sabah) (R. A. Beaver, unpublished records). (3) Biology: Unknown. Illustrations: D (Beaver & Browne 1979)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC8FFB9FF4131EB6F280A30.taxon	description	New records: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, various dates from 01. iii. 2010 – 30. vi. 2011 (W. Sittichaya) (71); Surat Thani, Khao Sok NP, EtOH trap, 22 – 24. iii. 2006 (S. Stephens et al.) (1). Other distribution: Indonesia (Sumatera), Malaysia (E. & W.), Philippines. Schedl (1942 b as Xyleborus decipiens Eggers) recorded the species from Salomon I. in the Chagos Archipelago (now part of the British Indian Ocean Territory). The locality appears to have been uncritically changed to the Solomon Is. by subsequent authors (Browne 1961 a, Bigger 1988, Wood & Bright 1992). It remains to be shown whether the species actually occurs in the Solomon Is. Intercepted in Japan in timber from East Malaysia. (3) Biology: Recorded largely from Canarium and other genera of Burseraceae, and clearly strongly attracted to this family, but also recorded from Balanocarpus and Dryobalanops (Dipterocarpaceae) and from Pithecellobium (Leguminosae) (Browne 1961 a). The gallery system and brood development is described by Browne (1961 a).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC7FFB7FF41326B688F0CA8.taxon	description	New records: Nakhon Sri Thammarat, Namtok Yong NP, Nature trail / stream, 8 ° 10.351 ' N, 99 ° 44.519 ' E, 100 m, pan trap, 10 – 11. viii. 2008 (U-prai K.) (1). Other distribution: Indonesia (Java), Malaysia (E. & W.), Philippines, Sri Lanka. Intercepted in Japan in timber from the Philippines. The species also occurs in Brunei Darussalam and China (Yunnan) (R. A. Beaver, unpublished records). (4) Biology: Polyphagous (Browne 1961 a). The gallery system consists of branched tunnels in one transverse plane without brood chambers (Kalshoven 1959).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC6FFB7FF4134DF69CE0E9D.taxon	description	Thai distribution: N: Chiang Mai. New to Thailand. New records: Chiang Mai, Doi Chiang Dao, 13. vii. 2002 (A. Cognato) (2); Doi Pui, 1400 m, EtOH trap, 22. vi. – 1. vii. 2005 (W. Puranasakul) (1). Other distribution: Indonesia (Java, Sulawesi, Sumatera), Malaysia (E. & W.), Philippines. Intercepted in Japan in timber imported from the region. The species also occurs in Laos (R. A. Beaver, unpublished records). (3) Biology: Polyphagous (Browne 1961 a, Ohno 1990). The gallery system branches in three dimensions and has brood chambers in the longitudinal plane (Browne 1961 a). Illustrations: D (Nunberg 1978 as Xyleborus amphicranoides).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC6FFB7FF4136CB6B520838.taxon	description	Thai distribution: (unspecified province) (Browne 1961 a); S: Surat Thani. New records: Surat Thani, Khao Sok NP, Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, pan trap, 16 – 17. vii. 2008 (Pongphan) (1). Other distribution: Malaysia (W.), Myanmar. (2) Biology: Polyphagous (Beeson 1930, Browne 1961 a). The gallery system resembles that of D. amphicranoides (see above).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC6FFB7FF41306F6BEB0BDE.taxon	description	New records: Surat Thani, Khao Sok NP, EtOH trap, 22 – 24. iii. 2006 (S. Stephens et al.) (1). Other distribution: Indonesia (Java), Malaysia (E.). Intercepted in Japan in timber imported from East Malaysia. (3) Biology: Unknown.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC6FFB4FF4132086B840ECD.taxon	description	Thai distribution: N: Chiang Mai; N-E: Nakhon Ratchasima; S: Nakhon Sri Thammarat, Songkhla, Surat Thani, Trang (Beaver 1999 as Xyleborus emarginatus). New records: Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan traps, 1 – 3. viii., 6 – 7. x. 2007 (Songkran & Apichart) (2); as previous except: Headquarters, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan traps, 1 – 3. viii. 2007 (S. Jugsu & A. Watwanich) (2); as previous except: Pha Tang unit, 19 ° 24.978 ' N, 98 ° 54.886 ' E, 526 m, MT, 30. ix – 7. x. 2007 (Songkran & Apichart) (4); Pong Yaeng NP, 900 m, ex hardwood branch, vii. 2005 (Hulcr et al.) (4); Nakhon Ratchasima, Khao Yai NP, nr Fire protection office, 14 ° 28.285 ' N, 101 ° 22.57 ' E, 751 m, pan traps, 11 – 12. vi. 2007 (P. Sandao) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, various dates from 01. iii. 2010 – 30. vi. 2011 (W. Sittichaya) (113); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, pan trap, 28 – 29. vii., 6 – 7. ix. 2008 (U-prai, K.) (2); as previous except: MT, 29. vii. – 5. viii. 2008 (1); as previous except: road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, 22 – 29. vii. 2008 (Charnarwut, C.) (1); Songkhla, Ton Nga Chang WS, 20. ii. 2012 (R. A. Beaver) (2); Surat Thani, Khao Sok NP, Klong Morg Unit, 8 ° 53.725 ' N, 98 ° 39.025 ' E, 87 m, MT, 28. x – 4. xi. 2008 (Pongphan) (1); as previous except: Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, MT, 24 – 31. viii. 2008 (Buathong, S.) (1); as previous except: pan trap, 15 – 16. x. 2008 (Pongphan) (1). Other distribution: From India (Nicobar Is.), Sri Lanka, China (Fujian, Xizang) and Taiwan, through Southeast Asia and Indonesia to New Guinea, Australia and the Solomon Is. Frequently intercepted in Japan in timber imported from the region. (4) Taxonomy: The original reference given by Wood and Bright (1992) is incorrect. The correct reference is given above. Biology: Strongly polyphagous (Browne 1961 a, Kalshoven 1959). The gallery system often includes surface galleries and brood chambers between bark and wood, in addition to deeper galleries (Browne 1961 a). Freshly sawn timber is sometimes attacked. Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013, PaDIL 2014); D (Nunberg 1959, Maiti & Saha 2004 both as Xyleborus emarginatus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC5FFB4FF4136FB6E100A44.taxon	description	New records: Chiang Mai, Queen Sirikit Botanic Garden, 18 o 53 ' 21.1 '' N, 98 o 51 ' 40.1 '' E, 788 m, MV light, 15. ix. 2006 (J. Phasuk, W. Srisuka et al.) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, various dates from 01. iii. 2010 – 30. vi. 2011 (W. Sittichaya) (69); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, pan trap, 27 – 31. vii., 9 – 10. ix. 2008 (U-prai, K.) (7); as previous except: MT, 5 – 12. ix., 23 – 30. ix. 2008 (2); Surat Thani, Khao Sok NP, Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, MT, 24 – 31. viii. 2008 (Buathong, S.) (1); as previous except: pan trap, 15 – 16. x. 2008 (Pongphan) (1); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (4). Other distribution: From India (Assam) and Nepal through Southeast Asia and Indonesia to New Guinea, the Solomon Islands and Australia. Frequently intercepted in Japan in timber imported from the region. (4) Taxonomy: The original reference given by Wood and Bright (1992) is incorrect. The correct reference is given above. Hulcr (2010) considers Debus shoreae (Stebbing) to be a synonym of this species, but we prefer to keep them as separate species (see D. shoreae for distinguishing characters). Biology: Strongly polyphagous (Browne 1961 a, Ohno 1990). The gallery system resembles that of D. emarginatus (see above). Illustrations: P (Hulcr 2013, PaDIL 2014); D (Nunberg 1978 as Xyleborus fallax).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC5FFB5FF41327369B60E00.taxon	description	New records: Chiang Mai, Doi Chiangdao NP, Headquarter s, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 2 – 3. viii. 2007 (S. Jugsu & A. Watwanich) (1); as previous except: 6 – 7. x. 2007 (Songkran & Apichart) (2); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, durian plantation, EtOH trap, 1. xii. 2009 (W. Sittichaya) (1); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 30. vi. 2011 (W. Sittichaya) (3); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 23 – 29. vii., 16 – 23. ix. 2008 (U-prai, K.) (2). Other distribution: The species is distributed from India and Sri Lanka through Southeast Asia and Indonesia to New Guinea, Australia, Solomon Is. and Fiji. Frequently intercepted in Japan in timber imported from the region. (4) Biology: Polyphagous. Browne (1961 a) and Beaver and Browne (1979) suggest a preference for Moraceae, but the species will attack many other families of trees. The gallery system is shallow, penetrating the wood for only 2 – 3 cm (Browne 1961 a). Illustrations: P (Hulcr 2013); D (Maiti & Saha 2004 as Xyleborus fallax).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC4FFB5FF413637682A0B7A.taxon	description	Thai distribution: N: Chiang Mai, Tak; S: Nakhon Sri Thammarat (Schedl 1936 a as Xyleborus fallax). New records: Chiang Mai, Pong Yaeng NP, 900 m, vii. 2005 (J. Hulcr et al.) (9); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (2). Other distribution: India, Indonesia (Java, Sumatera), Malaysia (E. & W.). The species also occurs in China (Guanxi) and Laos (R. A. Beaver, unpublished records). Intercepted in Japan from timber imported from East Malaysia and Indonesia. (4) Taxonomy: Schedl (1954 b) corrected his Thai record of this species as Xyleborus fallax (Schedl 1936 a). The species is considered to be a synonym of Debus fallax (see above) by Hulcr (2010), but we consider it to be sufficiently morphologically distinct to be retained as a separate species. D. shoreae can be distinguished from D. fallax by the following characters (D. shoreae characters given first): body length 3.0 – 3.5 mm vs 2.4 – 2.9 mm; pronotal disc strongly, more coarsely punctured vs pronotal disc very finely punctured; elytral declivity with the suture not raised, impunctate except for a single row of punctures running from the upper margin to the inner margin of the second declivital spine and thence to the apical emargination vs elytral declivity with the suture weakly raised and weakly rugulose on each side, the face with irregularly placed punctures in addition to the single row present in D. shoreae; apical emargination rather shallow, distinctly wider than deep vs apical emargination as wide as deep or deeper than wide. Studies of the DNA of these and related species are needed. Biology: Polyphagous, possibly with a preference for Dipterocarpaceae (Beeson 1930, 1961). The gallery system resembles that of D. emarginatus (see above). Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC4FFB2FF4133AD69250E10.taxon	description	New records: Chiang Mai, Doi Inthanon, 5. viii. 2002 (K. Koivisto) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. xii. 2010 (W. Sittichaya) (1); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, pan trap, 29 – 30. vii. 2008 (U-prai, K.) (1); Surat Thani, Khao Sok NP, Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 122 m, MT, 23 – 30. xii. 2008 (Pongphan) (1). Other distribution: ‘ Borneo’, Malaysia (E. & W.), Papua New Guinea, Taiwan. Intercepted in Australia and Japan in timber imported from the region. (3) Taxonomy: Hulcr and Cognato (2013) consider this species to be a synonym of Diuncus justus (Schedl), but we prefer to keep the two species separate (Beaver & Liu 2010). Diuncus ciliatoformis can be distinguished from D. justus by the following characters (D. ciliatoformis characters given first): body length 1.7 – 1.9 mm vs 1.4 – 1.6 mm; length to width ratio 2.38 – 2.56 vs 2.10 – 2.29; pronotum more broadly rounded anteriorly, the sides subparallel in basal half, the posterior angles subrectangular, the median pair of teeth on the anterior margin usually little larger than the next outer pair vs pronotum more narrowly and angularly rounded anteriorly, the sides evenly rounded in the posterior half, the posterior angles broadly rounded, the median pair of teeth on the anterior margin distinctly larger than the next outer pair; elytral length to width ratio 1.43 – 1.58 vs 1.30 – 1.43; sutural interstriae distinctly raised on elytral declivity, elytral pubescence denser with strial hairs present on disc and declivity vs sutural interstriae not raised on declivity, elytral pubescence sparser, strial hairs absent or very short. In Brunei and Sabah, where both species occur together, they remain distinct. DNA studies of the species in this group are needed. Biology: The species of Diuncus are mycocleptic, making use of the ambrosia fungi of other ambrosia beetles, and lack mycangia (Hulcr & Cognato 2010 b). D. ciliatoformis appears to have a preference for ambrosia beetles attacking Dipterocarpaceae (Browne 1961 a). The gallery system is simple with a terminal brood chamber in the longitudinal plane (Browne 1961 a). Illustrations: P (Hulcr 2013 as synonym of Diuncus justus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC3FFB2FF41364769C50B25.taxon	description	New records: Chanthaburi, Khao Khitchakut NP, 500 m N / Prabaht Unit, 12 ° 48.98 ' N, 102 ° 9.14 ' E, 12 m, MT, 1 – 8. ix. 2008 (Suthida & Charoenchai) (1); as previous except: 50 m NE / Prabaht Unit, 12 ° 48.779 ' N, 102 ° 9.181 ' E, 107 m, MT, 7 – 28. vii. 2008 (3); Chiang Mai, Fang prov., 8 km E Doi Anh Kang, over a rocky brook, 2. xi. 2004 (M. Földväri, A. Ordiz) (2); Kamphaeng Phet, Mae Wong NP, Chong Yen, 16 ° 5.212 ' N, 99 ° 6.576 ' E, 1306 m, MT, 8 – 15. x. 2007 (Piluek C. & Inpuang A.) (1); Phetchaburi, Kaeng Krachan NP, Pa La-U / bus parking, 12 ° 32.125 ' N, 99 ° 28.283 ' E, MT, 28. vi. – 4. vii., 18 – 25. vii. 2008 (Akaradate & Thongbai) (4); Phitsanulok, Thung Salaeng Luang NP, 16 ° 50.217 ' N, 100 ° 52.541 ' E, 580 m, Dry evergreen [forest], MT, 11 – 18. viii. 2006 (P. Pranee) (1); Surat Thani, Khao Sok NP, Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 123 m, litter sampling, 10 – 15. vii. 2008 (Pongphan) (1). Other distribution: India (Andaman Is., Assam, W. Bengal), Laos, Nepal, Taiwan. (2) Biology: Polyphagous (Beeson 1930, Maiti & Saha 2004). Hulcr and Cognato (2009) found it in association with Hadrodemius globus (Blandford) in Thailand, with the gallery systems ‘ deeply intertwined’, and suggest ‘ parasitic exploitation’ by D. corpulentus. Illustrations: D (Maiti & Saha 2004 as Xyleborus corpulentus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC3FFB3FF4133536E7A0CF0.taxon	description	New records: More than 130 specimens have been collected in all parts of the country, the majority in the southern provinces of Nakhon Sri Thammarat and Surat Thani. The record of Diuncus quadrispinosulus (Eggers) by Sittichaya et al. (2012) from an unspecified southern province should be referred to D. haberkorni. Other distribution: Recorded from India and Sri Lanka through Southeast Asia to Japan (Ryukyu Is.) and Taiwan in the North, and to New Guinea in the East. It also occurs in China (Yunnan) (R. A. Beaver, unpublished records). The species was originally described from German East Africa (Tanzania), but had not been found in Africa again since the description (Schedl 1963). However, a recent (November 2013) collection from mangroves in South Africa (R. A. Beaver, unpublished) shows that it is is still present on the African continent. It is evidently an Oriental species introduced to Africa through human agency. (4) Biology: Polyphagous (Beeson 1930, Browne 1961 a). It usually attacks small branches and makes longitudinal tunnels in the middle of the branch (Browne 1961 a). The species is sometimes associated with other xyleborines (Beaver & Browne 1979, Hulcr & Cognato 2010 b), but may also occur alone (Hulcr & Cognato 2009). Illustrations: P (Hulcr 2013); D (Maiti & Saha 2004 as Xyleborus haberkorni).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC2FFB3FF413727696B084D.taxon	description	New records: Chumphon, Thung Tako Distr., 10 ° 02 ' 21.8 '' N, 98 ° 59 ' 13.5 '' E, 107 m, durian plantation, EtOH trap, 1. i. 2010 (W. Sittichaya) (2); Nakhon Nayok, Khao Yai NP, Lam Takong view point, 14 ° 25.82 ' N, 101 ° 23.754 ' E, 744 m, MT, 5 – 12. x. 2006 (W. Sook-kho) (1); as previous except: Valley at entrance of Huay Pak Chee, 14 ° 27.115 ' N, 101 ° 21.951 ' E, 733 m, 19 – 26. xi., 26. xi. – 3. xii. 2006 (2); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, Durian plantation, EtOH trap, 1. ix. 2009 (W. Sittichaya) (4); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iii. 2010 (W. Sittichaya) (4); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 16 – 23. ix. 2008 (U-prai, K.) (1); Phetchabun, Thung Salaeng Luang NP, Kaeng Wang Nam Yen, 16 ° 36.587 ' N, 100 ° 53.395 ' E, MT, 16 – 22. xi., 22 – 29. xi. 2006 [no collector] (2); Surat Thani, Rajaprapa reservoir, ex cut liane, 24. ii. 2012 (R. A. Beaver) (1). Other distribution: Indonesia (Java, Sumatera), Malaysia (E. & W.). Intercepted in Japan in timber from the region. The species also occurs in Brunei Darussalam, Indonesia (Sulawesi), and the Philippines (R. A. Beaver, unpublished records). (3) Biology: Polyphagous (Kalshoven 1959, Browne 1961 a). It attacks both small branches and larger logs. The form of the gallery system depends on the size of the breeding material, but branches in three dimensions, and has no distinct brood chambers (Browne 1961 a). A sex ratio of 1 ♂: 10.4 ♀ is recorded by Kalshoven (1959). Illustrations: D (Nunberg 1959 as Xyleborus javanus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC2FFB3FF41307B6B180A15.taxon	description	New records: Surat Thani, Ratchaprapa reservoir, ex cut liane, 24. ii. 2012 (R. A. Beaver) (2). Other distribution: Indonesia (Java), Japan, Malaysia (E. & W.), New Guinea, Philippines. (3) Biology: Polyphagous (Browne 1961 a). The gallery system of this species may include brood chambers (Browne 1961 a).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC2FFB0FF41324368460F38.taxon	description	New records: Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, MT, 10 – 17. iii. 2008 (Songkran & Apichart) (1); as previous except: Pha Tang unit, 19 ° 24.978 ' N, 98 ° 54.886 ' E, 526 m, 30. ix – 7. x. 2007 (1); Pong Yaeng NP, ex hardwood, vii. 2005 (J. Hulcr et al.) (3); Loei, Phu Ruea NP, office, 17 ° 28.805 ' N, 101 ° 21.242 ' E, 870 m, MT, 12 – 19. vii. 2006 (Patikhom T.) (1); Surat Thani, Bhan Nasan Distr., 08 ° 46 ' 47.2 '' N, 99 ° 22 ' 46.2 '' E, 96 m, EtOH trap, durian plantation, 1. iii. 2010 (W. Sittichaya) (1); Ubon Ratchathani, Pha Taem NP, Saeng Chan Waterfall, 15 ° 31.985 ' N, 105 ° 35.774 ' E, 155 m, MT, 12 – 20. iii. 2007 (P. Tonsu & B. Sapsiri) (1). Other distribution: Indonesia (Java, Sumatera), Malaysia (E. & W.). Intercepted in Japan in timber from East Malaysia. The species also occurs in Brunei Darussalam and China (Yunnan) (R. A. Beaver, unpublished records). (3) Biology: Polyphagous (Browne 1961 a). The gallery system is branched in three dimensions, but does not penetrate deeply into the wood. (Browne 1961 a). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC1FFB0FF41376F6E6008F7.taxon	description	New records: Chiang Mai, Chiang Mai University, 300 m, EtOH trap, 21. ii. – 14. iii. 2005, 13. ii. – 6. iii. 2006 (W. Puranasakul) (2); Doi Phahompok NP, Headquarters, 19 ° 57.961 ' N, 99 ° 9.355 ' E, 569 m, MT, 28. ii – 7. iii. 2008 (Seesom, K.) (1); as previous except: 11 – 18. vii. 2007 (Wongchai, P.) (1); Maerim, ex mango branch, 30. xi. 2007 (R. A. Beaver) (1); Chumphon, Sawi distr., 10 ° 17 ' 56.5 '' N, 99 ° 01 ' 52.7 '' E, 95 m, durian plantation, EtOH trap, 1. x. 2009 (W. Sittichaya) (8); Mae Hong Son, Namtok Mae Surin NP, Car park, 19 ° 21.593 ' N, 97 ° 59.254 ' E, litter sampling, 7 – 10. ii. 2008 (Na-maadkam, M.) (1); Nakhon Ratchasima, Khao Yai NP, Orchid fall, 25. i. 1995 (Weigel) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, Durian plantation, EtOH trap, 1. xii. 2009 (W. Sittichaya) (4); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iii. 2010 (W. Sitttichaya) (2); Phetchaburi, Kaeng Krachan NP, Panernthung / km 30, 12 ° 49.598 ' N, 99 ° 21.827 ' E, MT, 24 – 31. x. 2008 (Sirichai) (1); Surat Thani, Bhan Nasan Distr., 08 ° 46 ' 47.2 '' N, 99 ° 22 ' 46.2 '' E, 96 m, EtOH trap, durian plantation, 1. ii. 2010 (W. Sittichaya) (9); Trang, Khao Chong, Khaophapha, 200 – 400 m, 10. i. 1964 (G. A. Samuelson) (4). Other distribution: Throughout the tropical regions of Africa and Asia to New Guinea, Australia and the Pacific islands. (5) Biology: Polyphagous (Browne 1961 a, Schedl 1963). The biology and gallery system are described by Kalshoven (1959), Browne (1961 a) and Schedl (1963). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC1FFB1FF41332269F80C45.taxon	description	New records: Chiang Mai, Doi Chiangdao NP, Headquarters, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 1 – 3. viii., 5 – 6. viii. 2007 (S. Jugsu & A. Watwanich) (5); Doi Phahompok NP, Headquarters, 19 ° 57.961 ' N, 99 ° 9.355 ' E, 569 m, MT, 11 – 18. vii. 2007 (Wongchai, P.) (1); Thanon Tong Chai, 19 o 55 ' N, 99 o 06 ' E, 750 m, 26 – 28. v. 1991 (D. Král & V. Kubáň) (1); Kanchanaburi, 14 o 42 ' N, 98 o 52 ' E, 17. vii. 2002 (A. Cognato) (1); as previous except: 14 o 57 ' N, 98 o 40 ' E, 16. vii. 2002 (3); Tak, Umphang Distr., Thung Yai WS, Song Bae stream, 15 o 28 ' N, 98 o 48 ' E, 300 m, evergreen rain forest, 18 – 27. iv. 1988 (M. J. D. Brendell) (1). Other distribution: From India through Southeast Asia and Indonesia to New Guinea and the Federated States of Micronesia. Intercepted in timber imported from the region to Japan and New Zealand. (4) Biology: Polyphagous (Beeson 1930, Browne 1961 a). The gallery system is simply branched in one transverse plane without brood chambers (Browne 1961 a). Illustrations: P (Hulcr 2013, PaDIL 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC0FFB1FF41347368EF0E70.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. vi. 2010 (W. Sittichaya) (1). Other distribution: From India (Andaman Is.), through China (Yunnan), Taiwan, Vietnam, Malaysia (E. & W.), Indonesia and the Philippines to New Guinea, Australia and the Pacific islands. Frequently intercepted in Japan in timber imported from the region. (4) Biology: Polyphagous (Browne 1961 a). The biology and gallery system are described by Browne (1961 a) and Kalshoven (1962). The species is an important pest of teak (Tectona grandis) (Verbenaceae) in Java and other areas where there is only a short or no dry season (Browne 1968, Kalshoven 1962). Illustrations: P (Hulcr 2013, PaDIL 2014).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFC0FFAEFF4136A76B330C60.taxon	description	New records: Chanthaburi, Khao Khitchakut NP, 500 m N / Prabaht Unit, 12 ° 48.98 ' N, 102 ° 9.14 ' E, 12 m, MT, 1 – 8. ix., 15 – 22. ix. 2008 (Suthida & Charoenchai) (2); Chumphon, Thung Tako Distr., 10 ° 06 ' 03.3 '' N, 99 ° 04 ' 59.1 '' E, 20 m, ex durian branch, 1. x. 2009 (W. Sittichaya) (2); Kanchanaburi, 14 o 04 ' N, 98 o 67 ' E, 18. vii. 2002 (A. Cognato) (3); Loei, Phu Kradueng NP, Koke Hin Ngam, 16 ° 51.817 ' N, 101 ° 50.704 ' E, 270 m, pan trap, 10 – 11. viii. 2006 (S. Khonglasae) (1); Phu Ruea NP, office, 17 ° 28.805 ' N, 101 ° 21.242 ' E, 870 m, MT, 12 – 19. vii. 2006 (P. Tamtip) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, ex durian branch, 1. iii. 2010 (W. Sittichaya) (2); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 29. vii – 5. viii., 22 – 29. xii. 2008 (U-prai, K.) (2); as previous except: Pan trap, 11 – 12. vii., 25 – 26. vii. 2008 (2); Nan, Doi Phu Kha NP, Office 15, 19 ° 12.133 ' N, 101 ° 4.756 ' E, 1310 m, MT, 8 – 15. xii. 2007 (Charoen & Nikom) (1); Phetchabun, Khao Kho NP, View point at Klump stream, 16 ° 39.12 ' N, 101 ° 7.81 ' E, 246 m, pan trap, 9 – 10. ix. 2006 (S. Chachumnan & S. Singtong) (1); Sakhon Nakhon, Phu Phan NP, nr house no. 1567, 16 ° 48.628 ' N, 103 ° 53.591 ' E, 522 m, dry evergreen [forest], pan traps, 9 – 10. vi. 2007 (W. Kongnara) (1); Songkhla, Ratthaphum distr., ex durian branch, 13. ix. 2009 (W. Sittichaya) (5); Suphanburi, Pu Toei NP, Huai Mongpae / stream, 14 ° 56.981 ' N, 99 ° 26.733 ' E, 300 m, MT, 1 – 8. viii. 2008 (Saunbua, L.) (2); as previous except: 14 ° 58.4 ' N, 99 ° 26.017 ' E, 763 m, Pinus merkusii forest, MT, 1 – 7. ix. 2008 (Wangkum, P.) (1); Surat Thani, Khao Sok NP, ex jackfruit branch, 24. iii. 2006 (J. Hulcr et al.) (1); Khlong Phanom NP, 23. ii. 2012 (R. A. Beaver) (2); Trang, Khao Chong Nature Educ. Centre, lowland trop. rain forest, 21 – 24. vii. 1996 (R. A. Beaver) (1). Other distribution: From the Indian subcontinent throughout Southeast Asia, extending North to Taiwan and Japan (Ryukyu Is.), and East to New Guinea, Australia and the Pacific islands. Imported to and established in eastern and western North America (Haack 2006, Rabaglia et al. 2006), and other areas, including Israel, Madagascar and Panama. (4) Taxonomy: There have recently been intensive studies of this species which appears to comprise more than one sibling species, indistinguishable morphologically, but with clearly distinct DNA and different species of ambrosia fungi (Eskalen et al. 2013, Freeman et al. 2013). Biology: Highly polyphagous (Browne 1961 a). Various aspects of the biology of the species are described by Kalshoven (1958), Browne (1961 a), Sivapalan (1975, 1977), Walgama and Zalucki (2006) and others. The species is well-known as a pest of tea plantations in Sri Lanka and southern India, and can become a pest of fruit and other plantation trees (e. g. Hill 1983, Mendel et al. 2012, Eskalen et al. 2013). Illustrations: P (e. g. Atkinson 2014, Hulcr 2013, PaDIL 2014); D (Nunberg 1959 as Xyleborus fornicatus, Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDFFFAEFF41349769500E70.taxon	description	Thai distribution: S: Nakhon Sri Thammarat. New to Thailand. New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. ii. 2010 (W. Sittichaya) (1). Other distribution: Australia, India (Andaman & Nicobar Is.), Indonesia (Java, Maluku, Sulawesi, Sumatera, Sumbawa), Malaysia (E.), New Guinea, Philippines, Solomon Is., Taiwan. Intercepted in Japan from timber imported from the region. (4) Biology: Polyphagous (Kalshoven 1959). The gallery system is simply forked in one transverse plane. Kalshoven (1959) gives details of brood sizes at various stages of development of the gallery system. Illustrations: P (Hulcr 2013); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDFFFAEFF4136A769090A5B.taxon	description	New records: Chanthaburi, Khao Khitchakut NP, 50 m NE / Prabaht Unit, 12 ° 48.779 ' N, 102 ° 9.181 ' E, 107 m, MT, 18 – 25. viii. 2008 (Suthida & Charoenchai) (1); as previous except: Khao Prabaht peak / 150 m S of forest base, 12 ° 50.45 ' N, 102 ° 9.81 ' E, 875 m, 20 – 27. ii. 2009 (1); Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 30. ix – 1. x .. 1 – 2. x., 4 – 5. x., 5 – 6. x. 2007 (Songkran & Apichart) (8); as previous except: Pha Tang unit, 19 ° 24.978 ' N, 98 ° 54.886 ' E, 526 m, MT, 14 – 21. x. 2007 (1); Doi Chiang Dao, 13. vii. 2002 (A. Cognato) (12); Chumphon, Pha To env., 9 o 48 ' N, 98 o 47 ' E, 1 – 21. iii. 1998 (K. Majer) (1); Thung Tako Distr., 10 ° 0 7 ' 30.0 '' N, 99 ° 03 ' 48.0 '' E, 23 m, ex durian branch, 1. x. 2009 (W. Sittichaya) (3); Mae Hong Son, Namtok Mae Surin NP, Haad Saen / Huai Fai Kor reservoir, 19 ° 20.857 ' N, 97 ° 59.123 ' E, MT, 20 – 27. i. 2008 (Kamkoon, A.) (1); as previous except: Nature trail, 19 ° 20.616 ' N, 97 ° 59.3 ' E, 334 m, 6 – 23. ix. 2007 (A. Kamkhun) (1); Nakhon Sri Thammarat, Khao Luang, Kiriwong, 8 o 27 ' N, 99 o 44 ' E, 1 – 6. iv. 1997 (J. Kolibáč) (1); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, various dates from 8. vii – 30. ix. 2008 (U-prai, K.) (11); as previous except: pan trap, 26 – 30. vii. 2008 (5); Phetchabun, Nam Nao NP, 16 ° 44.387 ' N, 101 ° 34.531 ' E, 838 m, evergreen forest, MT, 27. xi – 4. xii. 2006 (N. Hongyothee) (1). Other distribution: From the Indian subcontinent, southern China and Taiwan through southeast Asia and Indonesia to the Philippines, New Guinea and Solomon Is. Imported to and established in U. S. A (Florida, Georgia, Hawai’i). Frequently intercepted in Japan in timber imported from the region. (4) Biology: Polyphagous (Beeson 1930, Browne 1961 a, Beaver & Liu 2010). The biology and gallery system have been described by Beeson (1930), Browne (1961 a) and Kalshoven (1959). The gallery system has a few branch tunnels in one transverse plane without brood chambers. Illustrations: P (Atkinson 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDFFFAFFF41328E69900C60.taxon	description	Other distribution: Indonesia (Java). (3) Taxonomy: The species is listed by Wood and Bright (1992) in Xyleborus, but it has the characters of Euwallacea Hopkins (see Hulcr & Cognato 2010 a), and is here transferred to that genus. Biology: Recorded from Schefflera (Araliaceae) by Kalshoven (1959).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDEFFAFFF41349769C309D8.taxon	description	New records: Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, durian plantation, EtOH trap, 01. xii. 2009 (W. Sittichaya) (1); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iv. 2010 (W. Sittichaya) (1). Other distribution: ‘ Borneo’, Indonesia (Java, Sumatera), Malaysia (E. & W.). The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (3) Taxonomy: Wood (1989) synonymised this species with the Afrotropical species, Euwallacea xanthopus (Eichhoff). In view of the discovery of sibling species in the closely related species, Euwallacea fornicatus (see above), and the presence of small morphological differences, it seems advisable to keep the species separate at present. E. semirudis differs from E. xanthopus in the following characters (E. semirudis characters given first): mean length 2.95 mm, range 2.80 – 3.15 mm vs mean 2.65 mm, range 2.40 – 2.90 mm; elytral declivity somewhat flattened and matt vs evenly convex and shining; declivital striae 1 and 2 weakly impressed vs declivital striae 1 and 2 not impressed; declivital interstriae 1 – 3 usually lacking hairs except at the top of the declivity, and with granules irregularly spaced vs declivital interstriae each with a regularly spaced row of granules bearing hairs extending to apex. Biology: Polyphagous (Browne 1961 a). The gallery system resembles that of E. interjectus (see above) in larger stems. In smaller stems, the initial gallery is circumferential, and the brood develop in one or two longitudinal branches (Browne 1961 a). Illustrations: D (Nunberg 1959 as Xyleborus sereinuus Eggers).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDEFFAFFF41300F6E4F0BCD.taxon	description	New records: Chiang Mai, Doi Pui, Chang Khian Highl. Res. Stn, ex Mangifera indica, 21. vi. 2013 (S. Buranapanichpan) (2); Phetchabun, Nam Nao NP, 16 – 17. vii. 2005 (J. Hulcr et al.) (1). Other distribution: China (Xizang), India (Andaman Is., Assam, Meghalaya, Nagaland, Sikkim, W. Bengal), Indonesia (Kalimantan), Myanmar. Intercepted in Japan in timber from Indonesia and Myanmar. The species also occurs in Laos and Nepal (R. A. Beaver, unpublished records). (2) Biology: Polyphagous (Maiti & Saha 2004). The gallery system has not been described. Illustrations: D (Nunberg 1959 as Xyleborus velatus, Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDEFFACFF4133FB6B330F38.taxon	description	New record: Chiang Mai, Doi Pui, 1400 m, 6 – 10. vi. 2005 (W. Puranasakul) (1). Other distribution: From India through Southeast Asia, Malaysia and Indonesia to New Guinea and Solomon Is. (4) Taxonomy: Beaver & Liu (2010) noted that E. barbatomorphus is probably a synonym of another species of Euwallacea. The holotype of E. wallacei (Natural History Museum, London) from New Guinea has been compared to specimens in the senior author’s collection from New Guinea, Sumatera and Taiwan, and some of these specimens to a syntype of E. barbatomorphus (Naturhistorisches Museum, Wien). There can be no doubt that E. barbatomorphus falls within the range of morphological variation of E. wallacei, and is here synonymised with that species. Biology: Polyphagous (Maiti & Saha 2004). The gallery system does not appear to have been described, but probably resembles that of E. interjectus (see above). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013, PaDIL 2014); D (Nunberg 1959 as Xyleborus wallacei, Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDDFFACFF41376F68660957.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, EtOH trap, 1. iii. 2010 (W. Sittichaya) (1). Other distribution: Indonesia (Sumatera), Malaysia (E. & W.), Philippines. Intercepted in Japan in timber from the region. (3) Taxonomy: The species is listed in Wood and Bright (1992) under Xyleborus, but has the morphological characters of Fortiborus (Hulcr & Cognato 2010), and is here transferred to that genus. It is closely related to Fortiborus major (Stebbing). Biology: All host records (except one) are from trees in the family Dipterocarpaceae, and the species, like others in the genus, is evidently closely associated with that family. Illustrations: P (Nobuchi 1978).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDDFFACFF4131826E200BEA.taxon	description	New record: Phangnga, Takuapa distr., 10 km N Khao Lak, Ton Chongfa waterfall, 8 o 38.722 ' N, 98 o 17.027 ' E, 29. viii. 2010 (A. Skale) (1). Other distribution: India (Andaman Is., Assam, W. Bengal), Indonesia (Sumatera), Malaysia (E. & W.), Myanmar, Papua New Guinea. Intercepted in Japan in timber imported from the region. (4) Taxonomy: This species was designated as the type species of their new genus Fortiborus by Hulcr and Cognato (2010). Biology: Closely associated with Dipterocarpaceae (Browne 1961 a). There are records of single specimens taken from three other families (Ohno 1990), but they may not have been breeding. The regularly branched gallery system lies in one transverse plane and is without brood chambers. The larvae pupate at the ends of the galleries (Browne 1961 a). Illustrations: P (Hulcr 2013); D (Nunberg 1959, Maiti & Saha as Xyleborus major).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDDFFADFF41321C6E540CF0.taxon	description	Xyleborus pseudopilifer Schedl. Synonymy: Hulcr & Cognato, 2010: 18. Thai distribution: (unspecified southern province) (Sittichaya et al. 2012, as F. pseudopilifer); S: Nakhon Sri Thammarat. New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iv. 2010 (W. Sittichaya) (1). Other distribution: Borneo, Indonesia (Sumatera), Malaysia (E. & W.), Papua New Guinea, Philippines, Vietnam. Intercepted in Japan and Korea from timber imported from the region. (3) Biology: Closely associated with Dipterocarpaceae (Browne 1961 a). Single specimens have been recorded from several other families (Ohno 1990), but they may not have been breeding. The gallery system resembles that of F. major (see above). Illustrations: P (Hulcr 2013); D (Nunberg 1982 as Xyleborus pseudopilifer).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDCFFADFF4137276BDC0975.taxon	description	New records: Chiang Mai, Doi Chiang Dao WS, Headquarters, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 549 m, MT, 3 – 10. iii., 10 – 17. iii. 2008 (Songkran & Apichart) (3); Surat Thani, Khao Sok NP, Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, MT, 14 – 21. x. 2008 (Pongphan) (1). Other distribution: Brunei Darussalam, China (Fujian, Xizang), India (Assam, West Bengal), Indonesia (Java, Kalimantan, Sumatera), Malaysia (E. & W.), Myanmar, Taiwan, Vietnam. The species also occurs in Laos (R. A. Beaver, unpublished records). (4) Biology: Polyphagous (Beaver 2010). The species, like others in the genus, breeds in rather small stems despite its bulky habitus (Browne 1961 a, Kalshoven 1959). The gallery system usually has a circumferential gallery, from which extend one to several longitudinal galleries in which the larvae develop (Beaver 2010). Illustrations: P (Beaver 2010); D (Nunberg 1982 as Xyleborus comans, Maiti & Saha 2004 as Hadrodemius metacomans (Eggers).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDCFFADFF4131A3698F0A5D.taxon	description	New records: Nakhon Nayok, Khao Yai NP, Lam Takong viewpoint, 14 ° 25.82 ' N, 101 ° 23.754 ' E, 744 m, MT, 12 – 19. x. 2006 (W. Sook-kho) (1); as previous except: 26. x – 2. xi. 2006 (P. Sandao) (1); as previous except: Khao Keow spirit house, 14 ° 22.96 ' N, 101 ° 23.253 ' E, 750 m, pan trap, 11 – 12. ix. 2006 (W. Sook-kho) (1); Nakhon Ratchasima, Khao Yai NP, Dong Suer Paan, 14 ° 27.511 ' N, 101 ° 22.408 ' E, 760 m, moist evergreen forest, MT, 5 – 12. xii. 2006 (P. Sandow) (2); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iv. 2009 (W. Sittichaya) (1); Sa Kaeo, Pang Sida NP, ex small branches, 25. vi. 2005 (A. Cognato et al.) (3). Other distribution: Brunei Darussalam, India (Kerala), Indonesia (Java, Kalimantan, Sumatera), Malaysia (E. & W.), Myanmar, Papua New Guinea, Philippines, Solomon Is., Taiwan, Vietnam. The species also occurs in Laos (R. A. Beaver, unpublished records). (4) Biology: Polyphagous (Beaver 2010). Kalshoven (1959) and Browne (1961 a) describe the biology and gallery system, which resembles that of H. comans (see above). Illustrations: P (Beaver 2010, Hulcr & Cognato 2013, PaDIL 2014).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDCFFAAFF41328B6F020F35.taxon	description	New records: Chiang Mai, Doi Phahompok NP, Headquarters, 19 ° 57.961 ' N, 99 ° 9.355 ' E, 569 m, MT, 14 – 21. ii. 2008 (Seesom K.) (1); Phetchabun, Thung Salaeng Luang NP, Gang Wang Nam Yen, 16 ° 36.587 ' N, 100 ° 53.395 ' E, 753 m, MT, 17 – 24. v. 2007 (P. Pranee & Sathit) (1). Other distribution: China (Fujian, Xizang), India (Assam, W. Bengal), Myanmar. The species also occurs in China (Yunnan) and Laos (R. A. Beaver, unpublished records). This species has a more northerly distribution than the other two species in the genus. (2) Biology: Polyphagous (Beaver 2010). The gallery system (Beeson 1930) resembles that of the other species in the genus. Illustrations: P (Beaver 2010); D (Nunberg 1959 as Xyleborus artecomans Schedl, Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDBFFAAFF41375A6846097F.taxon	description	New records: Chumphon, Pha To, env. 9 o 48 ' N, 98 o 47 ' E, 1 – 21. iii. 1998 (K. Majer) (4); Prachuab Khiri Khan, Kui Buri NP, 27. iii. 2006 (S. Stevens et al.) (4); Tak, Doi Mussoi, 16 o 45.309 ' N, 98 o 55.404 ' E, 800 m, v. 2010 (T. Ihle) (1). Other distribution: Indonesia (Java), Malaysia (W.), Philippines, Vietnam. (3) Taxonomy: The species was transferred from Xyleborus to Ambrosiodmus by Wood and Bright (1992). However, it has the morphological characters of the genus Immanus Hulcr and Cognato (2013), and is here transferred to that genus. Biology: Recorded from Castanospermum (Leguminosae) only. The gallery system is branched and lies in one transverse plane (Kalshoven 1959). Illustrations: P (Hulcr 2012).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDBFFAAFF4131A068540A4C.taxon	description	New records: More than 150 specimens collected in all regions of the country except the North-East. One hundred specimens were collected in Malaise and pan traps in the Doi Chiang Dao NP in Chiang Mai by the participants in the Tiger project. Other distribution: ‘ Borneo’, India (Andaman Is., W. Bengal), Indonesia (Java, Maluku, Sumatra), Japan, Malaysia (E. & W.), Myanmar, New Guinea, Philippines. Intercepted in Japan and New Zealand in timber imported from the region. The species also occurs in Taiwan and Vietnam (R. A. Beaver, unpublished records). (4) Biology: Polyphagous (Browne 1961 a). The species attacks large logs, small stems down to about 3 cm diameter, and lianes. The gallery system is irregularly branched, usually more or less in one transverse plane, and without brood chambers. Surface galleries may be present between the bark and wood in larger stems (Beeson 1930, Browne 1961 a). Beaver and Browne (1979) suggest that it may be attracted to sappy stems. Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013); D (Nunberg 1982 as Xyleborus sordicauda, Maiti & Saha 2004 as Leptoxyleborus concisus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDBFFABFF41327B6918092A.taxon	description	New records: Chaiyaphum, Pa Hin Ngam NP, Thepana waterfall, 15 ° 38.948 ' N, 101 ° 25.625 ' E, 604 m, savannah, pan trap, 22 – 23. x., 23 – 24. x. 2006 (K. Sa-nog & B. Adnafai) (2); Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 3 – 4. x. 2007, (Songkran & Apichart) (1); Doi Phahompok NP, Headquarters, 19 ° 57.961 ' N, 99 ° 9.355 ' E, 569 m, pan trap, 8 – 9. ii., 13 – 14. ii. 2008 (Seesom, K.) (2); Doi Pui, 1400 m, EtOH trap, 27. vi. – 1. vii. 2005 (W. Puranasakul) (2); Maerim, MT in garden, 16. xi., 13. xii. 2002, 18. xi. 2003, 20. i. 2004 (R. A. Beaver) (4); Nakhon Nayok, Khao Yai NP, nr reservoir, 14 ° 27.119 ' N, 101 ° 21.482 ' E, 699 m, moist evergreen forest, MT, 12 – 19. xi. 2006 (W. Sookkho) (1); as previous except: San Jao Khaokaew, 14 ° 22.96 ' N, 101 ° 23.253 ' E, 750 m, pan trap, 7 – 8. iii. 2007 (P. Sandao) (1); as previous except: nr Training Center 2, 14 ° 24.515 ' N, 101 ° 22.432 ' E, MT, 5 – 12. ii. 2007 (1); as previous except: Lam Takong viewpoint, 14 ° 25.565 ' N, 101 ° 23.442 ' E, 726 m, 12 – 19. x. 2006, 19 – 26. iv. 2007 (W. Sook-kho) (2); Nakhon Ratchasima, Khao Yai NP, Dan Chang, 14 ° 28.285 ' N, 101 ° 22.57 ' E, 751 m, moist evergreen forest, pan trap, 7 – 8. xii. 2006 (W. Sook-kho) (1); Phetchabun, Nam Nao NP, 16 ° 44.387 ' N, 101 ° 34.531 ' E, 838 m, evergreen forest, pan trap, 20 – 21. xi. 2006 (N. Hongyothee) (1); as previous except: check point, 16 ° 43.695 ' N, 101 ° 33.797 ' E, 921 m, 26 – 27. x., 28 – 29. x. 2006, 3 – 4. iii. 2007 (3); as previous except: 22 – 29. iii. 2007, MT (1); Thung Salaeng Luang NP, Kaeng Wang Nam Yen, 16 ° 36.587 ' N, 100 ° 53.395 ' E, MT, 16 – 22. xi. 2006 [no collector] (1); Sakhon Nakhon, Phu Phan NP, 1567 station, 16 ° 48.627 ' N, 103 ° 53.511 ' E, 512 m, dry evergreen forest, MT, 3 – 9. xii. 2006 (S. Kongnara) (1). Other distribution: India (Assam, W. Bengal), Bangladesh, Malaysia (W.), Sri Lanka, Taiwan, Vietnam. (2) Taxonomy: The genus Microperus Wood was placed in synonymy with Coptodryas in Wood and Bright (1992). The genus was reinstated by Hulcr et al. (2007 a). Biology: Polyphagous (Maiti & Saha 2004). Illustrations: D (Maiti & Saha 2004 as Coptodryas alpha).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDAFFABFF41315D6B960B66.taxon	description	Thai distribution: S: (unspecified southern province) (Sittichaya et al. 2012); Chumphon, Nakhon Sri Thammarat. New records: Chumphon, Sawi distr., 10 ° 19 ' 42.0 '' N, 99 ° 01 ' 09.0 '' E, 103 m, durian plantation, EtOH trap, 1. xii. 2010 (W. Sittichaya) (7); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, EtOH trap, 1. x. 2010 (W. Sittichaya) (1). Other distribution: Bhutan, Indonesia (Java, Sumatera), Malaysia (W.), Papua New Guinea, Solomon Is. Intercepted in Japan in timber imported from New Guinea and the Solomon Is. The species also occurs in East Malaysia (Sabah) (R. A. Beaver, unpublished records). (4) Biology: Recorded from five different families of trees, and probably polyphagous. The gallery system is branched with a brood chamber in the transverse plane (Browne 1961 a), as in some other species of Microperus. Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFDAFFA8FF41339069570C8D.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iii. 2010 (W. Sittichaya) (1). This confirms the presence of the species in Thailand. Other distribution: Indonesia (Java, Sumatera), Malaysia (E. & W.), New Guinea, Philippines, Solomon Is. Intercepted in Japan in timber imported from the region. (3) Biology: Polyphagous. The gallery system (Browne 1961 a) appears to resemble that of M. corporaali (see above). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD9FFA8FF4134BB6ECC09BB.taxon	description	(Figs 23 – 24)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD9FFA8FF4134BB6ECC09BB.taxon	description	New records: Chaiyaphum, Pa Hin Ngam NP, 15 ° 38.132 ' N, 101 ° 23.922 ' E, 698 m, Ecotone between mixed deciduous / dry dipterocarp [forest], pan trap, 11 – 12. viii. 2006 (K. Sa-nog & B. Adnafai) (1); Chiang Mai, Doi Pui, 1400 m, vii. 2005 (W. Puranasakul) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. i. 2010 (W. Sittichaya) (1); Namtok Yong NP, TV aerial, 8 ° 14.262 ' N, 99 ° 48.289 ' E, 966 m, MT, 8 – 15. ix. 2008 (Paiboon) (1); Suphanburi, Pu Toei NP, Huai Mongpae / stream, 14 ° 56.981 ' N, 99 ° 26.733 ' E, 300 m, MT, 1 – 8. viii. 2008 (Saunbua, L.) (1); Surat Thani, Bhan Nasan Distr., 08 ° 46 ' 47.0 '' N, 99 ° 22 ' 46.0 '' E, 96 m, durian plantation, EtOH trap, 1. ix. 2010 (W. Sittichaya) (1). Other distribution: Malaysia (E. & W.). Intercepted in Japan in timber imported from E. Malaysia (Sarawak). (3) Taxonomy: The species is listed by Wood & Bright (1992) under Coptodryas, but has the morphological characters of Microperus (Hulcr et al. 2007 a), and is here transferred to that genus. Biology: Recorded from five genera in five different families of trees, and presumably polyphagous. The gallery system (Browne 1961 a) is irregularly branched in the horizontal plane with several small brood chambers elongated in the longitudinal plane. Browne (1961 a) suggests that the female lays eggs in clusters over a considerable period, the offspring from each cluster occupying a separate brood chamber.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD9FFA8FF4131EE6F170A3F.taxon	description	(Figs 25 – 26)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD9FFA8FF4131EE6F170A3F.taxon	description	Thai distribution: C: Chanthaburi; S: Chumphon, Nakhon Sri Thammarat, Surat Thani. New to Thailand. New records: Chanthaburi, Khao Khitchakut NP, Chang-sae waterfall, 12 ° 49.33 ' N, 102 ° 9.4 ' E, 290 m, MT, 20 – 27. xi. 2008 (Suthida & Charoenchai) (1); Chumphon, Sawi distr., 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, durian plantation, EtOH trap, 1. xi. 2010 (W. Sittichaya) (3); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. v. 2010 (W. Sittichaya) (2); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 26. viii – 2. ix. 2008 (U-prai, K.) (1); Surat Thani, Khao Sok NP, ex fallen tree, 23. ii. 2012 (R. A. Beaver) (4). Other distribution: Indonesia (Java), Malaysia (E. & W.). Intercepted in Japan in timber imported from East Malaysia (Sabah). The species also occurs in Brunei Darussalam and Indonesia (Sulawesi) (R. A. Beaver, unpublished records). (3) Biology: Polyphagous (Browne 1961 a). The gallery system resembles that of M. corporaali (see above).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD9FFA9FF41326A6E70090E.taxon	description	New records: Chiang Mai, Doi Inthanon NP, Vachiratharn Falls, 18 ° 32.311 ' N, 98 ° 36.048 ' E, 700 m, pan trap, 1 – 2. vii. 2006 (Y. Areeluck) (1); Doi Pui, 1400 m, EtOH trap, 27. ix. – 1. x. 2004 (W. Puranasakul) (3); as previous except: 18 – 25. vii. 2005 (1); Pong Yaeng NP, 900 m, ex hardwood branch, vii. 2005 (J. Hulcr et al.) (2); Loei, Phu Ruea NP, Hua Dong Tham Sun, 17 ° 29.54 ' N, 101 ° 20.995 ' E, 1130 m, MT, 19 – 26. xi. 2006 (P. Tumtip) (1); Mae Hong Son, Namtok Mae Surin NP, above Fai Kor reservoir, 19 ° 20.892 ' N, 97 ° 59.01 ' E, 294 m, pan trap, 13 – 14. xi. 2007 (M. Namadkum) (1); Nakhon Nayok, Khao Yai NP, Khao Keow spirit house, 14 ° 22.96 ' N, 101 ° 23.253 ' E, 750 m, pan trap, 9 – 10. ix. 2006 (W. Sook-kho) (1); as previous except: Valley at entrance of Huay Pak Chee, 14 ° 27.115 ' N, 101 ° 21.951 ' E, 733 m, pan trap, 13 – 14. xi. 2006 (P. Sandao) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. ii. 2011 (W. Sittichaya) (3); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, pan trap, 4 – 5. ix. 2008 (U-prai, K.) (1); Phetchabun, Nam Nao NP, 16 ° 44.387 ' N, 101 ° 34.531 ' E, 838 m, hill evergreen forest, pan traps, 29 – 30. v., 1 – 2. vi. 2007 (N. Hongyothi & L. Janteab) (6); as previous except: helicopter landing ground, 16 ° 43.156 ' N, 101 ° 35.118 ' E, 890 m, pan trap, 4 – 5. vii., 7 – 8. vii., 8 – 9. vii. 2006 (N. Hongyothi) (4); as previous except: forest check point, 16 ° 43.695 ' N, 101 ° 33.797 ' E, 921 m, pan trap, 23 – 24. x., 25 – 26. x. 2006 (3); Phitsanulok, Thung Salaeng Luang NP, 16 ° 50.217 ' N, 100 ° 52.541 ' E, 580 m, dry evergreen [forest], MT, 1 – 8. ix. 2006 (P. Pranee) (1); Surat Thani, Bhan Nasan Distr., 08 ° 47 ' 25.0 '' N, 99 ° 24 ' 54.0 '' E, 52 m, durian plantation, EtOH trap, 1. i. 2010 (W. Sittichaya) (1). Other distribution: Bangladesh, India (Andaman Is., Assam, W. Bengal), Indonesia (Maluku), Japan, Malaysia (E. & W.), Myanmar, Papua New Guinea, Solomon Is. (4) Biology: Polyphagous, possibly with some preference for Dipterocarpaceae (Beaver & Liu 2010). The gallery system resembles that of M. nudibrevis (see above) (Browne 1961 a). Illustrations: P (Hulcr 2013); D (Maiti & Saha 2004 as Coptodryas perparvus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD8FFA9FF413138684608D6.taxon	description	Thai distribution: N: Chiang Mai (Nunberg & Chujo, 1961: 358 as Xyleborus pometianus). There are no later records from Thailand. Other distribution: Malaysia (E. & W.), Papua New Guinea, Philippines. Intercepted in Japan in timber from the Philippines. (3) Biology: Browne (1961 a) suggests an association with Sapindaceae, but there are too few host records available to be at all sure of this. Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD8FFA6FF41330068460C60.taxon	description	New records: Chiang Mai, Doi Pui, 1400 m, FIT, 29. viii. – 2. ix. 2005 (W. Puranasakul) (1); Maerim, FIT, 6. xii. 2002 (R. A. Beaver) (1); Queen Sirikit Botanic Garden, 18 o 53 ' 25.4 '' N, 98 o 51 ' 23.1 '' E, 701 m, semievergreen forest, FIT, 13 – 15. xi. 2006 (A. Aksornprom, R. Sawkord) (1); Chumphon, Sawi distr., 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, EtOH trap, durian plantn, 1. xii. 2009 (W. Sittichaya) (1); Nakhon Sri Thammarat, Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, pan trap, 5 – 6. ix. 2008 (U-prai, K.) (1); Nan, Tham Sa Koen NP, 19 o 23 ' N, 100 o 38 ' E, 29 – 30. xi. 2003 (M. Földvári) (1); Phetchaburi, Kaeng Krachan NP, Pa La-U / bus parking, 12 ° 32.125 ' N, 99 ° 28.283 ' E, MT, 18 – 25. vii. 2008 (Akaradate & Thongbai) (1). Other distribution: Bangladesh, ‘ Borneo’, China (Guizhou), India (Andaman Is., W. Bengal), Indonesia (Enggano, Java), Malaysia (E. & W.), Myanmar, New Guinea, Philippines. Intercepted in Japan in timber imported from the region (as Xyleborus tuberculosus). The species also occurs in Brunei Darussalam and Indonesia (Maluku, Sulawesi) (R. A. Beaver, unpublished records). (4) Biology: Polyphagous. The gallery system has not been described. Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD7FFA6FF41349769C90948.taxon	description	New records: Chaiyaphum, Tat Tone NP, Lumpatao head water, 15 ° 58.486 ' N, 102 ° 2.239 ' E, 270 m, dry evergreen [forest], pan trap, 6 – 7. ii. 2007 (T. Jaruphan & O. Budsawong) (1); Chiang Mai, Doi Pui, 1400 m, EtOH trap, 21. ii. – 14. iii. 2005 (W. Puranasakul) (1); Maerim, FIT, 19. vii. 2003 (R. A. Beaver) (1); Chumphon, Sawi distr., 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, durian plantation, EtOH trap, 1. iii. 2010 (W. Sittichaya) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, Durian plantation, EtOH trap, 1. xii. 2009 (W. Sittichaya) (2); Prachuab Khiri Khan, Kui Buri NP, ex ‘ krachid’, 27. iii. 2006 (S. Stephens et al.) (4); Songkhla, Ratthaphum distr., ex durian branch, 4. xi. 2008 (W. Sittichaya) (3); Surat Thani, Bhan Nasan Distr., 08 ° 46 ' 47.2 '' N, 99 ° 22 ' 46.2 '' E, 96 m, EtOH trap in durian plantn, 1. ii. 2010 (W. Sittichaya) (1). Other distribution: India (W. Bengal), Indonesia (Java), Malaysia (W.). The record from the Solomon Is. (Bigger 1988) may be a misidentification. The species also occurs in Nepal (R. A. Beaver, unpublished record). (4) Biology: The only recorded hosts are two species of Shorea (Dipterocarpaceae) (Beeson 1930, Browne 1961 a). The gallery system branches in three dimensions, and has brood chambers in the horizontal plane (Browne 1961 a). Illustrations: D (Maiti & Saha 2004 as Coptodryas undulatus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD7FFA6FF41317F6AB50AA6.taxon	description	Thai distribution: C: Kanchanaburi; N: Chiang Mai, Phetchabun; S: Nakhon Sri Thammarat, Surat Thani, Trang (Beaver 1999, as Euwallacea bicolor) New records: Chiang Mai, Doi Chiang Dao WS, Headquarters, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 1 – 3. viii. 2007 (S. Jugsu, A. Watwanich) (31); as previous except: Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan traps, 30. ix – 7. x. 2007 (Songkran & Apichart) (55); Kanchanaburi, 14 o 42 ' N. 98 o 52 ' E, 17. vii. 2002 (A. Cognato) (4); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iii. 2010 (W. Sittichaya) (1); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 19 – 26. viii. 2008 (U-prai, K.) (2); Phetchabun, Nam Nao NP, 16 – 17. vii. 2005 (J. Hulcr et al.) (1); Surat Thani, Khao Sok NP, Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, pan trap, 16 – 17. x. 2008 (Pongphan) (1). Other distribution: From India through Southeast Asia and Indonesia to Taiwan and Japan in the North, and to New Guinea and the Pacific islands in the East. Intercepted in Japan in imported timber. (4) Taxonomy: As considered by Hulcr and Cognato (2010, 2013), this is a very variable species morphologically, and its limits are not entirely clear. Molecular studies may indicate that several species are included. Biology: Polyphagous. The gallery system has a few branches more or less in one transverse plane with several small brood chambers extending longitudinally. Surface galleries between the phloem and sapwood may occur in thick-barked stems (Browne 1961 a). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013, PaDIL 2014); D (Maiti & Saha 2004 as Euwallacea bicolor).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD6FFA7FF41359B68460F50.taxon	description	Thai distribution: S: Nakhon Sri Thammarat, Surat Thani. New to Thailand. New records: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, ex branch, 15. vii. 2010 (W. Sittichaya) (1); Surat Thani, Khlong Phanom NP, ex log, 23. ii. 2012 (R. A. Beaver) (2). Other distribution: Indonesia (Java), Malaysia (E. & W.), New Guinea, Philippines. Records from Fiji are correctly referred to Planiculus bicolor (see above) (Beaver 1995 b). (3) Biology: Polyphagous. The gallery system is similar to that of P. bicolor (see above). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD6FFA7FF4137876B4709A8.taxon	description	(Figs 27 – 28)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD6FFA7FF4137876B4709A8.taxon	description	New records: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. xii. 2009 (W. Sittichaya) (1); Namtok Yong NP, Road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, 29. x – 5. xi. 2008 (Samnaokan, S.) (1). Other distribution: ‘ Borneo’, Indonesia (Sumatera), Malaysia (E.), Vietnam. The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (3) Taxonomy: The genus Pseudowebbia Browne was included as a synonym of Webbia Hopkins by Wood and Bright (1992), but the genus was reinstated by Hulcr et al. (2007 a). Biology: Recorded only from Vatica (Dipterocarpaceae) (Browne 1961 b). The gallery system has not been described.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD6FFA7FF4131DF68460BC7.taxon	description	New records: Chiang Mai, Doi Pui, 27. ix. – 1. x. 2004 (W. Puranasakul) (2); Queen Sirikit Botanical Garden, 18 o 53 ' 44.6 '' N, 98 o 51 ' 44.1 '' E, 647 m, MV light, 25. xi. 2006 (N. Likhittrakarn, R. Sawkord et al.) (1); as previous except: 18 o 53 ' 18.4 '' N, 98 o 51 ' 30.0 '' E, 793 m, semi-evergreen forest, MV & UV light, 30. x. 2006 (A. Rukkasikorn) (1). Other distribution: Vietnam. The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (2) Biology: Unknown. Illustrations: P (Hulcr 2012).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD6FFA4FF4133F268460C60.taxon	description	New record: Sakhon Nakhon, Phu Phan NP, house at 1567 station, 16 ° 48.628 ' N, 103 ° 53.591 ' E, 522 m, dry evergreen forest, MT, 3 – 9. xii. 2006 (S. Kongnara) (1). Other distribution: Indonesia (Sumatera), Malaysia (E. & W.), Papua New Guinea, Vietnam. (3) Biology: The species is associated only with trees of the family Dipterocarpaceae (Browne 1961 a). The gallery system consists of an unbranched radial entrance tunnel leading to a single large, narrow brood chamber, elongated in the longitudinal plane. Browne (1961 a) notes that broods tend to be small (from 8 – 18 individuals), and that the life cycle may be completed in 3 – 4 weeks. Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD5FFA4FF4134976957081F.taxon	description	New records: Chumphon, Sawi distr., 10 ° 19 ' 07.7 '' N, 99 ° 01 ' 40.2 '' E, 103 m, durian plantation, EtOH trap, 1. xi. 2009 (W. Sittichaya) (40); Thung Tako Distict, 10 ° 02 ' 41.9 '' N, 99 ° 01 ' 5.7 '' E, 86 m, durian plantation, EtOH trap, 1. xi. 2009 (W. Sittichaya) (27); Loei, Phu Ruea NP, office, 17 ° 28.805 ' N, 101 ° 21.242 ' E, 870 m, MT, 12 – 19. vii. 2006 (P. Tamtip) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, Durian plantation, EtOH trap, various dates from 01. xii. 2009 (W. Sittichaya) (4); Phetchabun, Nam Nao NP, Forest check point, 16 ° 43.687 ' N, 101 ° 33.754 ' E, 924 m, MT, 13 – 20. xi. 2006 (N. Hongyothi) (1); Sakhon Nakhon, Phu Phan NP, Nam Hom Waterfall, 17 ° 7.411 ' N, 104 ° 1.016 ' E, 347 m, MT, 25 – 31. iii. 2007 (S. Tongboonchai) (1); Suphanburi, Pu Toei NP, Huai Mongpae, 14 ° 56.985 ' N, 99 ° 26.78 ' E, 300 m, MT, 1 – 7. ix. 2008 (Wangkum, P.) (1); Surat Thani, Bhan Nasan Distr., 08 ° 48 ' 57.3 '' N, 99 ° 23 ' 52.2 '' E, 62 m, durian plantation, EtOH trap, 1. x. 2009 – 31. xii. 2010 (W. Sittichaya) (13). Other distribution: Indonesia (Maluku), Malaysia (E. & W.), New Guinea, Sri Lanka. Intercepted in Japan in timber from the region. The species also occurs in Brunei Darussalam, Laos and Vietnam (R. A. Beaver, unpublished records). (4) Taxonomy: Hulcr & Cognato (2013) erected the genus Stictodex to include this species and one other. Biology: Most host records are from the Dipterocarpaceae, but other tree families are also occasionally attacked (Browne 1961 a as Xyleborus decumans and X. tunggali). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD5FFA4FF41304A68650A56.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iv. 2010 (W. Sittichaya) (2). Other distribution: Malaysia (E. & W.). Intercepted in Japan in timber imported from East Malaysia. (3) Taxonomy: The species is listed under Coptoborus Hopkins by Wood and Bright (1992), but was transferred back to its original genus by Hulcr et al. (2007 a). Biology: Recorded from trees in three different families (Dipterocarpaceae, Myrtaceae and Sapotaceae). Probably polyphagous. The gallery systems of Streptocranus seem to be rather variable, with a few branches that may run horizontally or longitudinally, and may be irregularly widened, but without distinct brood chambers (Browne 1961 a). Illustrations: D (Browne 1949).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD5FFA5FF41328068460CA2.taxon	description	New record: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iv. 2010 (W. Sittichaya) (1). Other distribution: Indonesia (Java), Malaysia (E. & W.). (3) Biology: The only recorded host is Castanopsis (Fagaceae) (Browne 1961 a). Illustrations: P (Hulcr 2012).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD4FFA5FF4134D568650E9D.taxon	description	New records: Chiang Mai, Doi Chiang Dao WS, Headquarters, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 549 m, MT, 24 – 31. iii. 2008 (Songkran & Apichart) (1). Other distribution: Malaysia (W.). The species also occurs in Brunei Darussalam and East Malaysia (Sabah) (R. A. Beaver, unpublished records). (3) Taxonomy: The species is listed under Coptoborus Hopkins by Wood and Bright (1992), but was transferred back to its original genus by Hulcr et al. (2007 a). Biology: Recorded only from Eugenia (Myrtaceae) and Palaquium (Sapotaceae) (Browne 1961 a). Illustrations: D (Browne 1949).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD4FFA5FF4136CB680908AB.taxon	description	New record: Chiang Mai, Doi Chiang Dao WS, Pha Tang unit, 19 ° 24.978 ' N, 98 ° 54.886 ' E, 526 m, MT, 21 – 28. x. 2007 (Songkran & Apichart) (1). Other distribution: Indonesia (Java). The species also occurs in West Malaysia (R. A. Beaver, unpublished record). (3) Taxonomy: The species is listed under Coptoborus Hopkins by Wood and Bright (1992), but was transferred back to its original genus by Hulcr et al. (2007 a). Biology: Recorded from Actinophora (Tiliaceae), Mesua (Guttiferae) and Quercus (Fagaceae) (Kalshoven 1959). Probably polyphagous. Illustrations: D (Schedl 1939 a, b).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD4FFA2FF4130D569930DB5.taxon	description	Thai distribution: (unspecified southern province) (Sittichaya et al. 2012); S: Nakhon Sri Thammarat. New records: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 12. ii., 1. iv. 2010 (W. Sittichaya) (2); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, pan trap, 26 – 27. vii., 27 – 28. vii., 30 – 31. vii., 6 – 7. ix. 2008 (U-prai, K.) (9). Other distribution: From West Malaysia and Sumatera through Indonesia and the Philippines to New Guinea, Australia, Solomon Is. and Micronesia. Frequently intercepted in Japan in timber imported from the region. The species of Truncaudum Hulcr & Cognato have a distribution which is centred in New Guinea and neighbouring islands (Hulcr & Cognato 2010 a), and T. agnatum has probably spread westwards across Wallace’s line. (3) Biology: Polyphagous (Browne 1961 a, Ohno 1990). The species is not size-selective, and will attack newly sawn timber as well as logs. The gallery system has a few branches, usually in the transverse plane, and at least one brood chamber in the longitudinal plane (Browne 1961 a). Illustrations: P (Hulcr 2013); D (Nunberg 1978 as Xyleborus agnatus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD3FFA2FF4135E3683E0E9B.taxon	description	New records: Chiang Mai, Doi Pui, 1400 m, EtOH trap, 21 – 25. iii., 6 – 27. vii. 2005 (W. Puranasakul) (2); Nakhon Sri Thammarat, Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 5 – 12. viii. 2008 (U-prai, K.) (1). Other distribution: Indonesia (Java), Japan, Korea, Malaysia (E. & W.), Solomon Is, Taiwan. The species also occurs in Brunei Darussalam and China (Yunnan) (R. A. Beaver, unpublished records). This species has an unusual distribution and is difficult to place in one of the faunal elements used in this paper. It is tentatively assigned to the Malaysian element. Most locality records are from that area, although the species was originally described from Japan. (3) Taxonomy: As a result of an error, this species was listed as a new combination under Planiculus (Beaver & Liu 2010). It should have been transferred to Wallacellus Hulcr & Cognato from Xyleborus. It is closely similar to Wallacellus piceus (see below), from which it differs primarily in the proportions of the elytra, which are relatively shorter in W. minutus. Biology: Polyphagous (Browne 1961 a, Beaver & Browne 1979). The gallery system has irregularly branched tunnels in one transverse plane. The records from Japan and Korea indicate that the species can survive in a cold temperate climate as well as in the tropics.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD3FFA2FF4136CE6B260B83.taxon	description	Thai distribution: N: Chiang Mai, Phetchabun; S: Nakhon Sri Thammarat. New to Thailand. New records: Chiang Mai, Doi Chiangdao NP, Pha Tang substation, 19 ° 24.978 ' N, 98 ° 54.886 ' E, 526 m, MT, 14 – 21. viii. 2007 (S. Jugsu, A. Watwanich) (1); Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 5 – 6. x. 2007 (Songkran & Apichart) (1); Doi Chiang Dao, 13. vii. 2002 (A. Cognato) (3); Nakhon Sri Thammarat, Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 8 – 15. vii., 15 – 22. vii., 2 – 29. vii. 2008 (Uprai, K.) (6); as previous except: pan trap, 11 – 12. vii., 27 – 28. vii. 2008 (7); Phetchabun, Khao Kho NP, office, 16 ° 39.55 ' N, 101 ° 8.123 ' E, pan trap, 12. vii. 2006 (S. Chatchumnan & S. Singtong) (1) Other distribution: The species has a very wide distribution in the Oriental and Australasian regions, extending from India in the West to the Pacific islands in the East, and from Korea in the North to Australia in the South. It also occurs in the Afrotropical region and the Seychelles. (6) Biology: Polyphagous (Browne 1961 a, Schedl 1963). The gallery system branches in three dimensions and may penetrate deeply into the wood. It has no brood chambers (Browne 1961 a). The species has some potential as a pest because of its deeply-penetrating galleries and very wide host range (Browne 1961 a, Schedl 1963). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013, PaDIL 2014 as Euwallacea piceus); D (Maiti & Saha 2004 as E. piceus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD3FFA3FF4133AD6B420F38.taxon	description	Thai distribution: C: Chanthaburi, Kanchanaburi, Phetchaburi, Prachuab Khiri Khan, Rayong, Suphanburi; N: Chiang Mai (Nunberg & Chujo 1961, as Xyleborus parvulus Eichhoff, Beaver & Browne 1975 as Xyleborus similis), Mae Hong Son, Tak; N-E: Chaiyaphum, Khon Kaen, Loei, Nong Bua Lamphu, Nakhon Ratchasima, Sakhon Nakhon; S: Chumphon (Sittichaya & Beaver 2009 as Xyleborus similis), Nakhon Sri Thammarat, Phangnga, Ranong (Murphy & Meepol 1990 as Xyleborus similis), Surat Thani. New records: More than 180 specimens collected in all parts of the country. Other distribution: The species has a very wide distribution in the Oriental and Australasian regions, extending from India in the West to the Pacific islands in the East, and from Taiwan in the North to Australia in the South. It also occurs in the Afrotropical region and the Indian Ocean islands. It is established but apparently not invasive in U. S. A. (Haack 2006). (6) Biology: Strongly polyphagous (Browne 1961 a, Schedl 1963). The biology and gallery system is described by Browne (1961 a, 1968), Kalshoven (1964) and Schedl (1963). Browne (1968) notes that it may bore into healthy trees through bark wounds, facilitating the entry of pathogenic fungi. In Thailand, it attacks rubberwood (Hevea brasiliensis) (Kangkamanee et al. 2011), and stressed mango (Mangifera indica) and cashew (Anacardium occidentale) trees (Sittichaya 2012). Illustrations: P (Hulcr 2013, PaDIL 2014 as Xyleborus similis); D (Nunberg 1959, Maiti & Saha 2004 both as X. similis).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD2FFA3FF41376F6EB40957.taxon	description	(Figs 29 – 30)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD2FFA3FF41376F6EB40957.taxon	description	New records: Chumphon, Sawi distr., 10 ° 16 ' 55.0 '' N, 99 ° 01 ' 17.2 '' E, 67 m, durian plantation, EtOH trap, 31. iii. 2010 (W. Sittichaya) (1); Thung Tako Distr., 10 ° 0 7 ' 30.0 '' N, 99 ° 03 ' 48.0 '' E, 23 m, durian plantation, EtOH trap, 1. v. 2010 (W. Sittichaya) (1). Other distribution: Malaysia (E. & W.). (3) Biology: Associated with Dipterocarpaceae, like the majority of Webbia Hopkins. The gallery system, as in all species of Webbia, consists of a radial entrance tunnel leading to a narrow brood chamber in the longitudinal plane, in which the larvae develop. Brood size can be as high as 120 in a gallery (Beaver & Browne 1979).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD2FFA3FF4131826B720BD3.taxon	description	(Figs 31 – 32)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD2FFA3FF4131826B720BD3.taxon	distribution	Thai distribution: C: Trat; N: Chiang Mai (Beaver & Browne 1975), Phetchabun; N-E: Chaiyaphum; S: (unspecified southern province) (Sittichaya et al. 2012), Chumphon, Nakhon Sri Thammarat.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD2FFA3FF4131826B720BD3.taxon	materials_examined	New records: Chaiyaphum, Phu Khieo WS, vii. 2005 (J. Hulcr et al.) (3); Chiang Mai, Chiang Mai Univ., 300 m, EtOH trap, 21. ii. – 14. iii., 14. iii. – 4. iv. 2005 (W. Puranasakul) (2): Chumphon, Muang Distr., 10 o 25 ' 45 '' N, 99 o 03 ' 38 '' E, EtOH trap in durian plantation, 1. ix. 2009 (W. Sittichaya) (1); Thung Tako Distict, 10 ° 0 7 ' 30.0 '' N, 99 ° 03 ' 48.0 '' E, 23 m, durian plantation, EtOH trap, 1. x. 2009 (W. Sittichaya) (2); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, EtOH trap, 1. xi. 2009 (1); Phetchabun, Thung Salaeng Luang NP, Gang Wang Nam Yen, 16 ° 35.789 ' N, 100 ° 52.769 ' E, 732 m, pine forest, MT, 29. vi – 6. vii. 2007 (Pongpitak & Sathit) (1); Trat, 42 km E Trat, nr beach, ex Eugenia, 13. iv. 1994 (R. A. Beaver) (4). Other distribution: Malaysia (E. & W.). (3)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD2FFA3FF4131826B720BD3.taxon	biology_ecology	Biology: Associated with Dipterocarpaceae. As in W. biformis, brood size can be large (up to 87) (Beaver & Browne 1979).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD2FFA0FF4132066BEB0DB5.taxon	description	New record: Nakhon Ratchasima, Khao Yai, 24. x. 1970 (R. A. Beaver) (1). Other distribution: Malaysia (W.). (3) Biology: Unknown.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD1FFA0FF4135E36BF10FA7.taxon	description	(Figs 33 – 34)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD1FFA0FF4135E36BF10FA7.taxon	description	New records: Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iii. 2010 (W. Sittichaya) (1); Namtok Yong NP, Road to Khao Mhen, 150 m from Nern 499, 8 ° 16.959 ' N, 99 ° 39.149 ' E, 499 m, MT, various dates from 8. vii. - 1. x. 2008 (Samnaokan, S.) (7). Other distribution: Malaysia (W.). (3) Biology: Associated with Dipterocarpaceae. Beaver and Browne (1979) note that despite its medium size, it tends to attack smaller stems (2 – 5 cm diameter) than other Webbia species. A brood of 107 offspring is recorded by Beaver & Browne (1979).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD1FFA0FF4137D269570977.taxon	description	New records: Chaiyaphum, Phu Khieo WS, vii. 2005 (Hulcr et al.) (1); Chumphon, 10 o 19 ' 23 '' N, 99 o 01 ' 25 '' E, 103 m, EtOH trap in durian plantation, 1. ix. 2010 (W. Sittichaya) (1); Nakhon Ratchasima, Khao Yai, 24. x. 1970 (R. A. Beaver) (1). Other distribution: China (Xizang, Yunnan), India (Madhya Pradesh, Uttar Pradesh), Indonesia (Maluku), Malaysia (E. & W.). Intercepted in Japan in timber imported from East Malaysia and the Moluccas. (4) Biology: Associated with Dipterocarpaceae. Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD1FFA0FF4131A268490B1E.taxon	description	New record: Nakhon Sri Thammarat, Khao Nan NP, sifting trop. rain for. litter, 17. viii. 2006 (A. Hasalem) (1). Other distribution: Malaysia (E. & W.), Philippines. Intercepted in Japan in timber imported from the Philippines. The species also occurs in Brunei Darussalam (R. A. Beaver, unpublished records). (3) Biology: Associated with Dipterocarpaceae. Browne (1961 a) notes single records from unidentified Burseraceae and Euphorbiaceae.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD1FFA0FF41339068660AC0.taxon	description	Other distribution: Cambodia, India (Andaman Is., Assam), Indonesia (Sumatera), Malaysia (E. & W.), Myanmar, Philippines, Vietnam. Intercepted in Japan in timber imported from the region. (4) Biology: Associated with Dipterocarpaceae. Illustrations: P (Nobuchi 1978).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD0FFA1FF41359B6BB00EB8.taxon	description	New records: More than 240 specimens collected in all regions of the country. Other distribution: From India, Nepal and Sri Lanka through China (Yunnan) and Southeast Asia and Indonesia including Timor, to Taiwan in the North, and East to New Guinea. The species has been introduced to Cuba, Jamaica and the United States (Okins & Thomas (2010). There are old, single records from East Africa and the Seychelles, but the species has not been recorded there recently. (The island of Timor is not in the Mariana Is. in Micronesia (contra Wood and Bright (1992), and Saha and Maiti (2004). (4) Biology: Polyphagous (Browne 1961 a, Schedl 1963, Wood & Bright 1992, Maiti & Saha 2004). The gallery system consists of an unbranched entrance tunnel leading to a brood chamber in the longitudinal plane (Browne 1961 a, Schedl 1963). The brood chamber is gradually enlarged by the larvae as they develop. Kalshoven (1959) gives some details of brood sizes at different stages of development of the brood chamber. The species attacks plantation trees, but the attacks are secondary on stressed or dying host trees, and not primary on healthy trees (Maiti & Saha 2004). Illustrations: P (Atkinson 2014, Hulcr 2013, Hulcr & Cognato 2013); D (Nunberg 1978 as Xyleborus andrewesi, Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD0FFA1FF4136EF69500A6A.taxon	description	New records: Chaiyaphum, Phu Khieo WS, viii. 2005 (J. Hulcr et al.) (2); Chiang Mai, Chiang Mai Univ., 300 m, 14. iii. – 4. iv. 2005 (W. Puranasakul) (1); Doi Chiang Dao WS, Pha Tang unit, 19 ° 24.978 ' N, 98 ° 54.886 ' E, 526 m, MT, 7 – 28. x. 2007 (Songkran & Apichart) (8); as previous except: Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 30. ix – 1. x. 2007 (1); Doi Chiang Dao, at light, 12 – 13. vii. 2002 (A. Cognato) (1); Maerim, FIT, 17. xi. 2003 (R. A. Beaver) (1); Chumphon, Sawi distr., 10 ° 19 ' 07.7 '' N, 99 ° 01 ' 40.2 '' E, 103 m, durian plantation, EtOH trap, 31. i. 2010 (W. Sittichaya) (18); Thung Tako Distr., 10 ° 02 ' 41.9 '' N, 99 ° 01 ' 5.7 '' E, 86 m, durian plantation, EtOH trap, 1. iv. 2010 (W. Sittichaya) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 33.8 '' N, 99 ° 37 ' 48.6 '' E, 62 m, durian plantation, 01. xii. 2009 (W. Sittichaya) (4); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, 1. iii. 2010 (W. Sittichaya) (1); as previous except: Kiriwong, 8 o 27 ' N, 99 o 44 ' E, 200 m, 1 – 6. iv. 1997 (J. Kolibač) (4); Prachinburi, Sakaerat Ecol. Research Station, at light, 8. vi. 2001 (E. Horváth & G. Sziráky) (1); Satun, Thale Ban, 6 o 45 ' N, 100 o 09 ' E, 200 m, 8 – 13. iv. 1997 (J. Kolibač) (1); Surat Thani, Bhan Nasan Distr., 08 ° 53 ' 10.7 '' N, 99 ° 24 ' 02.6 '' E, 60 m, durian plantation, EtOH trap, 1. x. 2009, 31. xii. 2010 (W. Sittichaya) (2). Other distribution: From India through Southeast Asia and Indonesia, North to Taiwan, and East to New Guinea and Australia. Recently introduced to and established in the southern U. S. A. (Cognato et al. 2013). (4) Biology: Polyphagous (Wood & Bright 1992). Browne (1961 a) describes the gallery system as a branched tunnel with several brood chambers in the longitudinal plane. Illustrations: P (Hulcr 2013); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFD0FFDEFF41329B6E890F7F.taxon	description	New records: More than 1720 specimens collected in all regions of the country, the great majority (1689) in durian (Durio zibethinus) (Bombacaeae) orchards in southern Thailand using traps baited with ethyl alcohol (Sittichaya et al. 2012). Other distribution: From India and Sri Lanka through Southeast Asia and Indonesia to New Guinea, Australia and the Pacific islands. Also present in West Africa, and introduced into Central America. (5) Biology: Polyphagous (Browne 1961 a). The gallery system resembles that of X. andrewesi (see above). Kalshoven (1959) gives details of brood sizes in various hosts in relation to the size of the brood chamber. Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013, PaDIL 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAFFFDEFF4137AA68460B15.taxon	description	New records: Chiang Mai, [Chiang Mai city], 300 m, MT, 23. i. 1971 (R. A. Beaver) (1); Chumphon, Sawi distr., 10 ° 19 ' 35.1 '' N, 99 ° 01 ' 21.0 '' E, 103 m, durian plantation, EtOH trap, 1. x. 2009 (W. Sittichaya) (3); as previous except: Thung Tako Distict, 10 ° 02 ' 21.8 '' N, 98 ° 59 ' 13.5 '' E, 107 m, 1. ix. 2009 (7); Kanchanaburi, Khuean Srinagarindra NP, Huai Mae Kamint, 14 ° 38.123 ' N, 98 ° 59.657 ' E, MT, 9 – 16. x. 2008 (Somboon & Daorueng) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, EtOH trap, 1. xi. 2009 (W. Sittichaya) (1); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, EtOH trap, 1. iii. 2010 (W. Sittichaya) (7); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 15 – 22. vii., 29. vii. – 5. viii., 9 – 16. ix. 2008 (U-prai, K.) (3); Surat Thani, Bhan Nasan Distr., 08 ° 48 ' 57.3 '' N, 99 ° 23 ' 52.2 '' E, 62 m, durian plantation, EtOH trap, 1. i. 2010 (W. Sittichaya) (1); Khao Sok NP, Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, pan trap, 13 – 14, 14 – 15,15 – 16. vii. 2008 (Buathong, S.) (3); as previous except: MT, 10 – 17. vii., 23 – 30. xii. 2008, 16 – 23. vi. 2009 (Pongphan) (4); as previous except: Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 122 m, 21 – 28. x. 2008 (1); as previous except: Klong Morg Unit, 8 ° 53.725 ' N, 98 ° 39.025 ' E, 87 m, 2 – 9. xii. 2008 (2). Other distribution: Indonesia (Java, Sumatera), Malaysia (E. & W.), Papua New Guinea. (3) Biology: The species attacks small trees of several families including palms (Arecaceae). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAFFFDEFF41334368760AB0.taxon	description	Other distribution: East Malaysia (Sarawak). The species also occurs in Brunei Darussalam, Laos and East Malaysia (Sabah) (R. A. Beaver, unpublished records). (3) Biology: Recorded from Artocarpus (Moraceae) and Mangifera (Anacardiaceae) (Schedl 1964 b, Sittichaya 2012). Illustrations: P (Sittichaya 2012).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAEFFDFFF41359B68A10CED.taxon	description	Thai distribution: (unspecified province) (Hutacharern et al. 2007); N: Chiang Mai. New records: Chiang Mai, Doi Pui, 1400 m, EtOH trap, various dates from: 6. ix. – 12. xi. 2004, 10 – 31. x. 2005, 8 – 12. v. 2006 (W. Puranasakul) (7); as previous except: FIT, 16 – 20. v. 2005 (1). Other distribution: India (Assam). (2) Biology: Unknown. Probably a montane species.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAEFFDFFF41371B682A0EFE.taxon	description	New records: Chiang Mai, Doi Pui, 1400 m, EtOH trap, various dates from: 8 – 12. xi. 2004, 14. iii. – 20. v. 2005, 10 – 31. x. 2005, 17. iv. – 8. v. 2006 (W. Puranasakul) (9); Doi Saket, Pamiang, EtOH trap, coffee plantn, ii. 2013 (Y. Chanbang) (7); Queen Sirikit Botanical Garden, 18 o 53 ' 44.7 '' N, 98 o 51 ' 41.6 '' E, 638 m, semi-evergreen forest, MT, 19 – 26. vii. 2006 (J. Phasuk) (1). Other distribution: India (Assam, W. Bengal). The species also occurs in China (Yunnan), Laos, Taiwan and Vietnam (R. A. Beaver, unpublished records). (2) Biology: Recorded from four genera in four different families (Maiti & Saha 2004). Presumably polyphagous. Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAEFFDFFF4131286EB10A50.taxon	description	New records: Widely distributed in all regions of the country. More than 800 specimens have been examined. Other distribution: Probably native to tropical America (Wood 1977), but now circumtropical. Less common in the Oriental region than in Africa and the Americas, but sometimes locally abundant. (5) Biology: Strongly polyphagous (Schedl 1963, as Xyleborus mascarensis Eichhoff, Wood 1982). The biology of the species is reviewed by Schedl (1963). Schneider (1987) notes that more than one generation may inhabit the same gallery system, and describes the oral mycangia. Seasonal changes in numbers caught in traps have been related to temperature and rainfall in Africa (Beaver & Löyttyniemi 1991, Madoffe & Bakke 1995), and in Central America (Rangel et al. 2012). Flight height preference in Amazonia is described by Abreu et al. (2001). Laboratory rearing techniques, and the occurrence of delayed dispersal and alloparental care are discussed by Biedermann et al. (2009, 2011). In Thailand, the species is recorded attacking rubberwood (Sittichaya & Beaver 2009, Kangkamanee et al. 2011), and stressed mango and cashew trees (Sittichaya 2012). It is common in durian plantations in southern Thailand (Sittichaya et al. 2012). Although its attacks are secondary, the species can be of economic importance due to its abundance and wide host range. Illustrations: P (e. g. Atkinson 2014, Hulcr 2013, PaDIL 2014); D (Schedl 1963, Nunberg 1978).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAEFFDCFF41328769500F37.taxon	description	Other distribution: From India through Southeast Asia and Indonesia to New Guinea and the Pacific islands. Intercepted in Japan in timber imported from the region. Also recorded from EastAfrica and Madagascar. (4) Biology: Murphy and Meepol (1990) suggest an association with mangroves in southern Thailand, as do Maiti and Saha (2004) in the Sundarbans and Andaman Islands, but overall the species is polyphagous (Schedl 1963). Beeson (1930 as Xyleborus riehli Eichhoff) describes the gallery system. Numbers caught in light traps in Ranong are related to rainfall by Murphy and Meepol (1990). Illustrations: P (Hulcr 2013); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFADFFDCFF413762682A0926.taxon	description	Other distribution: From India and Sri Lanka through Southeast Asia and Indonesia to New Guinea and the Pacific islands. Intercepted in Japan in timber imported from the region. (4) Biology: Polyphagous (Beeson 1930, Browne 1961 a, Ohno 1990). The species is frequently associated with mangrove forests, but also attacks a very wide variety of other trees (Browne 1961 a, Maiti & Saha 2004). Beeson (1930) describes the gallery system, and considers the species to be one of the most injurious in the Andaman Is. In Thailand, Murphy and Meepol (1990) plot the numbers caught in light traps over nine months, and relate the changes to rainfall. Illustrations: D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFADFFDCFF41315069910A15.taxon	description	New records: Chiang Mai, Doi Pui, Chang Khian Highland Res. Stn, ex avocado log, 21. iv. 2013 (S. Buranaphanichpan) (1); Nakhon Ratchasima, Khao Yai NP, Dong Ngu How area, 14 ° 28.524 ' N, 101 ° 22.928 ' E, 757 m, MT, 26. xii. 2006 – 2. i. 2007 (W. Sook-kho) (1). Other distribution: Bangladesh, China (Fujian, Hunan, Sichuan), India (Assam, W. Bengal), Japan, Taiwan. Imported to and established in Eastern U. S. A. (2) Biology: The species has an evident preference for the family Lauraceae, and its attacks are apparently restricted to that family in the U. S. A. (Rabaglia et al. 2006, Fraedrich et al. 2008). In the Oriental region, it has also been recorded on three occasions from other families (Dipterocarpaceae, Fagaceae, Leguminosae) (Beaver & Liu 2010), but it is not clear whether it was breeding in these trees. Although not of economic importance in its native range, the species is an invasive pest in the U. S. A., where it transmits a pathogenic fungus (Raffaelea lauricola) to a variety of Lauraceae trees (including avocado) (Harrington et al. 2011). Consequently its host preferences, attractant volatiles, flight activity and other aspects of its biology, and possible management and control methods, have recently been studied intensively (e. g. Hanula et al. 2008, Koch & Smith 2008, Hulcr et al. 2011, Brar et al. 2012, 2013, Kendra et al. 2012, Formby et al. 2013, Maner et al. 2013, Mayfield et al. 2013). Illustrations: P (Atkinson 2014, PaDIL 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFADFFDDFF41324368460CD5.taxon	description	New records: Chumphon, Sawi distr., 10 ° 19 ' 42.0 '' N, 99 ° 01 ' 9.8 '' E, 86 m, durian plantation, EtOH trap, 1. xii. 2010 (W. Sittichaya) (1); Nakhon Sri Thammarat, Khao Luang NP, EtOH trap, 1. v. 2010 (W. Sittichaya) (1). Other distribution: Indonesia (Java), Malaysia (W.), Papua New Guinea, Philippines, Sri Lanka, Taiwan. The species also occurs in Brunei Darussalam, East Malaysia (Sabah), Indonesia (Sulawesi) and Singapore (R. A. Beaver, unpublished records). (3) Biology: Probably polyphagous, but at present recorded from only two families (Anacardiaceae, Meliaceae) (Beaver & Liu 2010). The gallery system is irregularly branched with several small brood chambers in the longitudinal plane (Browne 1961 a). Illustrations: P (Hulcr 2013).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFACFFDDFF4137036ED50895.taxon	description	New records: Almost 600 specimens were collected by participants in the TIGER project in all parts of the country, and nearly 3,500 specimens by Sittichaya et al. (2012) in the South of the country. This is usually the most abundant ambrosia beetle in disturbed areas in both urban and rural environments. Other distribution: Throughout tropical parts of the Afrotropical, Australian and Oriental regions. Wood and Bright (1992) and Wood (2007) consider it to be absent from the Neotropical region, where it is replaced by Xyleborus volvulus (F.), but the species are doubtfully distinct and appear to overlap. It has been frequently intercepted in imported timber in Europe and other parts of the world. (5) Biology: Strongly polyphagous (e. g. Browne 1961 a, Schedl 1963, Gray & Wylie 1974, Ohno 1990). The biology has been described by Browne (1961 a), Schedl (1963) and Kalshoven (1964). The gallery system consists of irregularly branched tunnels, usually in one horizontal plane, but sometimes spreading into three dimensions, and without brood chambers. The species sometimes attacks weakened or injured trees, and can be a minor pest (Browne 1968), but its attacks are usually secondary. Due to its abundance, the species can be important in the downgrade of recently felled timber. In Thailand, it has been bred in numbers from rubberwood (Kangkamanee et al. 2011), and also from stressed mango trees (Sittichaya 2012). Illustrations: P (e. g. Atkinson 2014, Hulcr 2013, PaDIL 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFACFFDDFF4130C369110AA6.taxon	description	New records: Chiang Mai, Khun Khan NP, vii. 2005 (J. Hulcr et al.) (1); Doi Inthanon, ex Pinus sp., 5. viii. 2002 (K. Koivisto) (2); Loei, Phu Kradeung NP, 16 o 53 ' N, 101 o 46 ' E, 1210 m, ex Pinus merkusii, [no date], M. Konkarn (1). Other distribution: China (Yunnan), Myanmar, Taiwan, Vietnam. (2) Biology: This species is unusual amongst Xyleborus in attacking only species of Pinus (Pinaceae), and is hence confined to the mountains of North Thailand. In Thailand it has been recorded from both Pinus kesiya and P. merkusii. The gallery system has not been described, but is likely to resemble that of other Xyleborus species. Illustrations: P (Kikata et al. 1994 as Xyleborus pinivorus).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFABFFDAFF41359B68C90CED.taxon	description	Other distribution: China (Xizang), Japan, Korea, Nepal, Taiwan. (1) Biology: Polyphagous (Nobuchi 1981, Wood & Bright 1992). The associated ambrosia fungi have been studied by Kinuura (1995). Ito and Kajimura (2009) discuss the genetic structure of Japanese populations. Illustrations: P (Dole & Cognato 2010).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFABFFDAFF41371B6BB60A30.taxon	description	New records: Chanthaburi, Khao Khitchakut NP, 100 m N / Prabaht Unit, 12 ° 48.842 ' N, 102 ° 9.144 ' E, 203 m, MT, 28. vii – 3. viii. 2008 (Suthida & Charoenchai) (2); as previous except: Khao Prabaht peak / 150 m S of forest base, 12 ° 50.45 ' N, 102 ° 9.81 ' E, 875 m, 6 – 13. ii. 2009 (1); Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, MT, 30. ix – 7. x. 2007 (Songkran & Apichart) (1); Chumphon, Sawi distr., 10 ° 19 ' 07.7 '' N, 99 ° 01 ' 40.2 '' E, 103 m, durian plantation, EtOH trap, 1. xi. 2010 (W. Sittichaya) (14); as previous except: Thung Tako Distict, 10 ° 02 ' 41.9 '' N, 99 ° 01 ' 5.7 '' E, 86 m, 1. xi. 2010 (2); Khon Kaen, Phu Pha Man NP, Num Pood, 16 ° 44.902 ' N, 102 ° 0.182 ' E, 245 m, MT, 14 – 21. vi. 2006 (R. Phatai) (2); Nakhon Nayok, Khao Yai NP, Hnong Pak Chee Trail, 14 ° 27.115 ' N, 101 ° 21.951 ' E, 733 m, pan traps, 8 – 9. v. 2007 (W. Sukho) (1); as previous except: San Jao Khaokeaw, 14 ° 22.96 ' N, 101 ° 23.253 ' E, 750 m, pan trap, 9 – 10. iii. 2007 (1); Nakhon Ratchasima, Khao Yai NP, Elephant trail nr fire protection office, 14 ° 28.285 ' N, 101 ° 22.57 ' E, 751 m, pan traps, 6 – 7. vi. 2007 (W. Sukho) (1); Nakhon Sri Thammarat, Chang Klang Distr., 8 ° 21 ' 33.7 '' N, 99 ° 39 ' 02.9 '' E, 60 m, durian plantation, EtOH trap, 1. xi. 2009 (W. Sittichaya) (2); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, 01. ii. 2011 (W. Sittichaya) (11); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, 9 – 16. ix., 16 – 23. ix., 23 – 30. ix. 2008 (U-prai, K.) (9); as previous except: Nature trail, 8 ° 10.351 ' N, 99 ° 44.519 ' E, 100 m, pan trap, 11 – 12. viii. 2008 (1); Surat Thani, Bhan Nasan Distr., 08 ° 48 ' 57.3 '' N, 99 ° 23 ' 52.2 '' E, 62 m, durian plantation, EtOH trap, 1. xi. 2009 (W. Sittichaya) (1); Trang, Khao Bantad WS, Sairung Waterfall, 07 ° 26 ' 31.0 '' N, 99 ° 48 ' 28.6 '' E, 110 m, EtOH trap, 01. x. 2013 (W. Sittichaya) (2). Other distribution: Probably of Asian origin (Wood 1977), and widespread through the Oriental region, extending North to Japan, and East to New Guinea, Fiji and Samoa; presumably originally imported to tropical Africa, but now widespread in the Afrotropical region; established in Central America and southern United States, Hawai’i, Italy, Brazil and Peru. (5) Biology: Strongly polyphagous (Dole & Cognato 2010). The biology has been reviewed by Browne (1961 a), Brader (1964), Le Pelley (1968), Entwhistle (1972) and Beaver (1988) amongst others. This is a species of considerable economic importance because it can attack and breed in healthy shoots and twigs. This can result in the introduction of pathogenic fungi. The main economic host is coffee (Coffea spp.) (Rubiaceae), but it is also a pest of tea (Camellia thea) (Theaceae) in Japan, of cocoa (Theobroma cacao) (Sterculiaceae) and avocado (Persea americana) (Lauraceae) in southeast Asia and elsewhere, and may kill seedlings and saplings of shade and forest trees (e. g. Browne 1968, Le Pelley 1968, Entwhistle 1972). Illustrations: P (e. g. Atkinson 2014, Dole & Cognato 2010, Hulcr 2013, PaDIL 2014); D (Schedl 1963 as Xyleborus morstatti Hagedorn).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFABFFDBFF4132676FD00FF5.taxon	description	Other distribution: The species is native to and widespread through the Oriental region, extending North to Japan and Korea, and East to New Guinea, Fiji and Samoa; presumably originally imported to tropical Africa, but now widespread in the Afrotropical region; imported to and established in Italy and the southern U. S. A. (5) Biology: Strongly polyphagous (Dole & Cognato 2010). The basic biology has been described by Browne (1961 a), Schedl (1963) (both as Xyleborus semiopacus), and Beaver (1988) amongst others. Flight activity, and the attraction of flying adults to ethyl alcohol has been studied in the southern U. S. A. by Reding et al. (2011, 2013), attack densities and adult emergence on various hosts by Mayfield et al. (2013), and attraction to volatiles from the symbiotic ambrosia fungus by Hulcr et al. (2011). This is a species of economic importance because, like Xylosandrus compactus, it can attack and breed in healthy shoots and twigs. This can result in the introduction of pathogenic fungi (Sreedharan et al. 1991, Davis & Dute 1997). It seems to be an infrequent pest in the Oriental and Afrotropical regions, although attacks on transplants have been recorded (e. g. Browne 1968). In Thailand it attacks newly sawn rubberwood (Kangkamanee et al. 2011), and is common in durian plantations (Sittichaya et al. 2012). Illustrations: P (e. g. Atkinson 2013, Dole & Cognato 2010, Hulcr 2013, PaDIL 2014); D (Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAAFFDBFF4136236A950BFD.taxon	description	New records: Chaiyaphum, Pa Hin Ngam NP, 15 ° 34.802 ' N, 101 ° 25.99 ' E, 430 m, dry evergreen forest near waterfall, pan trap, 13 – 14. xi. 2006 (K. Sa-nog & B. Adnafai) (1); as previous except: 15 ° 40.232 ' N, 101 ° 26.942 ' E, 398 m, deciduous forest near stream, MT, 13 – 19. vi. 2007 (1); Tat Tone NP, Sab Somboon forest unit, 16 ° 1.059 ' N, 101 ° 58.603 ' E, 674 m, dry dipterocarp forest near swamp, pan trap, 6 – 7. xi. 2006 (T. Jaruphan) (1); Chiang Mai, Maerim, various collection methods, ex mango (Mangifera) and Michelia, various dates from 12. x. 1993 – 20. viii. 2005 (R. A. Beaver) (41); Chumphon, Mueang distr., 10 ° 25 ' 37.9 '' N, 99 ° 03 ' 48.0 '' E, 78 m, durian plantation, EtOH trap, 1. xi. – 30. xi. 2010 (W. Sittichaya) (10); Thung Tako Distr., 10 ° 02 ' 41.9 '' N, 99 ° 01 ' 5.7 '' E, 86 m, durian plantation, EtOH trap, 1. xi. – 30. xi. 2010 (W. Sittichaya) (9); Nakhon Nayok, Khao Yai NP, San Jao Khaokaew, 14 ° 22.96 ' N, 101 ° 23.253 ' E, 750 m, pan trap, 6 – 7. iii. 2007 (W. Sukho) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, durian plantation, EtOH trap, 1. xi. – 30. xi. 2010 (W. Sittichaya) (14); Surat Thani, Bhan Nasan Distr., 08 ° 48 ' 57.3 '' N, 99 ° 23 ' 52.2 '' E, 62 m, durian plantation, EtOH trap, 1. xi. – 30. xi. 2010 (W. Sittichaya) (8); Ubon Ratchathani, Pha Taem NP, West of HuayPok substation, 15 ° 37.212 ' N, 105 ° 36.903 ' E, 438 m, pan trap, 10 – 11. iv. 2007 (B. Sapsiri) (1). Other distribution: From India and Sri Lanka through Southeast Asia and the Philippines to Indonesia, New Guinea and Australia, extending North to southern China, Taiwan and the Ryukyu Is. (4) Biology: Polyphagous (Dole & Cognato 2010). The biology is described by Kalshoven (1959) and Browne (1961 a). Le Pelley (1968) notes that the species attacks green, living branches of coffee in Sri Lanka, but is not considered an important pest. In Thailand, attacks on mango and Michelia (Magnoliceae) were secondary on shaded and dying twigs and small branches. Illustrations: P (Dole & Cognato 2010, Hulcr 2013); D (Nunberg 1959 as Xyleborus discolor, Maiti & Saha 2004)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFAAFFD8FF41324F68C90F1B.taxon	description	Other distribution: Indonesia (Java). The species also occurs in China (Yunnan) (R. A. Beaver, unpublished record). (2) Biology: The only host record is from Eupatorium (Asteraceae) (Eggers 1940). Illustrations: P (Dole & Cognato 2010).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFA9FFD8FF41374E6F2B08BF.taxon	description	New records: Chanthaburi, Khao Khitchakut NP, nature trail, 12 ° 50.55 ' N, 102 ° 7.3 ' E, 50 m, MT, 17 – 24. iv. 2009 (S. Charoenchai) (1); Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan trap, 30. ix – 1. x., 3 – 4., 4 – 5. x. 2007 (Songkran & Apichart) (3); Chumphon, Sawi distr., 10 ° 19 ' 35.1 '' N, 99 ° 01 ' 21.0 '' E, 103 m, durian plantation, EtOH trap, 1. xii. 2010 (W. Sittichaya) (1); Thung Tako Distr., 10 ° 02 ' 41.9 '' N, 99 ° 01 ' 5.7 '' E, 86 m, durian plantation, EtOH trap, 1. ix. 2009 (W. Sittichaya) (32); Loei, Phu Ruea NP, office, 17 ° 28.805 ' N, 101 ° 21.242 ' E, 870 m, MT, 12 – 19. vii. 2006 (P. Tamtip) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, durian plantation, EtOH trap, 1. xii. 2009 (W. Sittichaya) (78); Khao Luang NP, headquarters 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, VT, 1. v. – 31. v. 2010 (W. Sittichaya) (109); Khao Nan NP, sifting trop. rain forest litter, 24. iv. 2006 (A. Hasalem) (2); Surat Thani, Bhan Nasan Distr., 08 ° 53 ' 10.7 '' N, 99 ° 24 ' 02.6 '' E, 60 m, durian plantation, EtOH trap, 1. xii. 2009 (W. Sittichaya) (56). Other distribution: From the Indian subcontinent and China through Southeast Asia to Indonesia West of Wallace’s line, Philippines, Taiwan. Presumably imported to and established in Madagascar, Mauritius, Seychelles, Tanzania. Intercepted in Japan in timber imported from the Oriental region. (4) Biology: Polyphagous (Browne 1961 a, Wood & Bright 1992). Browne (1961 a) describes the biology and gallery system. This was the most abundant species in the durian orchards in southern Thailand (Sittichaya et al. 2012). Illustrations: P (Dole & Cognato 2010); D (Nunberg 1959 as Xyleborus formosanus, Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFA9FFD9FF4130EA683A0F80.taxon	description	New records: Chaiyaphum, Pa Hin Ngam NP, Thepana waterfall, 15 ° 38.948 ' N, 101 ° 25.625 ' E, 604 m, Savanna, pan trap, 23 – 24. x. 2006 (K. Sa-nog & B. Adnafai) (1); Chanthaburi, Khao Khitchakut NP, between checkpoint and sala, 12 ° 50.28 ' N, 102 ° 7.13 ' E, 60 m, litter sampling, 22 – 26. ix. 2008 (Suthida & Charoenchai) (1); as previous except: Prabaht unit / 20 m from bridge, 12 ° 49.23 ' N, 102 ° 9.16 ' E, 222 m, MT, 9 – 16. x. 2008 (1); Chiang Mai, Doi Chiang Dao WS, Nature trail, 19 ° 24.278 ' N, 98 ° 55.311 ' E, 491 m, pan traps, 2 – 3. x. 2007 (Songkran & Apichart) (1); Nakhon Sri Thammarat, Chang Klang Distr., 08 ° 20 ' 59.7 '' N, 99 ° 40 ' 14.6 '' E, 70 m, durian plantation, EtOH trap, 1. iv. 2010 (W. Sittichaya) (2); Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, 1. iv. 2010 (W. Sittichaya) (2); Namtok Yong NP, 8 ° 10.434 ' N, 99 ° 44.508 ' E, 80 m, MT, various dates from 8. vii. – 23. ix. 2008 (U – prai, K.) (6); as previous except: pan trap, 26 – 27. vii., 10 – 11. ix. 2008 (2); Songkhla, Ton Nga Chang WS, 06 ° 59 ' 40 '' N, 100 ° 08 ' 58 '' E, 98 m, EtOH trap, 1. x. 2013 (W. Sittichaya) (2); Surat Thani, Khao Sok NP, Bang Huaraed, 8 ° 54.555 ' N, 98 ° 30.522 ' E, 123 m, MT, 24 – 31. vii. 2008 (Pongphan) (1); as previous except: Headquarters, 8 ° 54.896 ' N, 98 ° 31.81 ' E, 115 m, 31. vii – 7. viii. 2008 (1); as previous except: Pan trap 14 – 15. vii. 2008 (1); as previous except: Klong Mog Unit, 8 ° 53.725 ' N, 98 ° 39.025 ' E, 87 m, MT, 17 – 24. vii. 2008 (1); Trang, Khao Bantad WS, Sairung Waterfall, 07 ° 26 ' 31.0 '' N, 99 ° 48 ' 28.6 '' E, 110 m, EtOH trap, 01. x. 2013 (W. Sittichaya) (2). Other distribution: Native to the Indo-Malaysian region (Wood 1977), but now almost circumtropical as a result of commerce (Dole & Beaver 2008). Intercepted in Japan in timber imported from the Oriental region. (6) Biology: The biology has been studied by Browne (1961 a) and Kalshoven (1961). These and other studies are reviewed by Schedl (1963) and Le Pelley (1968). The species has some economic importance as a pest of coffee (Kalshoven 1961, Le Pelley 1968) and of other crop trees. Illustrations: P (e. g. Atkinson 2014, Dole & Cognato 2010, Hulcr 2013, PaDIL 2014); D (Schedl 1963 as Xyleborus morigerus, Maiti & Saha 2004).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFA8FFD9FF4137B768C90948.taxon	description	New records: Chiang Mai, Doi Inthanon NP, Campground Pond, 18 ° 32.4 ' N, 98 ° 31.8 ' E, 1200 m, MT, 1 – 8. v. 2007 (Y. Areeluck) (1); Doi Pui, 1400 m, EtOH trap, 29. viii. – 2. ix. 2005 (W. Puranasakul) (1); Fang, 8 km E, Doi Anh Kang, over a rocky brook, 2. xi. 2004 (M. Földväri, A. Orosz, L. Papp) (1). Other distribution: Myanmar. (2) Biology: Unknown. Illustrations: P (Dole & Cognato 2010).	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFA8FFD9FF41317F69DD0BEA.taxon	description	New records: Chiang Mai, Queen Sirikit Botanic Garden, 18 o 53 ' 22.0 '' N, 98 o 51 ' 24.1 '' E, 760 m, semievergreen forest, FIT, 10 – 13. xi. 2006 (R. Sawkord, W. Srisuka) (1); Kanchanaburi, Khuean Srinagarindra NP, Tha Thung-na / Chong Kraborg, 14 ° 29.972 ' N, 98 ° 53.035 ' E, 210 m, MT, 6 – 13. xi. 2008 (Boonnam & Phumarin) (1); Nakhon Sri Thammarat, Khao Luang NP, headquarters, 08 ° 22 ' 21.6 '' N, 99 ° 44 ' 14.7 '' E, 196 m, 1. iii., 1. iv. 2010 (W. Sittichaya) (5); Phetchabun, Nam Nao NP, 16 – 17. vii. 2005 (J. Hulcr et al.) (1); as previous except: Checkpoint, 16 ° 43.695 ' N, 101 ° 33.797 ' E, 921 m, pan traps, 1 – 2. iii. 2007 (N. Hongyothi & L. Janteab) (1). Other distribution: China (Yunnan), India (Assam, Meghalaya, W. Bengal), Myanmar. The species also occurs in Laos (R. A. Beaver, unpublished record). (2) Biology: Recorded from five different families (Maiti & Saha 2004, Dole & Cognato 2010), and presumably polyphagous. Illustrations: P (Dole & Cognato 2010); D (Maiti & Saha 2004)	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
11038800FFA8FFD6FF41328A6B520EE3.taxon	description	New records: Chiang Mai, Doi Inthanon NP, checkpoint 2, 18 ° 31.559 ' N, 98 ° 29.941 ' E, 1700 m, MT, various dates from 29. vi – 13. ix. 2006 (Y. Areeluck) (9). Other distribution: Bhutan, India (Himachal Pradesh, W. Bengal), Myanmar, Nepal. (2) Biology: Recorded from four different families and probably polyphagous (Beaver 2000). The gallery system resembles that of Scolytoplatypus (see above) with simply branched tunnels in one transverse plane. The eggs are laid in niches, and the larvae develop in separate cradles arranged in series above and below the main gallery (Schedl 1951, Beeson 1961). Illustrations: D (Maiti & Saha 2009). Doubtful records We consider the following published records are doubtful and require confirmation.	en	Beaver, R. A., Sittichaya, W., Liu, L-Y. (2014): A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae). Zootaxa 3875 (1): 1-82, DOI: http://dx.doi.org/10.11646/zootaxa.3875.1.1
