taxonID	type	description	language	source
03B387EC1E26FFB7FF54FCA8FE31D232.taxon	type_taxon	Type species. Amasa thoracica Lea, 1894 = Tomicus truncatus Erichson, 1842	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB7FF54FCA8FE31D232.taxon	diagnosis	Diagnosis. Length 1.9 − 5.4 mm, 1.8 − 3.4 × as long as wide. Amasa are distinguished by the truncate declivity, margined with a circumdeclivital ring; declivital face with three striae; antennal club flattened, typically type 4 with club sutures sinuate, two sutures visible on posterior face or rarely without sutures, type 5; protibiae typically slender, inflated and granulate on posterior face (rarely distinctly triangular or unarmed); anterior margin of pronotum with a row of serrations; scutellum flat, flush with elytral surface; procoxae contiguous or narrowly separated, rarely moderately separated; mycangial tufts absent; eyes deeply emarginate or rarely completely divided. Similar genera: Xylosandrus Reitter, Cyclorhipidion Hagedorn, Pseudowebbia Browne, Truncaudum Hulcr & Cognato, and Webbia Hopkins.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB4FF54FA63FE16D205.taxon	description	(Fig. 2) http: // zoobank. org / urn: lsid: zoobank. org: act: 2 CD 97 C 99 - 3791 - 44 D 9 - 9152 - 87 E 6 C 6 A 81 B 35	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB4FF54FA63FE16D205.taxon	materials_examined	Material examined. Holotype, female: THAILAND, Trang Province, Khao Banthat Wildlife Sanctuary, 7 ° 24 ′ 54.6 ″ N 99 ° 49 ′ 47.5 ″ E, tropical rainforest, ethanol baited trap, 01. xii. 2015, W. Sittichaya, (NHMW).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB4FF54FA63FE16D205.taxon	diagnosis	Diagnosis: 3.22 mm long (pronotal anterior margin to declivital summit 2.8 mm); 2.32 × as long as wide. This species is distinguished by the pronotum appearing basic (type 2), when viewed dorsally, anterior margin serrate; anterior slope shining, with widely spaced, low traverse asperities, elytra short, 1.10 × as long as pronotum, declivital face shiny, weakly convex, strial punctures large, round, deep, interstriae flat with sparse, very fine, confused granules, interstriae 1 with uniseriate granules present only near elytral apex, not elevated. Similar species: Amasa concitata (Schedl), A. cycloxyster Smith, Beaver & Cognato, A. galeoderma Smith, Beaver & Cognato, A. resecta (Eggers), A. schlichii (Stebbing), A. versicolor (Sampson) (A. schlichii group).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB4FF54FA63FE16D205.taxon	description	Description (female). 3.22 mm long (pronotal anterior margin to declivital summit 2.83 mm); 2.32 × as long as wide. Body yellowish brown, except declivital margin and elytral punctures dark brown. Head. Epistoma entire, transverse, with row of hair-like setae. Frons weakly convex to upper level of eyes; median impression between eyes rhomboid, surface dull, without punctures or asperities; frons below eyes dull, alutaceous, impunctate, asperate, setose; asperities longitudinal, larger, rounder, denser above epistoma, increasing in size and length and decreasing in density dorsally and laterally; setae longer dorsally; vertex shagreened, minutely granulate. Eyes very deeply emarginate just above antennal insertion, upper part much smaller than lower part. Submentum triangular, deeply impressed. Antennal scape regularly thick, as long as club. Pedicel as wide as scape, 4 × shorter than funicle. Funicle 4 - segmented, segment 1 as long as pedicel. Club teardrop-shaped, inflated, type 4; segment 1 corneous, convex on anterior face, occupying approximately basal 1 / 4; segment 2 narrow, smaller than segment 1, corneous; segments 1 – 3 present on posterior face. Pronotum. 1.07 × as long as wide. In dorsal view basic, parallel-sided, type 2, sides parallel in basal 1 / 2, rounded anteriorly; anterior margin with row of eight serrations. In lateral view basic, type 0, disc flat, summit approximately at midpoint. Anterior slope shiny, with widely spaced transverse low asperities, approximately similar in size on entire surface, asperities becoming less dense near summit, bearing long, fine, semi-recumbent, hair-like setae. Disc shiny, sparsely finely punctate, glabrous. Lateral margins obliquely costate. Base broadly concave, posterior angles broadly rounded. Elytra. 1.18 × as long as wide, 1.14 × as long as pronotum. Scutellum small, narrow, linguiform, flush with elytra, flat, shining. Elytral base broadly concave, edge oblique, humeral angles rounded, side subparallel in basal 4 / 5, then sharply angulate to apex, slightly wider than pronotum, 28: 29. Disc ascending posteriorly, shining, glabrous; striae and interstriae laterally diverging from base to declivital summit; strial punctures moderate, shallowly impressed; interstriae flat, impunctate, double as wide as striae. Declivity truncate, slightly ascending posteriorly, circumdeclivital margins sharply carinate, face slightly convex, more strongly convex from margin medially, shining, sparsely covered with very short fine setae; three striae present, strial punctures large round deeply impressed, punctures of striae 1 and 2 similar in size, striae 3 punctures smaller than those of 1 or 2, strial punctures moderate shining, much larger than on disc; interstriae impunctate, flat, interstriae 1 elevated near apex, elevation low, inconspicuous bearing a row of small granules; interstriae 1 – 3 granulate, granules minute, confused, multiseriate. Legs. Procoxae slightly separated, prosternal coxal piece flat, acute on apex. Protibiae slender, broadest at apical 1 / 3; posterior face inflated, granulate; apical 1 / 2 of outer margin with eight small socketed denticles, their length as long as basal width. Meso- and metatibiae broad, flattened, outer margins evenly rounded, each with 11 small socketed denticles, posterior faces unarmed; anterior faces finely granulate.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB4FF54FA63FE16D205.taxon	etymology	Etymology. The name honors Dr. Roger A. Beaver for his enormous contributions in both classic and modern Scolytinae taxonomy.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB4FF54FA63FE16D205.taxon	distribution	Distribution: THAILAND: Trang Province.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E26FFB4FF54FA63FE16D205.taxon	biology_ecology	Host plants. Unknown.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E25FFB5FF54FAEFFE16D375.taxon	description	(Fig. 3) http: // zoobank. org / urn: lsid: zoobank. org: act: 147 EDD 3 A- 7321 - 4 CAB- 824 B- 1967 DE 6 C 3 FD 3	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E25FFB5FF54FAEFFE16D375.taxon	materials_examined	Material examined. Holotype, female: THAILAND, Phang Nga Province, Sri Phang Nga National Park, 8 ° 59 ′ 40.3 ″ N 98 ° 28 ′ 07.9 ″ E, tropical rainforest, ethanol baited trap, 01. iv. 2015, W. Sittichaya, (NHMW).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E25FFB5FF54FAEFFE16D375.taxon	diagnosis	Diagnosis: 2.30 mm long (pronotal anterior margin to declivital summit 2.0 mm); 1.05 × as long as wide. This species is easily distinguished by very short and stout form, pronotum approximately as long as elytra; pronotum round, type 1, when viewed dorsally, anterior margin serrate, procoxae moderately separated, declivity with long, erect hair-like setae. Similar species: Amasa cylindrotomica (Schedl).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E25FFB5FF54FAEFFE16D375.taxon	description	Description (female). 2.30 mm long (pronotal anterior margin to declivital summit 2.0 mm); 1.05 × as long as wide. Very stout, cylindrical, yellowish brown, pronotal anterior slope, near elytral lateral margin and declivity dark brown, elytra near declivital margin reddish brown. Head. Epistoma entire, transverse, with row of hair-like setae. Frons weakly convex to upper level of eyes; median line between eyes flat, not impressed, vertically extended to epistoma, surface dull, impunctate, alutaceous, asperate; asperities longitudinal, sparse, inconspicuous, rounder and slightly denser above epistoma, increasing in size and length and decreasing in density dorsally and laterally. Frons sparsely covered with long very fine hairlike setae. Eyes deeply emarginate just above antennal insertion, upper part smaller than lower part. Submentum small triangular, deeply impressed. Antennal scape regularly thick, slightly shorter than club (1: 1.2). Pedicel as wide as scape, shorter than funicle. Funicle 4 - segmented, segment 1 shorter than pedicel. Club circular and flat without sutures, type 5, its margins present but softly pubescent. Pronotum. 1.0 × as long as wide. In dorsal view short and rounded, type 1, sides subparallel in basal 1 / 2, rounded anteriorly and dorsally; anterior margin with a row of ten serrations. In lateral view basic, type 0, disc flat, summit approximately at midpoint. Anterior slope with very densely spaced, fine transverse asperities, becoming lower towards summit, bearing moderately long, fine, erect hair-like setae. Some longer hair-like setae at anterior and lateral margins. Disc shining, with very fine sparse punctures, glabrous. Lateral margins obliquely costate. Base transverse, posterior angles broadly rounded. Elytra. 1.0 × as long as wide, 1.0 × as long as pronotum. Scutellum moderately sized, broad, linguiform, flush with elytra, flat, shining. Elytral base broadly convex, edge carinate, humeral angles rounded, parallel-sided in basal 4 / 5, then sharply angulate to apex. Disc slightly ascending posteriorly, shining, sparsely covered with very fine and very short inconspicuous setae; striae and interstriae laterally diverging from base to declivital summit; striae small, shallowly impressed; interstriae flat, very fine and inconspicuous punctate, double as wide as striae. Declivity truncate, face slightly ascending posteriorly, circumdeclivital margins sharply carinate; face slightly convex, subshiny, covered with erect long setae; three striae present, strial punctures round, deeply impressed, approximately as large as on disc, punctures subcontiguous, each with a very short fine seta; interstriae impunctate, flat, interstriae 1 – 3 multiseriate granulate, each granule with a long erect hair-like seta, granules multiseriate, confused. Posterolateral margin forming a circumdeclivital carina; carina setose, setae short, erect, hair-like. Legs. Procoxae moderately separated, prosternal coxal piece flat, inconspicuous. Protibiae slender, triangular, broadest at apex; posterior face inflated, finely granulate; outer margin three and five small socketed denticles at apex, their length as long as basal width. Mesotibiae broad, triangular, broadest at apical 2 / 3, flattened, outer margins with eight small socketed denticles. Metatibiae broad, flattened, broadest at middle, outer margins evenly rounded, with ten small socketed denticles. Meso-and metatibiae posterior faces with inner part longitudinally inflated and bearing long fine setae, outer part flat, glabrous, unarmed; anterior faces finely granulate.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E25FFB5FF54FAEFFE16D375.taxon	etymology	Etymology. The species is named in honor of Dr. Anthony I. Cognato for his great contributions to modern Scolytinae taxonomy.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E25FFB5FF54FAEFFE16D375.taxon	distribution	Distribution: THAILAND: Phang Nga Province.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E25FFB5FF54FAEFFE16D375.taxon	biology_ecology	Host plants. Unknown.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E24FFBEFF54FB78FE13D3CD.taxon	description	(Fig. 4) http: // zoobank. org / urn: lsid: zoobank. org: act: F 6 B 675 A 6 - F 349 - 4865 - B 35 D-D 0 E 970524 B 93	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E24FFBEFF54FB78FE13D3CD.taxon	materials_examined	Material examined. Holotype, female: THAILAND, Chaiyaphum Province, Phu Khiao Wildlife Sanctuary, 16 ° 23 ′ 38.8 ″ N 101 ° 34 ′ 07.8 ″ E, Dry-dipterocarp forest with pine subtype, 870 msl., ethanol baited trap, 21. vii. 2019, W. Sittichaya, (NHMW); Paratypes, female, Nakhon Sri Thammarat Province, Khao Luang National Park, 8 ° 43 ′ 08.7 ″ N 99 ° 40 ′ 39.2 ″ E, tropical rainforest, ethanol baited trap, 01. vi. 2011, Loei Province, Phu Luang Wildlife Sanctuary, 17 ° 16 ′ 58.1 ″ N 101 ° 31 ′ 10.4 ″ E, 1,460 msl., Hill evergreen forest, ex dry branch, 25. vi. 19, (1) (all W. Sittichaya) (2 WSTC), Chaiyaphum Province, Phu Khiao Wildlife Sanctuary, 5. vii. 2005, J. Hulcr, S. Dole, ex branch (1 MSUC).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E24FFBEFF54FB78FE13D3CD.taxon	diagnosis	Diagnosis: 2.90 – 2.98 mm long; 2.44 × as long as wide. This species is distinguished by the pronotum appearing basic (type 2) when viewed dorsally, anterior margin serrate, pronotal anterior slope shagreened with densely spaced, short fine asperities, strial punctures small, shallow and inconspicuous, elytral discal interstriae densely punctate, punctures small and confused, not seriate, declivital face smooth and shining, punctures on declivity large, much larger then on disc. Similar species: Amasa lini Smith, Beaver & Cognato, A. youlii Smith, Beaver & Cognato.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E24FFBEFF54FB78FE13D3CD.taxon	description	Description (female). 2.90 – 3.10 mm long (mean = 2.99 mm; n = 3; pronotal anterior margin to declivital summit 2.58 – 2.70 mm, mean 2.63 mm; n = 2); 2.27 – 2.44 × as long as wide. Body shining, bicolored: pronotal disc, head, legs, antennae and venter brown to dark brown, anterior slope of pronotum, and elytra, dark reddish brown. Head. Epistoma entire, transverse, with row of hair-like setae. Frons weakly convex to upper level of eyes. Median impression between eyes triangular and short, surface subshiny shagreen with longitudinal asperities. Frons below eyes alutaceous, subshiny, with moderately large longitudinal asperities, asperities rounder, denser and larger above epistoma, increasing in length dorsally and laterally. Eyes deeply emarginate just above antennal insertion, upper part smaller than lower part. Submentum triangular, deeply impressed. Antennal scape regularly thick, shorter than club (5: 8). Pedicel as wide as scape, shorter than funicle. Funicle 4 - segmented, segment 1 approximately equal in length with pedicel. Club taller than wide (8: 6) and flat, type 4; segment 1 corneous, small convex on anterior face, occupying approximately basal 1 / 5; corneous parts of segment 2 and 3 wide nearly as wide as segment 1; segments 1 – 3 present on posterior face. Pronotum. 1.04 × as long as wide. In dorsal view basic and parallel-sided, type 2, sides parallel in basal 1 / 2, rounded anteriorly; anterior margin with a row of seven or eight serrations. In lateral view basic, type 0, disc flat, summit at midpoint. Anterior slope shagreened with densely spaced, short fine asperities, becoming lower and more transverse towards summit, bearing long, fine, semi-recumbent hair-like setae. Disc shining, alutaceous, densely minutely punctate, glabrous. Lateral margins sharp obliquely costate. Base transverse, posterior angles narrowly rounded. Elytra. 1.25 × as long as wide, 1.25 × as long as pronotum. Elytra subshiny, alutaceous. Scutellum small, narrow, linguiform, flush with elytra, flat, shining, its anterior portion extend forwardly beyond elytral base. Base bisinuate, edge carinate, humeral angles rounded, parallel-sided in basal 4 / 5, then sharply angulate to apex. Disc flat, shining, glabrous; striae and interstriae laterally slightly diverging from base to declivital summit; striae punctate, punctures small, shallow; interstriae flat, finely punctate, punctures 1 / 3 size of strial punctures, strongly confused. Declivity truncate, face slightly ascending posteriorly, margin sharp carinated; upper portion of face near lateral margin flattened, lower part on the middle strongly elevated and bearing uniseriate, round apical tubercles on middle of interstria 1. Declivital face strongly shining, smooth; three striae present, strial punctures shining, small, moderately deep, larger than on disc; interstriae slightly inflated, very fine inconspicuous punctate, punctures wide separated; each with very fine very short hair-like setae (visible with high magnitude). Posterolateral margin forming a circumdeclivital carina; carina globous without setae. Legs. Procoxae contiguous, prosternal coxal piece flat, inconspicuous. Protibiae slender, broadest at apical 1 / 3; posterior face inflated, coarsely granulate; apical 1 / 2 of outer margin with six medium size socketed denticles, their length 1 / 2 time as long as basal width. Meso- and metatibiae broad, flattened, outer margins evenly rounded with 11 and 12 small socketed denticles, respectively; posterior faces unarmed; anterior faces coarsely granulate.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E24FFBEFF54FB78FE13D3CD.taxon	etymology	Etymology: The name honors the John D. and Catherine T. MacArthur Foundation, the primary funding source for the Biodiversity Heritage Library, which “ serves to improve research methodology by collaboratively making biodiversity literature openly available to the world ”.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E24FFBEFF54FB78FE13D3CD.taxon	distribution	Distribution: THAILAND: Chaiyaphum Province, Loei Province, Nakhon Sri Thammarat Province.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E24FFBEFF54FB78FE13D3CD.taxon	biology_ecology	Host plants: Unknown.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2FFFBFFF54FAE8FCD1D681.taxon	description	(Fig. 5)	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2FFFBFFF54FAE8FCD1D681.taxon	diagnosis	Diagnosis: 1.93 – 2.06 mm long (mean 2.00 mm, n = 3); 2.96 – 3.17 × as long as wide (mean 3.07, n = 3). This species is distinguished by body cylindrical and elongate, pronotum broadly rounded and elongate, type 8, when viewed dorsally, anterior margin serrate; pronotal disc shagreened; antennal club flat without sutures, type 5, elytra strial punctures large, declivital face flat except on medial part of apical margin, declivity glabrous and shining; punctures on striae 1 and 2 distinctly larger than on striae 3; interstriae flat and glabrous; interstriae 1 near on medial apical margin with elevated uniseriate small granules. Similar species: Amasa similis (Eggers). New records: Thailand: Narathiwat Province, Hala-Bala Wildlife Sanctuary, 5 ° 47 ′ 44 ″ N, 101 ° 50 ′ 07 ″ E, lowland tropical rainforest, 01. i. 2015 (1), 01. iii. 15 (2), (W. Sittichaya), (1 WSTC).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2FFFBFFF54FAE8FCD1D681.taxon	distribution	Distribution: Indonesia (Java). New to Thailand.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2FFFBFFF54FAE8FCD1D681.taxon	biology_ecology	Host plants: Eugenia lineata (Myrtaceae) (Schedl 1954).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2FFFBFFF54FAE8FCD1D681.taxon	discussion	Remarks. Schedl (1954) described this species from Java without designating a holotype. Later (1979) he designated a lectotype and four paralectotypes all from a similar origin, labelled “ Batoerraden, G [gunung]. Slamet, Java ”. WS compared Thai specimens from the far south with the lectotype (NHMW) and concluded that the Thai specimens are similar in length with Schedl’s description (1.9 mm) (Schedl 1954) and lectotype but differ in other body proportions. The lectotype has more similar body proportions to the Thai specimens, but slightly differs from Schedl’s original description. These differences among the original description, lectotype, and three Thai specimens are summarized in Table 1. It is possible that Schedl’s original description may have been an average of more than one specimen since no type was indicated at that time, and this may explain the slight differences in length and proportions of the lectotype compared to the description.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBCFF54FF20FE13D5CA.taxon	description	(Fig. 6)	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBCFF54FF20FE13D5CA.taxon	diagnosis	Diagnosis: 3.12 – 3.25 mm long (mean 3.19 mm, n = 2); 2.14 – 2.24 × as long as wide (mean 2.19, n = 2). This species is distinguished by the pronotum appearing basic (type 2) when viewed dorsally, anterior margin with a row of short median serrations which give the anterior margin a slightly acute appearance, pronotal disc covered with very fine very dense punctures, declivital striae narrow, punctate, interstriae 4 – 5 times broader than striae, with dense short bristle-like setae. Similar species: Amasa anomala (Schedl). New records: Thailand: Nakhon Sri Thammarat Province, Khao Luang National Park, 8 ° 43 ′ 08.7 ″ N 99 ° 40 ′ 39.2 ″ E, tropical rainforest, ethanol baited trap, 01. iii. 2010 (2), (all W. Sittichaya), (2 WSTC).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBCFF54FF20FE13D5CA.taxon	distribution	Distribution: Malaysia (Kelantan). New to Thailand.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBCFF54FF20FE13D5CA.taxon	biology_ecology	Host plants: Unknown.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBDFF54F90FFE16D6A5.taxon	description	(Fig. 7)	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBDFF54F90FFE16D6A5.taxon	diagnosis	Diagnosis. 3.2 – 3.27 mm (mean 3.24 mm, n = 2) long; 2.18 – 2.28 × as long as wide (mean 2.23, n = 2). This species is distinguished by pronotum short, broader than long, broadest at summit, type 1 when viewed dorsally, surface shagreened, dull; anterior slope covered with very fine, low asperities; posterior margin concave; elytra shining, strial punctures shallow, small, declivity abruptly truncate, face flat, dull, strial punctures round, larger than on disc, interstriae granulate, in 1 – 4 irregular rows per interstriae, interstriae 1 narrow, as wide as striae 1, interstriae 2 and 3 2 × as wide as striae 2 and 3, respectively. Similar species. Amasa opalescens (Schedl), A. orbicaudata (Eggers). New records: THAILAND: Yala Province Hala-Bala Wildlife Sanctuary, 5 ° 57 ′ 57.6 ″ N 101 ° 26 ′ 13.5 ″ E, 1490 msl., ex. unknown branch, falling by elephant, elfin montane forest, 26. v. 2021, W. Sittichaya, (NHMW).	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBDFF54F90FFE16D6A5.taxon	distribution	Distribution: Malaysia (Pahang). New to Thailand.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
03B387EC1E2DFFBDFF54F90FFE16D6A5.taxon	biology_ecology	Host plants. Unknown.	en	Sittichaya, Wisut, Smith, Sarah M. (2022): New species and new records of Amasa Lea, 1894 ambrosia beetles from Thailand (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Zootaxa 5196 (2): 197-210, DOI: https://doi.org/10.11646/zootaxa.5196.2.2
