identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
E853E5051371FFE0FF03DD9AFEBAFF5B.text	E853E5051371FFE0FF03DD9AFEBAFF5B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Parastasia spinosa Hongsuwong, Sanguansub & Jaitrong 2022	<div><p>Parastasia spinosa Hongsuwong, Sanguansub &amp; Jaitrong, new species</p> <p>(Figs. 1–16)</p> <p>Type material. Holotype, male (THNHM-I-09998, THNHM), THAILAND: Chanthaburi province, Soi Dao district, Pong Nam Ron, Khlong Thap Mark, 12°54′313″N, 102°13′089″E, 18.V.2008, T. Jeenthong leg., previous number THNHM-I-2008-04018.</p> <p>Description of holotype. General: Head, metasternite, abdominal ventrites, and legs dark brown; pronotum, elytra, propygidium, pygidium, and ventral prothoracic surface glossy reddish brown; antennae, scutellum, and tarsal claws dark reddish brown. Head: Clypeus subrectangular, clearly shorter than width, lateral margin almost straight with anterior corner rounded; anterior margin of clypeus moderately convex and curved upward bearing 2 sharp denticles medially; posterior clypeal margin convex, obsolete medially, and present as ridge laterally; median portion of surface shagreened, anterior and lateral portions almost smooth and shiny. Ocular canthus small, simply pointed backward with blunt apex; apex with a few of short erect setae (0.10 mm). Eyes entirely round and distinctly convex with ratio of HW and IOD of approximately 0.64. Surface of frons wrinkled, glabrous. In dorsal view, mandibles subrectangular, clearly longer than width, the external margin sinuate, apically truncate, internal margin edentate, and concave. Galea of maxilla with 3 teeth, apical tooth bifurcated. Labrum subrectangular with anterior margin trilobed. Mentum slightly longer than width, its lateral margin concave in apical one-third and roundly convex two-thirds from anterior margin; anterior margin of mentum curved down and concave medially. Antennae 10- segmented, combination of segments 1–7 almost as long as antennal clubs. Pronotum: Clearly shorter than width, widest between posterolateral corners, ratio of PL and PW approximately 0.69; in dorsal view, lateral margin convex in posterior half and almost straight or feebly concave in apical half, anterior margin almost straight, and posterior margin weakly convex; anterolateral corner of pronotum bluntly angulate, and posterolateral corner roundly protruding; anterior and lateral margins marginate with distinct rim. Surface punctate, interspaces of punctures smooth and shiny; punctures on disc sparser and smaller than on lateral portion; mediolateral portions of pronotum with a shallow impression. Scutellum: Subtriangular, clearly shorter than width (0.67 times as long as width), lateral margins roundly convex. Surface with sparse micropunctures. Elytra: In dorsal view, longer than width, widest medially, the external margins convex; area behind one-fourth of external margins impressed; external margins marginated with indistinct rim, obsolete before sutural apices; posterior margin convex, sutural apices blunt. Elytral surface with 11 rows of parallel punctures; areas between the punctate rows almost smooth. Abdominal tergites: Propygidium clearly shorter than width, its anterior and posterior margins convex; anterior half of surface punctate, while posterior half superficially shagreened. Pygidium width (0.46 as long as width); anterior margin weakly concave medially, anterolateral corner round; lateral margin marginated with thick rim and the rim obsolete around apex; surface along lateral and posterior margins of pygidium superficially shagreened, remaining area relatively smooth. Ventral thoracic surface: Ventral prothoracic surface flat; prosternal process distinctly produced as distinct ridge. Metasternite subrectangular shorter than width with a longitudinal groove medially; metasternal process stoutly produced anteriorly, apex reaching level of anterior margin of mesocoxae; lateral portions of metasternite rugopunctate, covered with dense and long decumbent setae (0.40–0.60 mm), median portion somewhat smooth and shiny with sparse micropunctures. Abdominal ventrites: Ventrites 2–5 very short, but not abbreviated, each segment subequal in length; ventrite 6 abbreviately small with posterior margin feebly concave medially. Median portion of ventrites 2–5 sparsely and shallowly punctate, lateral portions reticulate with a row of decumbent setae (0.21–0.29 mm), shorter and more indistinct near median portion; segment 6 wrinkled, posterior margin of abdominal ventrite 6 with a row of setae (0.20–0.26 mm). Legs: Pro- and mesofemora subcylindrical, metafemur flat. External margin of protibia tridentate apically; internal margin of protibia straight and deeply concave basally; apex of external margin of mesotibia with a sharp denticle; apex of external margin of metatibia bluntly bidentate. Each tarsal segment subcylindrical and not abbreviated; tarsal segment 5 shorter than segments 1–4 combined; ventral margin of tarsal segment 4 with a long spinose process produced downward apically; both protarsal claws simply sickle-shaped with internal claw slightly larger than external claw; internal claw of meso- and metatarsi simply sickle-shaped, external claw bifurcate with upper tooth clearly smaller than lower tooth. Male genitalia: parameres symmetric and parallel, widest basally; in dorsal view, their internal margins touching each other; external margin of parameres sinuate, anterior two-fifths concave, the next fifth convex; posterior margins of parameres roundly convex; in lateral view, parameres with almost straight dorsal and ventral margins but curved down around apex; parameres in ventral view relatively narrow and subtriangular, internal margins weakly convex basally and roundly concave medially. In lateral view, dorsal margin of phallobase bilobed. Median sac of endophallus with 3 types of spines: 1) subtriangular, thick and short spines located on anterior part of the sac; 2) normal spines with sharp apex located on posterior part; 3) five dark and large spines on ventral margin of posterior part of the sac.</p> <p>Measurements: TL 12.55 mm; BH 5.31 mm; EL 6.88 mm; EW 7.49 mm; PL 4.34 mm; PW 6.25 mm; HW 2.83 mm; IOD 1.81 mm; ED 1.09 mm.</p> <p>Differential diagnosis. According to reddish or reddish-yellow color and bifurcate external claw of meso- and metatarsi, the resembling of Parastasia discolor group (sensu Ohaus 1900) are looked at the first sight.Among them, Parastasia spinosa, new species is most similar to Parastasia discolor Westwood, 1841 by comparing images of its type series (Figs. 17–28). They share similar characteristics in having the mandibles subrectangular with sinuate external margin, truncate apically, and with concave internal margin; the straight dorsal margin of the parameres in lateral view; and the straight internal margin of the parameres which touch each other in dorsal view. However, P. spinosa, new species can be distinguished from P. discolor by the following characteristics (characters of P. discolor in parentheses unless otherwise stated): 1) anterior margin of labrum almost straight (anterior margin of labrum clearly convex); 2) prebasal and basal maxillary teeth width and with blunt apex (prebasal and basal maxillary teeth narrow and sharp apex); 3) posterior margin of pronotum weakly convex (posterior margin of pronotum distinctly convex); 4) The first row of punctures on elytra (close to internal margin) sinuate (first row of punctures on elytra almost straight); 5) external claws of metatarsi bifurcate, the upper tooth clearly shorter than lower tooth (upper tooth longer than lower tooth); 6) in dorsal view, parameres widest at base (widest at middle); 7) in lateral view, dorsal and ventral margins of parameres almost straight without distinct concavity, apex roundly angulate (dorsal margin convex, ventral margin concave, sharp apex); 8) endophallus with numerous different sizes of spines (endophallus with only small spines).</p> <p>Etymology. The specific epithet “ spinosa ” is a Latin word meaning covered with spines. This refers to the median sac of the endophallus which is covered with three different types of spines.</p> <p>Distribution. The new species is known only from the type locality in Chanthaburi province, eastern Thailand.</p></div> 	https://treatment.plazi.org/id/E853E5051371FFE0FF03DD9AFEBAFF5B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Hongsuwong, Thitipong;Sanguansub, Sunisa;Jaitrong, Weeyawat	Hongsuwong, Thitipong, Sanguansub, Sunisa, Jaitrong, Weeyawat (2022): A new species and a new synonym in the scarab genus Parastasia Westwood, 1841 (Coleoptera: Scarabaeidae: Rutelinae), with a key to species from Thailand. Zootaxa 5205 (6): 547-562, DOI: https://doi.org/10.11646/zootaxa.5205.6.3
E853E5051377FFE4FF03D998FDBEF852.text	E853E5051377FFE4FF03D998FDBEF852.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Parastasia bigibbosa Nonfried 1891	<div><p>Parastasia bigibbosa Nonfried, 1891</p> <p>(Figs. 29–39)</p> <p>Parastasia bigibbosa Nonfried, 1891: 238. Type locality: Siam (ZMB).</p> <p>Parastasia bigibbosa: Ohaus 1898: 15; Ohaus 1918: 32; Ohaus 1934: 100; Machatschke 1972: 37; Kuijten 1992: 33, figs. 21–24; Wada 2013: 8, figs. 12–21.</p> <p>Parastasia sulcicollis Ohaus, 1911: 331.</p> <p>Type locality: Matang, Borneo; Kuijten 1992: 33 [junior synonym of Parastasia bigibbosa].</p> <p>Subpeltonotus andamanae Ghai, Chandra &amp; Ramamurthy, 1988: 21, figs. 1–12.</p> <p>Type locality: South Andamans, India; Jameson &amp; Wada 2004: 6 [transferred to Parastasia]. New synonymy</p> <p>Material examined. Western Thailand: 1 male (CUT), Kanchanaburi province, Thong Pha Phum district, Pilok subdistrict, 29.V.2017, T. Unnahachote leg. Northeastern Thailand: 1 male (THNHM-I-09978, THNHM). Nakhon Ratchasima province, Research site Pakthongchai, 24–26.IV.1967, Dr. Roth leg.; 1 female (THNHM-I-09979, THNHM), Nakhon Ratchasima province, Sakaerat Environmental Research Station, dry evergreen forest, light trap, 8.IV.1969. Eastern Thailand: 2 males (THNHM-I-09982 and THNHM-I-09983, THNHM), Trat province, Ko Kut district, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=102.54683&amp;materialsCitation.latitude=11.624556" title="Search Plazi for locations around (long 102.54683/lat 11.624556)">Klong Yai Ki</a> waterfall, 11º37'28.4"N, 102º32'48.6"E, 18.IV.2009, T. Jeenthong leg.; 1 female (THNHM-I-09981, THNHM), Trat province, Ko Kut district, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=102.54683&amp;materialsCitation.latitude=11.624556" title="Search Plazi for locations around (long 102.54683/lat 11.624556)">Klong Yai Ki</a> waterfall, 11º37'28.4"N, 102º32'48.6"E, 18.IV.2009, T. Jeenthong leg.; 1 male (THNHM-I-09980, THNHM), Trat province, Ko Kut district, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=102.543304&amp;materialsCitation.latitude=11.679306" title="Search Plazi for locations around (long 102.543304/lat 11.679306)">Klong Yai Ki</a> waterfall, 11º40'45.5"N, 102º32'35.9"E, 17.IV.2009, T. Jeenthong leg.</p> <p>Diagnosis (based on Thai specimens). Male: Elongate oval in dorsal view; entire body black to dark; antennae, propygydium, pygidium, tarsi, and abdominal ventrites somewhat lighter in coloration. Eye large, ratio of IOD and HW 0.51; frons partly covered with erect setae; antennal clubs clearly longer than antennal segments 1–7 combined. Pronotum bigibbous with a longitudinal groove medially and lateral portions of pronotum with impressed areas; posterior margin of pronotum with incomplete rim; area around anterolateral corners of pronotum with suberect setae. Elytra with 10 rows of round punctures, distinctly impressed as shallow grooves. Pygidium suboval, 0.58 as long as width; surface of pygidium setigerous reticulate. Male genitalia: Aedeagus symmetric (Figs. 37–39); in dorsal view, external margin of parameres convex third-fifth from anterior, apex truncate and sharply carinate backward. Female: Generally similar to male. However, body size relatively larger than male; antennae somewhat shorter; pygidium shorter than long, oval, 0.53 times as long as width; external claws of meso- and metatarsi narrowly bifurcate (wider in male); in lateral view, abdominal sternites slightly convex, while feebly concave in male.</p> <p>Measurements. Male: TL 14.26–15.46 mm; BH 6.12–6.56 mm; EL 8.43–9.06 mm; EW 7.73–8.36 mm; PL 5.21–5.71 mm; PW 7.03–7.63 mm; HW 3.52–3.65 mm; IOD 1.81–1.92 mm; ED 1.48–1.59 mm. Female: TL 17.26–17.46 mm; BH 7.41–7.47 mm; EL 9.78–9.81 mm; EW 9.58–9.69 mm; PL 6.15–6.31 mm; PW 8.51–8.66 mm; HW 3.94–4.00 mm; IOD 1.95–2.05 mm; ED 1.73–1.75 mm.</p> <p>Differential diagnosis. The species can be separated from the other Thai Parastasia species as follows: 1) body elongate, oval and black to dark color; 2) eyes large (ratio of IOD and HW 0.51); 3) antennal clubs longer than antennal segments 1–7 combined; 4) galea of maxillae without distinct teeth; 5) pronotum bigibbous; 6) head, pronotum near anterolateral corners, propygidium and pygidium covered with setae; 7) parameres symmetric with apex truncate and sharply carinate backward.</p> <p>Distribution. Thailand (Kanchanaburi, Nakhon Ratchasima, and Trat provinces), India (South Andaman Islands) (Ghai et al. 1998), Malaysia (Borneo) (Ohaus 1911).</p> <p>Remarks. The species was originally described from “ Siam ” with no more precise locality (Nonfried 1891). Since then, the subsequent records (as P. sulcicollis) were from Borneo (Ohaus 1911; Kuijten 1992) and there were no more records from Thailand. Therefore, the distribution of this species in Thailand was questioned. However, we finally found 7 specimens of the species from northeastern, eastern, and western Thailand which are deposited in THNHM and CUT. We confirm that Parastasia bigibbosa can be found in Thailand. We have compared images of the Subpeltonotus andamanae holotype (Ghai et al. 1988) reaching the conclusion that it has the same external morphology and male genitalia with P. bigibbosa. Wada (2015b) in his dissertation already recognized these characteristics and pointed out that S. andamanae was a junior synonymy of P. bigibbosa, but it was not a publication in accordance of ICZN (1999) and unfortunately disclaimed. Thus, in the present paper we synonymize P. andamanae with P. bigibbosa.</p> </div>	https://treatment.plazi.org/id/E853E5051377FFE4FF03D998FDBEF852	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Hongsuwong, Thitipong;Sanguansub, Sunisa;Jaitrong, Weeyawat	Hongsuwong, Thitipong, Sanguansub, Sunisa, Jaitrong, Weeyawat (2022): A new species and a new synonym in the scarab genus Parastasia Westwood, 1841 (Coleoptera: Scarabaeidae: Rutelinae), with a key to species from Thailand. Zootaxa 5205 (6): 547-562, DOI: https://doi.org/10.11646/zootaxa.5205.6.3
E853E5051379FFEAFF03D998FE35F9DE.text	E853E5051379FFEAFF03D998FE35F9DE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Parastasia bimaculata (Guerin-Meneville 1843)	<div><p>Parastasia bimaculata (Guérin-Méneville, 1843)</p> <p>(Figs. 40–50)</p> <p>Barymorpha bimaculata Guérin-Méneville, 1843: 41, plate XI, fig. 2. Type locality: Pulo Pinang, Malay Peninsula (type depository not known).</p> <p>Parastasia bimaculata (Guérin-Méneville, 1843): Burmeister 1844: 376; Westwood 1845: 99; Snellen van Vollenhoven 1864: 150; Ohaus 1898: 21; Ohaus 1900: 232, fig. 1; Arrow 1917: 42; Ohaus 1918: 33; Ohaus 1926: 111; Ohaus 1932: 130, Ohaus 1934: 101; Ohaus 1935: 5; Machatschke 1972: 40; Kuijten 1992: 35, figs. 25–29.</p> <p>Cyclocephala bimaculata Montrouzier, 1855: 23. Type locality: unknown; Reiche in Montrouzier 1860: 271 [junior synonymy].</p> <p>Material examined. Southern Thailand: 1 female (THNHM-I-09984, THNHM), Ranong province, Kay Hotel, 9.II.1967, N. Kobayashi leg.; 1 female (THNHM-I-09985, THNHM), Nakhon Si Thammarat province, Krungching waterfall, tropical rain forest, 21.I.2007, N. Pinkhaw [= N. Pinkaew] leg.; 1 male (THNHM-I-09986, THNHM), Nakhon Si Thammarat province, Sichon district, Khao Nan national park, Yod Nam waterfall, 21.II.2008, T. Jeenthong leg.; 1 male and 1 female (CTH), Nakhon Si Thammarat province, Promkiri district, Phrom Lok subdistrict, 12.III.2021, larva and pupa collected from the rotten log, 31.III.2021 – 14.IV.2021, emerged, C. Phothaworn leg.</p> <p>Diagnosis (based on Thai specimens). Male: Dorsal surface of body mostly orange to reddish brown; posterior portion of pronotum with a pair of round darkish spots; ground color of elytra reddish brown, with irregular yellowish bands; anterior margin of elytra with dark markings medially. Head rather small with convex eye, ratio of IOD and HW 0.65. Lateral margins of pronotum rimmed, while posterior margin convex without rim. Elytra with 11 rows of round punctures, each row with distinct shallow longitudinal impression. Pygidium widely oval, 0.48 as long as width; anterior and lateral portions of pygidium densely reticulate, remaining parts smooth and shiny. All tarsal claws simply, acuminate, sickle-shaped, internal claws clearly smaller than external claws. Male genitalia: Extremely asymmetric (see Figs. 48–50) with parameres fused together; in dorsal view, external margin of parameres swollen; surface variously pitted. Female: Similar to the male in body size, sculpturing, and coloration with the following exceptions: body color slightly darker than male; pygidium subtriangular and convex; posterior portion of pygidium foveate; abdominal ventrites, especially ventrites 4–6 narrow.</p> <p>Measurements. Male: TL 13.64–14.52 mm; BH 6.76–7.18 mm; EL 8.35–9.06 mm; EW 8.98–9.31 mm; PL 5.19–5.30 mm; PW 7.84–7.97 mm; HW 3.27–3.41 mm; IOD 2.04–2.10 mm; ED 1.42–1.44 mm. Female: TL 13.11–14.47 mm; BH 6.6–6.85 mm; EL 8.35–8.71 mm; EW 9.04–9.38 mm; PL 5.06–5.40 mm; PW 7.59–7.99 mm; HW 3.09–3.12 mm; IOD 2.02–2.04 mm; ED 1.32–1.33 mm.</p> <p>Differential diagnosis. The species can be easily distinguished from the other Thai species as follows: 1) posterior portion of pronotum with a pair of round darkish spots; 2) unclear dimorphism between both sexes; 3) all claws simple, sickle-shaped in both male and female; 4) parameres extremely asymmetric.</p> <p>Distribution. Thailand (Ranong and Nakhon Si Thammarat provinces, new records), India (Andaman Islands and Nicobar Islands); Myanmar (Rangoon) (Ohaus 1898; Arrow 1917); Malaysia (Malay peninsula and Borneo) (Guérin-Méneville 1843; Snellen van Vollenhoven 1864), Singapore (Ohaus 1898), Indonesia (Sumatra and Java) (Kuijten 1992), and Philippines (Kuijten 1992).</p> <p>Remarks. Kato et al. (2000) mentioned that P. bimaculata was associated with the flowers of Homalomena propinqua (= currently H. humilis) (Araceae) in Borneo. In Thailand, we have never observed P. bimaculata visiting flowers of H. humilis.</p> </div>	https://treatment.plazi.org/id/E853E5051379FFEAFF03D998FE35F9DE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Hongsuwong, Thitipong;Sanguansub, Sunisa;Jaitrong, Weeyawat	Hongsuwong, Thitipong, Sanguansub, Sunisa, Jaitrong, Weeyawat (2022): A new species and a new synonym in the scarab genus Parastasia Westwood, 1841 (Coleoptera: Scarabaeidae: Rutelinae), with a key to species from Thailand. Zootaxa 5205 (6): 547-562, DOI: https://doi.org/10.11646/zootaxa.5205.6.3
E853E5051379FFEEFF03DF9AFA24FBFA.text	E853E5051379FFEEFF03DF9AFA24FBFA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Parastasia Westwood 1841	<div><p>Key to species of Parastasia known from Thailand</p> <p>1 Small to medium in size, total length ˂ 20 mm; elytra with distinct rows of punctures; in lateral view, parameres not bilobed.................................................................................................... 2</p> <p>- Large in size, TL ≥ 20 mm; rows of punctures on elytra indistinct (Fig. 51); parameres slightly asymmetric, apex bilobed in lateral view (Figs. 61–62)............................................................ P. birmana Arrow, 1899</p> <p>2 All claws simple, sickle-shaped without branching (Fig. 58); male aedeagus asymmetric, parameres fused together (Figs. 48–50)............................................................. P. bimaculata (Guérin-Méneville, 1843)</p> <p>- External claw of meso- and metatarsi bifurcate; aedeagus symmetric or asymmetric, but parameres not fused together..... 3</p> <p>3 Propygidium and pygidium covered with decumbent setae (Figs. 35–36)......................................... 4</p> <p>- Propygidium and pygidium without long setae (Fig. 4)........................................................ 7</p> <p>4 Eyes narrow, ratio of IOD and HW ˃ 0.67 (Fig. 56); antennal clubs distinctly shorter than antennal segment 1–7 combined; mesotarsi of male somewhat enlarged, segment 5 as long as or longer than segment 1–4 combined (Fig. 56); median sac of endophallus membranous without any appendages or spines, but sometimes distinctly with sclerotic surface (Fig. 67)...... 5</p> <p>- Eyes broad, ratio of IOD and HW ˂ 0.60 (Fig. 57); antennal clubs clearly longer than antennal segment 1–7 combined; mesotarsi simple in both sexes, tarsal segment 5 shorter than segment 1–4 combined (Fig. 60); median sac of endophallus with numerous spines (Fig. 68)................................................................. P. bigibbosa Nonfried, 1891</p> <p>5 Dorsal surface mostly brownish (Fig. 53); mesotarsi clearly enlarged in male, segment 5 much longer than segments 1–4 combined............................................................................................ 6</p> <p>- Dorsal surface mostly orange-reddish (Fig. 52); segment 5 of mesotarsi as long as segments 1–4 combined in male......................................................................................... P. anomala Arrow, 1899</p> <p>6 Ground color of dorsal surface reddish brown to dark brown, posterolateral portions of pronotum with a yellow to testaceous patch; in dorsal view, male aedeagus symmetric. India, Bhutan, China, Vietnam, Laos, and northern Thailand.............................................................................................. P. indica Ohaus, 1898</p> <p>- Ground color of dorsal surface brownish with dark brown brands on pronotum and elytra (Fig. 53); aedeagus curve and asymmetric. Southern Thailand, Malaysia, Indonesia, and Philippines................... P. westwoodii Westwood, 1841</p> <p>7 Ground color of dorsal surface reddish, elytra unicolor (Figs. 1, 55); external margin of parameres sinuate in dorsal view (Figs. 13, 65); in lateral view, ventral margin of parameres plain without distinct concavity (Figs. 15, 66); anterior portion of median sac of endophallus with small spines, remaining followed by large spines (Figs. 16, 70).............................. 8</p> <p>- Ground color of dorsal surface orange, external and posterior portions of elytra black (Fig. 54); in dorsal view, parameres without concavity (Fig. 63); in lateral view, ventral margin of parameres thickly marginated and deeply concave one-fifth from base (Fig. 64); anterior portion of median sac of endophallus with few large spines, remaining followed by medium spines (Fig. 69)................................................................. P. masumotoi Wada &amp; Muramoto, 1999</p> <p>8 Scutellum and ventral surface reddish to dark reddish brown (Figs. 1–2, 55); in lateral view, basal of ventral margin of parameres without protrusion.................................................................................... 9</p> <p>- Scutellum and ventral surface nearly black; in lateral view, basal of ventral margin of parameres clearly protruding backward, process sharp and elongate as spinose formed................................. Parastasia selangorica Kuijten, 1992</p> <p>9 Rather small in size (Fig. 1); first row of punctures on elytra sinuate; metasternal process stout; in dorsal view, apex of parameres roundly convex (Fig. 13); in lateral view, dorsal and ventral margins almost straight (Fig. 15); median sac of endophallus with a cluster of dense small spines anteriorly, posterior part of median sac with five dark large spines ventrally (Fig. 16)....................................................... P. spinosa Hongsuwong, Sanguansub &amp; Jaitrong, new species</p> <p>- Medium in size (Fig. 55); first row of punctures on elytra mostly straight; metasternal process sharply produced; in dorsal view, apex of parameres almost truncate with a small carina near internal margin (Fig. 65); in lateral view, dorsal margin weakly concave, while ventral margin convex (Fig.66); median sac of endophallus with sparse small spines anteriorly, ventral of posterior part without dominantly large spines (Fig. 70).................................... sulcipennis Gestro, 1888</p></div> 	https://treatment.plazi.org/id/E853E5051379FFEEFF03DF9AFA24FBFA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Hongsuwong, Thitipong;Sanguansub, Sunisa;Jaitrong, Weeyawat	Hongsuwong, Thitipong, Sanguansub, Sunisa, Jaitrong, Weeyawat (2022): A new species and a new synonym in the scarab genus Parastasia Westwood, 1841 (Coleoptera: Scarabaeidae: Rutelinae), with a key to species from Thailand. Zootaxa 5205 (6): 547-562, DOI: https://doi.org/10.11646/zootaxa.5205.6.3
