Patrus garuda, Suksai & Gustafson & Sites & Sangpradub, 2021
publication ID |
https://doi.org/ 10.11646/zootaxa.4991.3.8 |
publication LSID |
lsid:zoobank.org:pub:F0FAE07E-4A90-4602-BCC5-6D80E158BB6C |
DOI |
https://doi.org/10.5281/zenodo.5042664 |
persistent identifier |
https://treatment.plazi.org/id/03BC87C1-FFE0-2247-0CC0-7F31FB5354CE |
treatment provided by |
Plazi |
scientific name |
Patrus garuda |
status |
sp. nov. |
Patrus garuda sp. nov.
( Figs. 2C View FIGURE 2 , 3C View FIGURE 3 , 4C View FIGURE 4 , 7 View FIGURE 7 , 13A View FIGURE 13 , 14A View FIGURE 14 )
Type material. HOLOTYPE: male (card mounted; aedeagus in microvial), “ THAILAND: Chiang Mai / Prov.; Doi Inthanon Natl. / Park; Siriphum Waterfall / 9.V.2002; L-401 // 18º32’N 98°31’E / 1460 m a.s.l. / UMC & CMU teams” ( UMC). GoogleMaps
PARATYPES (8 exs): THAILAND: Chiang Mai Province: Doi Inthanon Natl. Park., Huai Sai Luang Waterfall , 18°31’N 98°27’E, 1060 m a.s.l., 13.I.2003, leg. CMU team, 1 male ( UMC) GoogleMaps ; same locality except for, Siriphum Waterfall , 18°32’N 98°31’E, 1460 m a.s.l., 9.III.2002, leg. UMC & CMU teams, L-401, 3 males, 1 female ( UMC) GoogleMaps ; same locality except for, Siriphum Waterfall , 9.V.2002, leg. UMC & CMU teams, L-401, 1 male ( THNHM) GoogleMaps ; same locality except for, 14.XI.2002, leg. CMU team, 2 females ( THNHM, UMC) GoogleMaps .
Additional material. THAILAND: Chiang Mai Province: Doi Inthanon Natl. Park., streams downstream from Siriphum Falls , 1350–1400 m a.s.l. (10), 28.XII.1998, leg. P. Mazzoldi, 21 exs ( PMI) .
Diagnosis. Body form in lateral view strongly dorsoventrally convex, appearing humped in scutellar region; elytral glabrous region of male ( Figs. 2C View FIGURE 2 , 7A View FIGURE 7 ) cordiform, along suture extending ca. 7/9 length of elytra, laterally expanded in anterior 2/3 to considerably wider than pronotal glabrous region, posterior 1/3 strongly acuminate with rounded margins; female elytral glabrous region ( Figs. 3C View FIGURE 3 , 7E View FIGURE 7 ) dissimilar to male, ‘nycteriform’ (batwing-shaped); elytral apex of both sexes similar, evenly rounded without apicolateral sinuation, epipleural angle indistinct; male protibia ( Fig. 4C View FIGURE 4 ) wedge-shaped, protibial apex truncate with weakly prominent distolateral angle; male protarsus ( Fig. 4C View FIGURE 4 ) over 1/2 length of protibia, protarsomeres 1–4 mostly similar in width; mesoventrite without medial pit; aedeagus ( Fig. 7B–D View FIGURE 7 ) with median lobe weakly tapered, apex weakly constricted in lateral view ( Fig. 7C View FIGURE 7 ); female reproductive tract ( Fig. 7G View FIGURE 7 ) with additional sclerite between gonocoxae ( Fig. 7F View FIGURE 7 ), fertilization duct as in Fig. 7H View FIGURE 7 .
Description. Habitus. Size. Male: TL = 12.5–14.0 mm, TW = 7.5–8.0 mm; female: TL = 12.0–13.0 mm, TW = 6.8–7.5 mm.
Body form elongate oval, more attenuated anteriorly than posteriorly, maximum width just posterior of humeral angle; in lateral view dorsoventrally strongly convex, maximum convexity posterior to scutellar region, more depressed posteriorly than anteriorly creating humped appearance.
Coloration ( Figs. 2C View FIGURE 2 , 3C View FIGURE 3 ). Dorsally head, pronotum, and elytra margined with golden pubescence; glabrous regions of head pronotum and elytra black with reticulation creating brassy sheen. Pronotal and elytral lateral margins dark. Venter dark, reddish-brown to black. Middle and hind legs from trochanter to tarsus and ultimate abdominal ventrite lighter in color, red to orangish-red.
Head. Head capsule broad, convex. Labrum short, ca. 3.5× wider than long; setose medially with setae situated in large deep punctures; apex broadly rounded. Clypeus narrow, ca. 1/2 width of labrum; strongly reticulate and densely punctured, reticulation hatched in appearance with numerous short, well-impressed transverse lines. Frons similarly with strong hatched reticulation and dense punctation; pseudofrontal ridge present; furrow beneath pseudofrontal ridge very narrow, without setae. Vertex also with strongly impressed hatch reticulation and dense punctation between dorsal eyes, reticulation becoming effaced in narrow band on occipital region. Dorsal eye delimited by strong orbital furrow; distance between dorsal eyes ca. 2.75× diameter of an eye; interorbital area strongly setose.
Thorax. Pronotum ( Figs. 2C View FIGURE 2 , 7A View FIGURE 7 ) with narrow lateral margins; pronotal transverse impressed line absent; lateral pubescence anteriorly extending onto pronotal disc as far as 2/3 width of dorsal eye; pronotal glabrous region densely and uniformly punctate with small weakly impressed punctures, strongly reticulate with uniform wellimpressed hatched reticulation similar to frons and vertex. Scutellar shield visible. Protrochanter with setose line along ventral (anterior) face. Profemur with setigerous punctures along anterior margin of ventral face, posterior margin of ventral face with row of setae along basal 2/3 ending with patch of longer, denser setae. Protibia ( Fig. 4C View FIGURE 4 ) wedge-shaped in males, not constricted basally, ventral (inner) margin straight; distal apex truncate, distolateral angle slightly prominent. Male protarsus ( Fig. 4C View FIGURE 4 ) ca. 2.5/4 length of protibia, protarsomeres with distolateral angle round, not overlapping on following tarsomere, lateral margins weakly rounded, fifth tarsomere 2× length of fourth, with lateral margins weakly rounded. Elytra ( Figs. 2C View FIGURE 2 , 7A View FIGURE 7 ) with narrow lateral margins becoming gradually widened apically; elytral apex evenly rounded, without apicolateral sinuation, epipleural angle indistinct, sutural angle weakly rounded; elytral glabrous region along suture extending ca. 7/9 length of elytra, considerably wider than pronotal glabrous region; cordiform in males, with anterior 2/3 laterally expanded and, posterior 1/3 strongly acuminate; lateral pubescence in anterior 2/3 with rounded concave margins, posterior 1/3 convex rounded through apical acumination; reticulation and punctation similar to pronotal glabrous region. Mesoventrite without medial pit.
Sexual dimorphism. Females smaller in size, more narrowly elongate in dorsal view ( Fig. 3C View FIGURE 3 ), with weaker lateral expansion of the elytra post humeral region resulting in narrower habitus. Glabrous region of female elytra different ( Figs. 3C View FIGURE 3 , 7E View FIGURE 7 ), ‘nycteriform’ (batwing-shaped), extending ca. 7/9 length of elytra, broad in anterior 4/5 occupying 10/11 elytral width, lateral margins weakly rounded, abruptly acuminate in posterior 1/5, posterolateral corners with jagged appearance, not produced into large points, posterior margin briefly straight before becoming convex near suture. Protibia of female shorter than male.
Male genitalia. Aedeagus ( Fig. 7B View FIGURE 7 ) with median lobe ca. 5/6 length of parameres, weakly tapered, apical 1/6 of aedeagus acuminate with straight lateral margins, apex weakly constricted in lateral view ( Fig. 7C View FIGURE 7 ), operculum as in ( Fig. 7D View FIGURE 7 ); parameres narrowly rounded apically ( Fig. 7B View FIGURE 7 ).
Female genitalia. Reproductive tract with large sac-like spermatheca ( Fig. 7G View FIGURE 7 ); fertilization duct sclerotized, highly convoluted ( Fig. 7H View FIGURE 7 ); small sclerite present posterior to oviduct; additional round sclerite present between gonocoxae; gonocoxae narrow, apically rounded, lateral margins weakly sinuate ( Fig. 7F View FIGURE 7 ).
Variation. There is variation in size and width among the material examined. Large males also tend to be relatively broader in total body width than smaller males. Females vary primarily in total body length.
Differential diagnosis. Patrus garuda sp. nov. is most similar to P. landaisi , though being unique among the known P. landaisi species group in Thailand in having broadly rounded elytral apices in both sexes ( Figs. 2C View FIGURE 2 , 3C View FIGURE 3 , 7A, 7E View FIGURE 7 ). The female of P. garuda sp. nov. shares with that of P. salvazai a rounded elytral apex and indistinct epipleural angle, however, the elytral glabrous region of the new species is very different from the cordiform glabrous region in P. salvazai ( Figs. 3G View FIGURE 3 , 11E View FIGURE 11 ). The male of P. garuda sp. nov shares several characteristics with that of P. landaisi ( Table 2) but can be distinguished by the rounded elytral apices and aedeagal features. The aedeagus of P. garuda sp. nov has the median lobe more strongly tapered towards the apex, which is more strongly acuminate ( Fig. 7B View FIGURE 7 ) compared to that of P. landaisi in which the median lobe is more parallel-sided and less tapered to towards the apex, with the apex much less constricted ( Fig. 8B View FIGURE 8 ).
Etymology. This species is named after Garuda, the legendary bird-like creature of Hindu and Buddhist mythology, and national emblem of Thailand. The name is in reference to the wing-like glabrous region of the female elytra and is treated as a noun in the nominative case, standing in opposition.
Distribution. This species is currently only known from two high-elevation waterfalls and associated streams ( Fig. 13A View FIGURE 13 ) within Doi Inthanon National Park, Chiang Mai Province, Thailand ( Fig. 14A View FIGURE 14 ).
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.
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