Psiloderces penajamensis
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Ordo: Araneae
Familia: Psilodercidae
Genus: Psiloderces
Name
Psiloderces penajamensis Li & Chang sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Types
Holotype: ♂ (IZCAS), Indonesia, East Kalimantan, Penajam, Camp of International Timber Corporation of Indonesia, 1°5.2915'S, 116°41.0938'E, 64 m, 16.VIII.2014, H. Zhao & Z. Yao.
Etymology
The species name is an adjective referring to the type locality.
Diagnosis
The male of P. penajamensis sp. nov. can be recognized by the structure of laminar apophysis of the bulb that arises distally, bearing the embolus and bulge (Fig. 17B) (vs. absence of laminar apophysis in congeners), a relatively short clypeal protrusion in which the length does not exceed the anterior tip of the carapace (vs. a clypeal projection that exceeds the anterior tip of carapace).
Description
Male (Holotype). Total length 1.20; carapace 0.50 long, 0.60 wide; abdomen 0.70 long, 0.50 wide. Carapace round and brown, with 3 longitudinal dark brown bands, median band and lateral bands nearly the same width (Fig. 16B). Chelicerae brown (Fig. 29A). Clypeus dark brown, bearing few setae, with short medial projection, length does not exceed the anterior edge of carapace, (Fig. 16A, B). Endites brown. Labium dark brown. Sternum dark brown. Abdomen elongated, dorsum with dark brown patches concentrated posteriorly (Fig. 16B), antero-ventrally dark brown with complex patterns (Fig. 16C). Legs uniformly brown; measurements: I–III missing, IV 6.30 (1.56, 0.16, 1.90, 1.80, 0.88). Palp (Fig. 17A–D): femur slender, 3 times longer than patella; patella not swollen; tibia 1.5 times shorter than femur; cymbium almost as long and wide as tibia, protrusion darkens distally; bulb pale yellow, pyriform with bulge, laminar apophysis and embolus arise distally; laminar apophysis sheet-like, almost as long as width of tegulum; laminar apophysis adjacent to embolus, embolus dark short, and pointed; blunt bulge adjacent to embolus (Fig. 17B). Female. Unknown.
Distribution
Known only from the type locality (Fig. 30).
Original Description
- Chang, W; Li, S; 2020: Fourteen new species of the spider genus Psiloderces Simon, 1892 from Southeast Asia (Araneae, Psilodercidae) ZooKeys, 902: 61-105. doi
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