Evolution of nuptial-gift-related male prosomal structures: taxonomic revision and cladistic analysis of the genus Oedothorax (Araneae: Linyphiidae: Erigoninae) Author Lin, Shou-Wang Author Lopardo, Lara Author Uhl, Gabriele text Zoological Journal of the Linnean Society 2022 2021-11-20 195 417 584 journal article 115951 10.1093/zoolinnean/zlab033 75b10efe-a17d-4d10-b46e-094c6a7ebf01 0024-4082 6967774 BE2B3859-8F6A-4543-8A69-91840F82377B MITRAGER LOPCHU ( TANASEVITCH, 2015 ) COMB. NOV. ( FIGS 38W , 40X , 54 ; SUPPORTING INFORMATION, FIG. S3J ) Oedothorax lopchu Tanasevitch, 2015: 388 , figs 51–60 (Dm). Type material: Holotype : India : Himalayas , West Bengal , Darjeeling District , between Ghoom and Lopchu , 13 km from Ghoom , northern slope, 2000 m , sifting in forest; ♂ 14.x.1978 , leg. C. Besuchet & I. Löbl ( MHNG , examined) . Paratypes : collected together with the holotype ; same locality, 1♂ 12.x.1978 , leg. C. Besuchet & I. Löbl ( MHNG , examined) . Diagnosis: Males: This species can be recognized by its slightly elevated PME-bearing region (less elevated then species like M. falciferoides and M. modesta ), the median-long stout setae at the ocular region, and the broad-based, conical palpal tibial prolateral apophysis, which is round at tip and has no enlarged setal base. Description: Male ( paratype ): Total length: 1.95. Prosoma: 0.93 long, 0.75 wide, PME-bearing region slightly elevated, with median-long stout setae at ocular region ( Fig. 38W ). Eyes: AME-AME: 0.02, AME width: 0.03, AME- ALE: 0.04, ALE width: 0.08, ALE-PLE: 0.01, PLE width: 0.08, PLE-PME: 0.05, PME width: 0.07, PME- PME: 0.06. Clypeus: not hirsute. Sternum 0.50 long, 0.54 wide. Chelicerae: stridulatory striae rows widely and evenly spaced. Legs: Tm I: 0.51. Pedipalp: patella prolateral proximal vertical macrosetae absent; tibia with one prolateral, two retrolateral trichobothria; TPS scaly, retrolaterally pointed; TPA moderately elevated, without enlarged setal base; TRA bent retrolaterally ( Fig. 54C ); PC median-sized, base not visible from dorsal view, distal setae close to distal clasp, distal clasp without striae, clasp directed retrolaterally ( Fig. 54A ); T without papillae; PT short, without papillae; TS short, wide at base, without papillae; MSA absent; DSA tip pointed, retrolaterally curved; EM flat, without papillae, exceeds ARP ( Fig. 54D ); ARP pointed, angled on dorsal side, with striae on dorsal side behind the angle; LER without striae, extended dorsal to E; radix with bulging membranous part below the junction with E; VRP absent; TP round and thick at tip, with thicker part mesal to the tip, fitted to depression on T; E retrolaterally spiral, anterior margin at base slightly wavy ( Fig. 54B ). Opisthosoma: dorsal pattern see Fig. 40X ; PMS with mAP, without AC; PLS with triad, one AC ( Fig. 54E ).