Amauropelma staschi, Jager, 2012

Jäger, Peter, 2012, Asian species of the genera Anahita Karsch 1879, Ctenus Walckenaer 1805 and Amauropelma Raven, Stumkat & Gray 2001 (Arachnida: Araneae: Ctenidae), Zootaxa 3429 (1), pp. 1-63 : 45-47

publication ID	https://doi.org/ 10.11646/zootaxa.3429.1.1
persistent identifier	https://treatment.plazi.org/id/C8488786-1137-FFB3-FF71-F9A154CCFCD0
treatment provided by	Felipe
scientific name	Amauropelma staschi
status	sp. nov.

Treatment

Amauropelma staschi View in CoL spec. nov.

Figs 179 View FIGURE 179 , 187–192 View FIGURES 184–189 View FIGURES 190–192

Type material. Holotype male ( SMF), India, Uttarakhand, Dhanolti village , N 30°25.5', E 78°14.9', 2200 m altitude, Y.M. Marusik leg. 11.–12.V.1999. GoogleMaps

Etymology. This species is named in honour of my secondary school Latin and ancient Greek teacher, Gottfried Stasch (Paderborn, Germany), for his patient teaching, an effort which is often only recognised by students as valuable many years after their school time; name in genitive case.

Diagnosis. Small Ctenidae (total length male 7.9). Similar to A. beyersdorfi spec. nov. in having the RTA sticking out at an almost right angle from the tibia, and to all other Asian congeners in having the tegular apophysis arising centrally from tegulum ( Fig. 191 View FIGURES 190–192 ). Distinguished from all known Amauropelma spp. by the special shape of the tegular apophysis, i.e. the strongly concave prolateral side, and the two sclerotised subdistal embolic apophyses ( Fig. 191 View FIGURES 190–192 ).

Description. Male (holotype). PL 4.1, PW 3.3, AW 1.5, OL 3.5, OW 2.1. Eye diameters and interdistances: AME 0.13, ALE 0.15, PME 0.16, PLE 0.16, AME–AME 0.10, AME–ALE 0.16, PME–PME 0.09, PME–PLE 0.27, AME–PME 0.09, ALE–PLE 0.11, clypeus AME 0.10, clypeus ALE 0.22. Palp and leg measurements: palp

III p012, d111, r012, IV p012, d111, r002; patellae I–II 000, III–IV 001; tibiae I–II p010, v22222, III p11, d111, r11, v222, IV p11, d111, r11, v222; metatarsi I–II p110, r 110, v222, III p112, d010, r112, v222, IV p112, d010, r112, v322. Chelicerae with 3 promarginal, 4 retromarginal teeth, without denticles. Retromargin of chelicerae close to fang base with 1 bristle. Tarsi and metatarsi without scopula. Claw tufts arising separately, but intermingle distally. Leg claws I–II with 4, III with 3, and IV with 4 secondary teeth. Position of tarsal organ: I 0.78, II 0.77, III 0.70, IV 0.75.

Palp as in diagnosis ( Figs 190–192 View FIGURES 190–192 ). Embolus arising in a 9-o’clock-position from tegulum, with distal groove and large membranous areas in its proximal half. Conductor arising in a 1- to 1.30-o’clock position from tegulum. Tegular apophysis arising centrally, moderately excavated at its dorsal side. RTA with broad base and convex distal margin, distal apex dorso-distad. Patella without distinct apophysis, retrolateral side slightly swollen.

Colour ( Figs 187–189 View FIGURES 184–189 ). Deep yellowish-brown. Dorsal prosoma with eyes marked with black rings, faint radial markings, narrow dark margin indistinct; fovea distinct, reddish-brown. Chelicerae same colour as dorsal prosoma. Sternum, labium, gnathocoxae, ventral coxae yellowish-brown without pattern. Legs strong yellowish brown, metatarsus III–IV distinctly darker (reddish-brown). Dorsal opisthosoma with strong and distinct pattern consisting of partly fused leopard-like patches. Lateral opisthosoma with patches especially in posterior two thirds. Ventral opisthosoma with less and separated patches.

Female. Unknown.

Distribution. Known only from the type locality ( Fig. 179 View FIGURE 179 : 2).