Sinopoda steineri , Jäger, Peter, 2012

Jäger, Peter, 2012, Revision of the genus Sinopoda Jäger, 1999 in Laos with discovery of the first eyeless huntsman spider species (Sparassidae: Heteropodinae), Zootaxa 3415, pp. 37-57: 39-41

publication ID

10.5281/zenodo.212054

persistent identifier

http://treatment.plazi.org/id/502787FB-016A-FFEF-AEAA-FDD05A170273

treatment provided by

Plazi

scientific name

Sinopoda steineri
status

spec. nov.

Sinopoda steineri  spec. nov.

Figs 1 –5View FIGURES 1 – 3View FIGURES 4 – 13, 81View FIGURE 81

Type material. Holotype: female, LAOS: Luang Nam Tha Province: Tham  Nam Eng, N 20 ° 43 ' 25.5 '', E 101 ° 9 ' 18.6 '' [730 m altitude], cave in limestone, by hand, 9 February 2005, H. Steiner leg., field number of H. Steiner 091/05 ( SMFAbout SMF, PJ 3383).

Diagnosis. Medium-sized Heteropodinae, body length of female: 12.7. Female ( Figs 1–3View FIGURES 1 – 3) intermediate between those of S. taa  spec. nov. and S. tham  spec. nov. in respect to the shape of epigynal pockets, orientation of lateral furrows, and the shape of the internal duct system, but can be distinguished from females of those species by 1. Parallel part of internal duct system similarly long as in S. tham  spec. nov. (longer than in S. taa  spec. nov.), but with width at glandular appendages wider than at posterior part (reverse in S. tham  spec. nov.), 2. Lobal septum and epigynal pockets forming an anchor (triangle in S. taa  spec. nov., broad reverse “T” in S. tham  spec. nov.), 3. Lateral furrows long, reaching lateral margins of lateral lobes and running diagonally (mostly longitudinal in S. tham  spec. nov., transversal in S. taa  spec. nov.).

Etymology. The species is dedicated to Helmut Steiner who collected a large amount of cave spiders and other cave-dwelling animals from SE Asia; name in genitive case.

Description. Female (holotype): Prosoma length 5.6, prosoma width 5.9, anterior width of prosoma 3.1, opisthosoma length 7.1, opisthosoma width 4.1. AME 0.28, ALE 0.42, PME 0.34, PLE 0.43, AME–AME 0.19, AME–ALE 0.05, PME–PME 0.25, PME–PLE 0.38, AME–PME 0.36, ALE–PLE 0.37, clypeus AME 0.40, clypeus ALE 0.35. Spination: Palp: 131, 101, 2121, 1014; legs: femur I–III 323, IV 331; patella I–IV 000; tibia I 1026, II 1 (2)026, III–IV 2026; metatarsus I–II 0 0 0 4, III 2016, IV 3036. Ventral metatarsus III with sparse double row of stiff bristles in proximal half, IV with dense double row of bristles along entire length and distal patch of bristles.

Leg formula: 2413. Measurements of palp and legs: Palp 9.4 (2.9, 1.4, 2.1, -, 3.0), leg I 26.2 (7.1, 2.8, 7.5, 6.6, 2.2), leg II 28.8 (7.9, 3.1, 8.5, 7.1, 2.2), leg III 24.5 (7.1, 2.6, 6.9, 5.9, 2.0), leg IV 27.1 (7.6, 2.5, 7.5, 7.2, 2.3). Cheliceral furrow with 3 anterior and 4 posterior teeth, and with ca. 60 denticles in elongated patch close to anterior teeth. Margin of chelicerae close to fang base with one bristle. Palpal claw with 8 teeth. Sternum, ventral coxae and ventral femora covered sparsely with long setae, appendages and body otherwise with shorter setae.

Copulatory organ in diagnosis ( Figs 1–3View FIGURES 1 – 3). Epigynal field wider than long, without anterior bands or slit sensilla. Lateral lobes fused, posteriorly with median incision. Epigynal pockets running from latero-posterior to medio-anterior, where copulatory openings are situated. Lateral furrows situated close to lateral ends of pockets, distinct, running to lateral margins of lateral lobes. Lobal septum moderately wide. Glandular appendages narrow, pointed, reaching posteriorly only barely posterior half of internal duct system. Posterior part of spermathecae bulging slightly laterally, fertilisation ducts arising posterio-laterally. Membranous expandable sac (as in Figs 19, 23View FIGURES 18 – 23) between fertilisation ducts reaching anterior end of internal duct system when expanded [dissected and stored in microvial]. Sclerotised spheres present along one epigynal pocket.

Colouration in ethanol ( Figs 4–5View FIGURES 4 – 13): Yellowish- to reddish-brown. Dorsal prosoma yellowish-brown with fovea and cuticular radial pattern reddish-brown. Sternum, ventral coxae and gnathocoxae yellowish-brown, labium reddish-brown with distal part brighter. Chelicerae deep reddish-brown. Legs deep yellowish-brown. Dorsal opisthosoma with irregular pattern especially in posterior half, ventral opisthosoma without pattern, but with velvet-like appearance through dense cover of setae.

Male. Unknown.

Distribution. Only known from the type locality ( Fig. 81View FIGURE 81).

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Sinopoda