Anemesia pococki, Zonstein, 2018

Zonstein, Sergei, 2018, A revision of the spider genus Anemesia (Araneae, Cyrtaucheniidae), European Journal of Taxonomy 485, pp. 1-100 : 15-17

publication ID	https://doi.org/ 10.5852/ejt.2018.485
publication LSID	lsid:zoobank.org:pub:55A0F74D-FA80-4C6A-AD74-B49C9061A449
DOI	https://doi.org/10.5281/zenodo.3848287
persistent identifier	https://treatment.plazi.org/id/0A90722E-CDDE-4595-A948-8E2E014C2153
taxon LSID	lsid:zoobank.org:act:0A90722E-CDDE-4595-A948-8E2E014C2153
treatment provided by	Valdenar
scientific name	Anemesia pococki
status	sp. nov.

Treatment

Anemesia pococki View in CoL sp. nov.

urn:lsid:zoobank.org:act:0A90722E-CDDE-4595-A948-8E2E014C2153 Figs 3 View Figs 1–9 , 16 View Figs 10–17 , 27 View Figs 27–33 , 50 View Figs 48–62 , 64 View Figs 63–77 , 78 View Figs 78–89 , 92 View Figs 90–98 , 105 View Figs 99–107 , 119 View Figs 117–124 , 143–144 View Figs 143–157 , 158–160 View Figs 158–172 , 175 View Figs 173–187 , 193–194 View Figs 188–196 , 228–229 View Figs 224–244 , 269–270 View Figs 266–277 , 291, 306–307, 369

Diagnosis

Anemesia pococki sp. nov. generally resembles a paler coloured version of A. birulai . However, it differs from the latter species by the aspinose cymbium and a less tapering embolus in males ( Figs 175 View Figs 173–187 , 193– 194 View Figs 188–196 ; cf Figs 173 View Figs 173–187 , 188–190 View Figs 188–196 ), as well as by less sclerotised and more diverged receptacles in females ( Figs 228–229 View Figs 224–244 ; cf Figs 224–227 View Figs 224–244 ).

Etymology

The specific name is a patronym in honor of Dr Reginald I. Pocock, the noted British arachnologist (1863–1947), who provided and published many studies on the Mygalomorphae ; he described, in particular, both the genus Anemesia in 1895 and its type species a few years earlier (1889).

Material examined

Holotype

TURKMENISTAN: Ƌ, surroundings of Nardevanly spring, Zulfagar Mts, 900 m, 35°47′ N, 61°21′ E, 16 Apr. 1993, S. Zonstein leg. ( SMNH).

GoogleMaps

Paratypes

TURKMENISTAN: 4 ƋƋ, 7 ♀♀, same collection data as for holotype but 600–1000 m, 16–17 Apr. 1993 ( SMNH).

Description

Male (holotype)

HABITUS. See Fig. 3. View Figs 1–9

MEASUREMENTS. TBL 13.10, CL 5.63, CW 4.73, LL 0.63, LW 1.05, SL 2.77, SW 2.53.

COLOUR. Carapace light brownish orange with anterior edge darker and thoracic part lighter, chelicerae light orange; palps and legs dorsally less intensive orange; sternum, labium, maxillae and legs ventrally pale brownish yellow; eye tubercle blackened; abdomen dorsally pale yellowish grey with brown pattern

consisting of moderately wide median lanceolate spot and six paired transverse and slightly inclined short stripes, ventral part of abdomen pale yellow, spinnerets pale brownish yellow.

PROSOMA. Clypeus and eye tubercle as shown in Fig. 50 View Figs 48–62 . Eye diameters and interdistances: AME 0.16(0.20), ALE 0.27, PLE 0.21, PME 0.10, AME–AME 0.15(0.11), ALE–AME 0.09(0.07), ALE–PLE 0.12, PLE–PME 0.03, PME–PME 0.44. Thoracic fovea short and nearly pit-like, with anterior edge slightly recurved. Cheliceral rastellum composed of about 25 spikes grouped both in one transverse row in front of fang base and irregularly on low mound. Each cheliceral furrow with nine promarginal teeth and seven to eight smaller retromarginal teeth. Sternum, labium and maxillae as shown in Fig. 92 View Figs 90–98 . Maxillae with 30–32 cuspules each.

SPINATION. Palp: femur d3, pd2; patella pd1; tibia p1, r1, v1. Leg I: femur d5, pd3, rd2–3; patella p1; tibia p2, v5+m; metatarsus d1, pd2, v6. Leg II: femur d5, pd3, rd1; patella p1; tibia p3, v8; metatarsus p3, v7. Leg III: femur d4, pd3, rd3; patella p3, r2; tibia d1, p3, r3, v8; metatarsus pd4, p3, r2, v9; tarsus pv3. Leg IV: femur d5, p3, r3; tibia d1, p3, r3, v8; metatarsus pd2, p3, r7, v7; tarsus p2. Cymbium, patella IV and tarsi I and II aspinose.

LEGS. Tibia and metatarsus I as shown in Fig. 119 View Figs 117–124 . Scopula: distal on metatarsi I–II, entire on tarsi I and II, divided on tarsi III, vestigial on tarsi IV. Trichobothria: 2 rows of 8 each on tibiae, 12–14 on metatarsi, 12–13 on tarsi. PTC I–III with 9–10 teeth on both outer and inner margin, PTC IV with 8 and 5–7 teeth respectively.

PALP. Tibia, cymbium and palpal organ as shown in Figs 175 View Figs 173–187 , 193–194 View Figs 188–196 . Tibia swollen, with few spines and numerous ventral thick bristles ( Fig. 175 View Figs 173–187 ). Embolus tapering slightly curved ( Figs 193–194 View Figs 188–196 ).

SPINNERETS. See Fig. 269 View Figs 266–277 . PMS: length 0.38, diameter 0.20. PLS: maximal diameter 0.57; length of basal, medial and apical segments 0.92, 0.67, 0.33; total length 1.92; apical segment triangular.

Female (paratype)

HABITUS. As shown in Figs 16 View Figs 10–17 , 27. View Figs 27–33

MEASUREMENTS. TBL 18.90, CL 6.03, CW 4.74, LL 0.67, LW 1.18, SL 2.95, SW 2.62.

COLOUR. Similar to that of male, but slightly paler.

PROSOMA. Clypeus and eye tubercle as shown in Fig. 64 View Figs 63–77 . Eye diameters and interdistances: AME 0.16(0.22), ALE 0.33, PLE 0.22, PME 0.12, AME–AME 0.20(0.14), ALE–AME 0.14(0.11), ALE–PLE 0.13, PLE–PME 0.03, PME–PME 0.54. Cheliceral rastellum consists of 20–25 spikes located in front of fang base and on low mound (as in Figs 143–144 View Figs 143–157 ). Each cheliceral furrow with 7 promarginal teeth and 5–6 smaller retromarginal teeth. Sternum, labium and maxillae as shown in Fig. 92 View Figs 90–98 . Maxillae with 21–26 cuspules each.

LEGS. Scopula: entire on metatarsus I, distal on metatarsus II, entire on palpal tarsus and tarsus I, narrowly divided on tarsus II, elsewhere absent. Trichobothria: 2 rows of 6–8 each on tibiae, 10–14 on metatarsi, 11–13 on tarsi, 8–9 on palpal tarsus. Trichobothrial bases and tarsal organ of leg I as shown in Figs 158–159 and 160 View Figs 158–172 , respectively. Palpal claw with 4 promarginal teeth. PTC I–II with 5–6 teeth on each margin; PTC III with 4–5 teeth on outer, 2–3 teeth on inner margins; PTC IV with 4 and 0–2 teeth, respectively.

SPINATION. Palp: femur pd1; patella pd3, pv1; tibia pd3, p3, v9–10; tarsus v4–5. Leg I: femur pd1; patella p1; tibia p2, v4; metatarsus v5. Leg II: femur pd1; patella p1; tibia p3, v4; metatarsus p1, v7. Leg III: patella p3; tibia d1, p2–3, r1–2, v4; metatarsus d1, pd4, rd3, v7; tarsus p1, v1. Leg IV: tibia v6; metatarsus pd1, rd2, v9. All femora with dorsal median row of 6–8 long slender bristles; patella IV and tarsi I, II and IV aspinose.

SPERMATHECAE. Multilobate with 2–3 receptacles set on common base (as in Fig. 228 View Figs 224–244 ).

SPINNERETS. See Fig. 270 View Figs 266–277 . PMS: length 0.52, diameter 0.25. PLS: maximal diameter 0.60; length of basal, medial and apical segments 1.10, 0.67, 0.45; total length 2.22; apical segment triangular. Spigots as shown in Fig. 291 View Figs 291–305 .

Variation

The length of the carapace varies from 5.26 to 5.70 in males and from 5.15 to 6.37 in females. The colouration varies very narrowly throughout the specimens. In females the number of retromarginal cheliceral teeth ranges from 5 to 8 (as in Fig. 78 View Figs 78–89 ). Variants in the shape of the spermathecae are shown in Figs 228–229 View Figs 224–244 .

Habitat

Montane cereal steppe on a stony substrate, with dominating Hordeum bulbosum L. and Andropogon sp. ( Fig. 307 View Figs 306–313 ).

Distribution

The species is known only from the type locality (see Fig. 369).