Haplocosmia sherwoodae Lin & Li, 2022

Lin, Ye-Jie, Yan, Xunyou & Li, Shuqiang, 2022, A new species of the tarantula genus Haplocosmia (Araneae, Theraphosidae) from Tibet, China, Biodiversity Data Journal 10, pp. 82682-82682 : 82682

Haplocosmia sherwoodae Lin & Li sp. n.

Materials

Type status: Holotype. Occurrence: individualID: IZCAS-Ar42679; Taxon: scientificName: Haplocosmia sherwoodae; order: Araneae ; family: Theraphosidae ; genus: Haplocosmia ; Location : country: China; stateProvince: Tibet; county: Xigaze ; municipality: Nyalam ; locality: from Zham to Guomen ; verbatimElevation: 2333; verbatimLatitude: 27.9785°N; verbatimLongitude: 85.9782°E; Event: year: 2021; month: 6; day: 13; Record Level: institutionCode: IZCAS

Description

Male (holotype, IZCAS-Ar42679) (Fig. 1 A-H, Fig. 2 A and B, Fig. 3 A-C). Carapace 8.09 long, 6.73 wide, brown with long white-purple setae. Opisthosoma brown, with long white and black hair (Fig. 1 A). Eye group 1.28 long, 0.93 wide (Fig. 1 B). MOA 0.71 long, anterior width 0.72, posterior width 0.96. Eye sizes and interdistances: ALE 0.40, AME 0.33, PLE 0.32, PME 0.37; ALE-AME 0.07, AME-AME 0.11, PLE-PME 0.04, PME-PME 0.56. Fovea slightly procurved. Chelicerae dark brown, with white hair, eighteen intercheliceral pegs, eight of them obvious, with prolateral keeled ridge. promargin with 10 stout teeth, basomesally with 24 denticles (Fig. 1 G, H). Labium wider than long, with 286 cuspules. Sternum yellow brown with three pairs of sigilla (Fig. 1 D). Legs with long and short setae. Tarsus I-IV with scopula and many setae laterally swollen, scopula on tarsus IV divided by setae, all tarsi 2 claws, without denticle. Leg measurements: I 20.43 (5.61 + 2.44 + 5.07 +3.68 + 3.63), II 22.27 (5.84 + 2.94 + 5.92 + 3.73 + 3.84), III 17.09 (4.51 + 2.07 + 3.63 + 3.82 + 3.06), IV 23.69 (6.30 + 2.67 + 5.56 + 5.83 + 3.33). Leg formula: 4213.

Male palpal bulb (Fig. 2 A and B, male palp with bulb Fig. 3 A-C). Bulb oval, embolus bow-shaped, slightly curved 180°, with A, PI and PS. Distal edge of embolus relatively flat. Maxillae with lyra setae ventrally (Fig. 1 C). Stridulatory lyra paddle-shaped (Fig. 1 E and F).

Female unknown.

Diagnosis

Haplocosmia sherwoodae sp. n. is found at 2356 m elev., in a higher, more montane environment, close to areas of permanent snowfall. (vs. H. nepalensis Schmidt & von Wirth, 1996 which is only known to occur at an elevation of <1200 m in Kathmandu ( Schmidt and von Wirth, V. 1996, West et al. 2012). The male of H. sherwoodae sp. n. is similar to H. nepalensis by the shape of the bulb, but it can be distinguished from H. nepalensis by the PS keel elongate, with distinct BL, originating ventrally at ventro-medial aspect of palpal bulb (vs. PS non-elongate, without BL and not originating ventrally at ventro-medial aspect of palpal bulb in H. nepalensis ) and the length of embolus base to the width of the bulb being 3:1 (vs. 2:1 in H. nepalensis ) (Figs. 2A and B).

Etymology

The species is named after Miss Danni Sherwood, who confirmed the validity of the new species; noun (name) in genitive case.

Distribution

Known only from the type locality.

Figures

Figure 1. Haplocosmia sherwoodae sp. n., holotype male. A male habitus, dorsal; B ocular tubercle; C right palp maxillae; D sternum; E stridulatory lyra, lateral view; F same, ventral view; G chelicerae, retrolateral view; H same, prolateral view.

Figure 2. Haplocosmia sherwoodae sp. n., holotype, right palp bulb, rotated horizontally. A retrolateral view; B prolateral view.

Figure 3. Haplocosmia sherwoodae sp. n., holotype, left palp. A prolateral view; B ventral view; C retrolateral view.