Arctosa indica Tikader & Malhotra, 1980

Sankaran, Pradeep M., Caleb, John T. D. & Sebastian, Pothalil A., 2021, Revision of Indian wolf spiders: I. Genus Arctosa C. L. Koch, 1847 (Araneae Lycosidae, Tricassinae), Zootaxa 4908 (4), pp. 489-504 : 495-497

Arctosa indica Tikader & Malhotra, 1980

Figs 5–6

Arctosa indicus Tikader & Malhotra, 1980: 371 , figs 242–246. Tikader & Biswas 1981: 58, plate VIII, figs 94–95. Biswas & Biswas 1992: 438. Yin et al. 1997: 84, fig. 37a–f. Song et al. 1999: 319, figs 188P, 189A. Gajbe 2004: 31. Majumder 2005: 26. Gajbe 2007: 505, figs 252–256. Dhali et al. 2012: 1200. Yin et al. 2012: 796, fig. 397a–f.

Arctosa indica— Yin et al. 1993: 9, figs 1–6. Dhali et al. 2017: 78, plate XXIII, figs 399–403.

Type material. Female holotype from INDIA: Maharashtra: Pune (=Poona): Shivajinagar (= Shivaji Nagar) (18°31’53.19’’N, 73°50’40.42’’E), 565 m alt.; M.S. Malhotra leg.; 24 February 1975; repository NZC-ZSI (4671/18), examined. Male allotype with same data as holotype, except 4672/18, examined .

Diagnosis. Arctosa indica seem closely related to Arctosa kiangsiensis (Schenkel, 1963) as both share a median apophysis with narrow distal part and oval spermathecae with slender, twisted stalks. It can be distinguished from the latter by median apophysis with a small, retrolateral protrusion, which is absent in A. kiangsiensis , and a median septum with short anterior and broad posterior parts, while A. kiangsiensis has long anterior and narrow posterior parts (compare Fig. 6 B–E to Yin et al. 2012: fig. 398b–e).

Supplementary description. Male (allotype, Fig. 5B ). Fovea vertical, dark. Cheliceral promargin with two teeth, retromargin with three. Body length 7.34. Prosoma length 4.15, width 2.99. Opisthosoma length 3.19, width 2.13. Eye diameters: ALE 0.11. AME 0.14. PLE 0.19. PME 0.23. Eye interdistances: ALE–AME 0.04. AME–AME 0.06. PLE–PLE 0.51. PME–PLE 0.24. PME–PME 0.16. Chelicerae length 2.05. Clypeus height at ALEs 0.11, at AMEs 0.06. Measurements of pedipalp and legs. Pedipalp (right) 3.94 [1.66, 0.74, 0.63, 0.91], I (right) 9.65 [2.86, 1.51, 1.99, 2.13, 1.16], II -----, III 7.85 [2.24, 1.14, 1.19, 2.17, 1.11], IV 11.54 [3.21, 1.46, 2.28, 3.17, 1.42]. Pedipalp as in Fig. 6 A–C.

Female (holotype, Fig. 5A ). Same as male except the following: body length 8.13. Prosoma length 4.28, width 3.20. Opisthosoma length 3.85, width 2.77. Eye diameters: ALE 0.11. AME 0.12. PLE 0.20. PME 0.24. Eye interdistances: ALE–AME 0.06. AME–AME 0.12. PLE–PLE 0.67. PME–PLE 0.34. PME–PME 0.25. Chelicerae length 2.06. Clypeus height at ALEs 0.11, at AMEs 0.08. Measurements of palp and legs. Palp (right) 4.24 [1.47, 0.87, 0.83, 1.07], I (right) 10.59 [3.17, 1.81, 2.15, 2.10, 1.36], II----, III----, IV----. Genitalia as in Fig. 6 D–E.

Remarks. The NZC-ZSI collection has two glass tubes for this species. A first tube, labelled ‘holotype’ (4671/18), contains one female specimen in fairly good condition, with broken legs. The same tube has a small glass vial that contains the dissected genitalia. A second tube, labelled ‘allotype’ (4672/18), contains one male specimen in fairly good condition, with broken legs. The same tube has a small glass vial that contains the dissected left pedipalp. In contrast to Tikader & Malhotra (1980), who mentioned the collection locality of both male and female as ‘Shivajinagar’, the allotype label, which lacks collector name and date of collection, mentions the collection locality as ‘Gamatia in Birbhum district of West Bengal’.

Figures

FIGURE 5. Arctosa indica Tikader & Malhotra, 1980. A female holotype habitus, dorsal. B male allotype habitus, dorsal. C–D labels from type tubes. Scale bars: A–B, 2 mm.

FIGURE 6. Arctosa indica Tikader & Malhotra, 1980. A–C male allotype, left pedipalp: A ventral, B ventral, enlarged; C retrolateral, enlarged. D–E female holotype, genitalia: D epigynum, ventral, E vulva, dorsal. Scale bars: A, 0.5 mm; B–E, 0.2 mm.