Coelotes thailandensis Dankittipakul & Wang, 2003

Figures 9–12

Material examined. HOLOTYPE: ɗ (MHNG), northern THAILAND, Chiang Rai Province, Wiang Pa Phao District, Khun Jae National Park, Doi Mae Toh, Mae Toh Waterfall, leg. S. Sonthichai & P. Dankittipakul.

New material: 1 Ψ, Chiang Mai Province, Chom Thong District, Doi Inthanon National Park, Doi Inthanon, evergreen hill forest, 1630 m – 1680 m, 21.XII.2004, leg. T. Chami­Kranon & S. Sonthichai.

Remarks. The male holotype of C. thailandensis was described from an evergreen forest in Chiang Rai Province but the corresponding female was then not known. Later, Ramirez & Grismado collected males and females of Coelotes on Doi Inthanon, approximately 100 km away from the type locality of C. thailandensis. The palp of one of the males examined by Ramirez & Grismado (Fig. 12) resembles that of the holotype of C. thailandensis (Fig. 11) except for its distinctively shorter patellar apophysis. We consider this difference as intraspecific variation. Recently we collected a female specimen in the same area and believe that it also belongs to C. thailandensis. It is described in the following and can be recognized by an elongate epigynal atrium (Fig. 9) and by a strongly sclerotized internal genital structure with thickened ducts (Fig. 10).

Description. Ψ Total length 10.63. Carapace 5.31 long, 3.84 wide.

Eye sizes and interdistances: AME 0.18, ALE 0.24, PME 0.21, PLE 0.22; AME–AME 0.16, AME–ALE 0.17, PME–PME 0.10, PME–PLE 0.22, ALE–PLE 0.10; MOQ 0.65 long, front width 0.50, back width 0.56. Cheliceral groove with 3 promarginal and 4 retromarginal teeth.

Leg formula 4123 (23.56, 22.50, 19.75, 17.79). Leg measurements: femora: I 5.34, II 4.96, III 4.55, IV 5.80; patellae: I 1.38, II 1.10, III 0.99, IV 1.41; tibiae: I 6.90, II 5.81, III 5.15, IV 7.11; metatarsi: I 5.68, II 5.03, III 4.85, IV 6.33; tarsi: I 3.20, II 2.85, III 2.25, IV 2.91.

Epigyne (Figs 9–10): posterior margin slightly concave; atrium longitudinally elongate; epigynal teeth small, situated laterally, relatively far away from each other; internal structure strongly sclerotized; copulatory ducts indistinct (the anteriorly extended ends of the spermathecae might be the copulatory ducts); spermathecae short and thick; fertilization ducts of normal shape.

Natural history. Coelotes thailandensis inhabits evergreen hill forests between 1400 m and 1680 m. The male holotype was collected from an irregular sheet­web in a rotten log. The female was collected from a PVC tube (3 cm diameter) on the forest floor.

Distribution. Known from the provinces of Chiang Mai and Chiang Rai, northern Thailand.