Coelotes thailandensis Dankittipakul & Wang, 2003,

Dankittipakul, Pakawin, Chami-Kranon, Thanaphum & Wang, Xin-Ping, 2005, Amaurobiidae) from Thailand, Zootaxa 970, pp. 1-11: 7-8

publication ID

http://doi.org/ 10.5281/zenodo.171296

DOI

http://doi.org/10.5281/zenodo.3504615

persistent identifier

http://treatment.plazi.org/id/632487F6-282C-EC7F-DF37-1F7F251DFB89

treatment provided by

Plazi

scientific name

Coelotes thailandensis Dankittipakul & Wang, 2003
status

 

Coelotes thailandensis Dankittipakul & Wang, 2003 

Figures 9–12View 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. 12View FIGURES 9 – 12) resembles that of the holotype of C. thailandensis  ( Fig. 11View FIGURES 9 – 12) 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. 9View FIGURES 9 – 12) and by a strongly sclerotized internal genital structure with thickened ducts ( Fig. 10View FIGURES 9 – 12).

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 9–10View FIGURES 9 – 12): 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.

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Amaurobiidae

Genus

Coelotes