Psechrus borneo Levi, 1982

Figs 9a–c, 87d, 90d

Psechrus borneo Levi 1982: 126, figs 56–57 (Description and illustration of ♀). [Holotype ♀ (SB 279) from INDONESIA: Borneo, Kalimantan Timur Province: Birang river (in the region of Berau), ca. N 12°11', E 117°28'; Dr. Erik Georg Mjöberg leg. 1920–1925; NRS; Paratype: 1 s.a. ♀ (SB 280), INDONESIA: Borneo, Kalimantan Timur Province: Mt. Tibang, 1300 m; Dr. E.G. Mjöberg leg. 1920–1925; NRS, all type material examined].

Revised diagnosis (see also diagnosis for mulu -group above). Females similar to P. mulu Levi, 1982 in diagnostic character states described for mulu -group (see above). Distinguished from the similar P. mulu by the lateral margins of median septum (MS) running steeper and by the copulatory openings (CO) more hidden, slit-like (Fig. 9a) and not as close together as in mulu . CD of vulva curved and running into receptaculum from anterior (Fig. 9b).

Description. Male: unknown.

Female:

Body and eye measurements. Carapace length 5.5, carapace width 3.8, anterior width of carapace 2.3, opisthosoma length 8.9, opisthosoma width 4.1. Eyes: AME 0.33, ALE 0.41, PME 0.38, PLE 0.38, AME–AME 0.18, AME–ALE 0.09, PME–PME 0.28, PME–PLE 0.31, AME–PME 0.43, ALE–PLE 0.38, clypeus height at AME 0.93, clypeus height at ALE 0.70.

Cheliceral furrow with three promarginal and four retromarginal teeth.

Measurements of palp and legs. Leg formula: 1423. Palp: 7.0 [2.3, 1.0, 1.3, 2.4]; Legs: I 48.3 [13.3, 2.3, 13.8, 12.7, 6.2], II 35.9 [10.3, 2.0, 9.7, 9.2, 4.7], III 24.9 [7.6, 1.6, 6.2, 6.3, 3.2], IV 37.9 [11.1, 1.9, 9.9, 9.7, 5.3].

Palpal claw with 15 teeth.

Spination. Palp: 131, 110, 1101, 1014; legs: femur I 666, II 656 III 556{655}, IV 555; patella I–IV 000; tibia I–II 3038, III 3134, IV 3136; metatarsus I–III 3035, IV 3034.

Copulatory organ (see also diagnosis and general description of mulu -group). MS posteriorly ca. 1.5x broader than anteriorly (Fig. 9a). No statements about epigynal muscle sigilla and slit sense organs possible, because parts of epigynal field and surroundings were unfortunately cut along with dissection (presumably for the study in Levi 1982). Spermathecal heads (SH) without ‘stalks’, but relatively large in comparison to receptacula (Fig. 9b, 90d).

Colouration. See description for mulu -group and Psechrus .

Remark. It is uncertain, if the paratype (s.a. ♀, SB 280, not illustrated), indeed belongs to P. borneo . It may just as well belong to a different species. There is no further adult material from its recording locality, which is about 230 km away from the type locality.

Distribution. Indonesia [Eastern Borneo] (Fig. 100).