Plynnon zborowskii, Deeleman-Reinhold, Christa, 2001

Deeleman-Reinhold, Christa, 2001, Forest Spiders of South East Asia With a revision of the sac and ground spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanteriidae)., Forest Spiders of South East Asia With a revision of the sac and ground spiders- Family Liocranidae, Leiden, Netherlands: Brill Leiden; Boston; Köln, pp. 400-505 : 439-443

Plynnon zborowskii sp. n. ( figs 715-720 , map 37 )

Type locality.— Borneo, W Sabah, Kinabalu National Park.

Type material.— Holotype ♂, Kinabalu at Poring, 600 m, canopy fogging of Aporusa lagenocarpa tree no. 51, 19.ii. 1996, A. Floren; paratypes: 1 ♀, same data as holotype, tree 57 , 1 ♀ from the Head Quarters at 1550 m by sifting grass in garden, 4.v. 1991, C.L. Deeleman and M. Goodnight ; id., 1 subad., 21-27.vii.1980; 1 ♂ ( MHNG) 1500 m, Ligawu Trail , interception trap, 30.vi.1987, D. Burckhardt and I. Löbl.

Other material.— 1 subadult ♂, type locality, 21-27.vii. 1980, P.R. and C.L. Deeleman ; W Sabah, Tamparuli , 1 ♂, 600 m, rubber plantation, 30.vi. 1979, P.R. and C.L. Deeleman . E Sabah, Sepilok , 1 ♀, paratype, on ant trail, ix.1980, P. Zborowski; “Interior Residency”, road from Kimanis at 13 km from Keningau , 1 ♀ ( MHNG), secondary forest with banana plants, 1170 m, 14.iii. 1983, B. Hauser; C Borneo ( Kalimantan), Kaharian , 2°02'S, 113°40'E, 1 ♀, jvs, lowland peat swamp forest, leaf litter, 2-16. ix.1985, S. Djojosudharmo.

Diagnosis.— A pretty, vividly and contrastingly coloured, somewhat ant-like spider. Characterized by the wide clypeus and by vulval openings placed lateral to the spermathecae in a straight transverse line; the arrangement of the various parts of the vulva are clearly visible through the tegument.

Description.— Male (holotype). Total length 2.60 mm (Tamparuli 2.80 mm). Carapace length 1.25 mm, width 0.80 mm, height at coxae II 0.32 mm, head width 0.50 mm, eye group width 0.30 mm; abdomen 1.15 mm long, 0.65 mm wide. Leg lengths: leg I 2.70 mm (0.75-0.95-0.55-0.45), leg II 2.50 mm (0.70-0.85-0.50-0.45), leg III 2.25 mm (0.65-0.70- 0.50-0.40), leg IV 3.35 mm (0.70-1.15-0.85-0.65), palp 0.45-0.20- 0.20-0.60 mm. Carapace, mouthparts, sternum, coxa and femur I ( fig. 715 ) terra cotta, rest of legs paler, coxae II-IV creamy white with dark grey, in leg I tip of femur, both lateral faces of patella and most of tibia white, metatarsus I dark, other legs predominantly pale yellow with slightly darker femora, femur of leg IV with black spot basally on retrolateral side and retroventrally a black line running along leg IV from femur to base of metatarsus. Abdomen with middle brown shiny dorsal scutum, with two transverse pale bars, ventral side brown, posterior half of dorsum and flanks of abdomen sooty black. Both eye rows slightly recurved, ALE and AME juxtaposed. PME separated by 2 d PME, 1 d from PLE. Clypeus protruding, 2 d ALE. Leg spination: tibiae I with 2-2-2-2v, tibia II with 1-1-1-1pv and 1-1-1rv; metatarsi I and II with 1 pair of long strong spines ventrally. Abdomen pear-shaped, widest in second half; ventrally an epigastric and a postgenital scutum. Palp figs 718-719 , femur without distal boss; embolus S-shaped, ventral surface of tegulum with subapical bulge.

FEMALE. (Kinabalu 1550 m). Total length 3.75 mm (4.40 mm in the female from Sepilok, 4.00 mm in Poring canopy, 3.25 mm in Kaharian). Carapace length 1.60 mm, width 1.15 mm, height at coxae II 0.50 mm, head width 0.65 mm, eye group width 0.40 mm; abdomen 1.40 mm long, 1.10 mm wide, epigyne 0.45 mm wide. Leg lengths: leg I 4.60 mm (1.30-1.60-0.90-0.80), leg II 4.10 mm (1.15-1.40-0.90-0.65), leg III 3.80 mm (1.00- 1.20-0.90-0.70), leg IV 5.85 mm (1.65-1.90-1.50-0.80), palp 0.60-0.35- 0.35-0.70 mm. Similar to male in colour but carapace and abdomen dark brown, epigastric scutum divided into a central one and two lateral ones covering lungs. Leg spination differing from male in having 6 proventral and 6 retroventral spines on tibia I (5 retroventral in female from Poring), tibia II with 1-1-1-1pv or 1-1-1-1-1pv and 1-1-1-1-1rv spines. Palpal femur with 1d, patella with 1pl, tibia with 1d and 2pl, tarsus with Id and 1rl. Epigyne and vulva fig. 717 and 720 .

Variability.— The extension of the white markings on the abdomen is highly variable in the examined material, the dorsum ranges from almost entirely black with a thin transverse white line to a predominantly white colour with two transverse dark bands ( figs 715­ 716 ). The dorsal scutum is often thin or absent.

Distribution and habitat.— Borneo, from leaf litter to the canopy. In lowland overlapping with P. longitarse .

Etymology. — Dedicated to my friend, entomologist and publicist Paul Zborowski, in admiration for the overwhelming diversity of the National Park Kinabalu, the place where we first met.

Figures

Map 37: ■ Plynnon zborowskii ▲ P longitarse ◙ P. jaegeri Ө Unidentified specim en 1 - 6

Figs 715 - 720. Plynnon zborowskii n. gen. sp. n. 715. Male holotype, habitus with left leg I, dorsal. 716. Fem ale Kinabalu, habitus. 717. Female Poring, habitus, ventral. 718. M ale palp, ventral. 719. Retrolateral. 720. Vulva, in clove oil, ventral.