Plynnon longitarse, 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 : 443-444

publication ID 10.5281/zenodo.814704


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scientific name

Plynnon longitarse

sp. nov.

Plynnon longitarse View in CoL sp. n. ( figs 721-729 View Figs 721 - 729 , map 37 View Map 37 )

Type locality. — Indonesia, C Kalimantan, 2°02/ S, 11°35'E, primary forest.

Type material. — Holotype ♂, “ Tumbang Tahai”, primary peat bog forest , 2-13.ix. 1985, S. Djojosudharmo; in the same area occurs P. zborowskii', paratypes: 1 ♀, “ Kaharian ”, 2°02'S 11 °40'E, same data. GoogleMaps

Other material.— None.

Diagnosis.— Characterized by the male palp with femoral boss covered with black teeth and by the different spatial arrangement of parts of vulva visible through the tegument. Further distinguishable from zborowskii by the less contrastingly coloured legs with entirely dark femora II-IV.

Description.— Male. Total length 2.65 mm. Carapace length 1.25 mm, width 1.00 mm, height at coxae II 0.45 mm, head width 0.55 mm, eye group width 0.40 mm; abdomen 1.25 mm long, 0.90 mm wide. Leg lengths: leg I 3.00 mm (0.85-1.10-0.55-0.50), leg II 2.70 mm (0.80-0.95-0.50-0.45), leg III 2.50 mm (0.70-0.80-0.55-0.45), leg IV 3.90 mm (1.10-1.25-0.95-0.60), palp 0.45-0.22- 0.22-0.50 mm. Carapace, mouthparts and sternum dark chestnut brown, legs paler, anterior coxae pale brown, posterior coxae yellow, all femora dark. Abdomen dark and shiny dorsally, ventrally a little paler, without pattern. Both eye rows slightly recurved, in both rows lateral eyes larger than median eyes. Clypeus protruding, a little larger than d ALE. Underside of cephalothorax fig. 723 View Figs 721 - 729 . Leg spination: tibiae I with 1-1-1-1- 1 pv, 1-1-1-1rv, tibia II with 1-1-1-1pv and 1-1-1rv; metatarsi I and II with 1 pair of long strong spines ventrally. Abdomen entirely covered with scutum, ventrally an epigastric scutum only; spinnerets fig. 728 View Figs 721 - 729 . Palp figs 724-725 View Figs 721 - 729 , femur with conspicuous retrolateral boss, covered with black teeth of various size; embolus relatively very short.

FEMALE ( figs 721-722 View Figs 721 - 729 ). Total length 2.30 mm. Carapace length 1.30 mm, width 1.00 mm, height 0.35 mm, head width 0.55 mm, eye group width 0.40 mm; abdomen 1.35 mm long, 0.87 mm wide, epigyne 0.35 mm wide. Leg lengths: leg I 2.80 mm (0.85-0.95-0.50- 0.50), leg II 2.95 mm (0.90-1.00-0.60-0.45), leg III 2.60 mm (0.75-0.80-0.60-0.45), leg IV 4.15 mm (1.20-1.35-1.00-0.60), palp 0.40-0.20-0.25- 0.45 mm. Carapace, eyes, mouthparts and legs as in male. Abdomen dorsally with a transverse white band with white setae. Spinnerets figs 727, 729 View Figs 721 - 729 . Epigyne and vulva fig. 726 View Figs 721 - 729 .

Distribution.— Only known from type locality, the boggy lowland forests of Central Kalimantan, where it lives together with P. zborowskii . When writing this, (1998), the peat swamp forests of Kaharian and Tumbang Tahai, only known home for this rare species, have been converted to oil palm plantations.

Etymology.— longitarse, Latin , refers to the tarsi I which are almost as long as metatarsi I.













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