Oedignatha spadix, 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 (Oedignatha), Leiden, Netherlands: Brill Leiden; Boston; Köln, pp. 261-276 : 275-276

Oedignatha spadix sp. n.

( figs 371-374 , map 20)

Type loality.— Indonesia, N Bali.

Type material.— Holotypc ♂, Ambengan near Singaraja . 9- 31.i.1990, S. Djojosudharmo ; paratypes: 6 ♂, 19 ♀, same data .

Other material.— Sumbawa Island, Samokat, 2 ♂, 2 ♀, with 5 ♂. 6 ♀ O. scrobiculata , 480 m, secondary forest. 1-3.i.1990. S. Djojosudharmo ; C Sulawesi. Palu. Lore Lindu reserve, 2 ♀. leaf litter near river, 23.vii.1982, P.R. and C.L. Deeleman ; Taneah. 40 km S of Kendari . 1 ♀, leaf litter, 11.viii.1980. P.R. and C.L. Deeleman : Sampara. 40 km W of Kendari, 1 ♀, leaf litter, 12.viii.1980, P.R. and C.L. Deeleman .

Diagnosis.— A species with uniform dark dorsal scutum, related to 0. jocquei ; it is distinct from that and other related species listed in the diagnosis of 0. jocquei by the longer epigyne which is longer than wide, left and right dark elements separated by a pale elongate zone of uniform diameter; posteriorly there is a relatively large posterior window with crescent ridge; transverse ducts separate the spermathecae from the bursae. The main branch of the tibial apophysis of the male palp is wide, concave; the embolus is inserted proximally on the tegulum; a small narrow tegular apophysis is present.

Description.— MALE. holotype. Total length 5.50 mm. Carapace length 2.50 mm. width 1.75 mm, height 1.25 mm, head width 1.20 mm, eye width 1.00 mm; abdomen length 2.50 mm. width 1.50 mm. Leg lengths: leg I 8.50 mm (2.25-3.00-2.15-1.10), leg II 6.90 mm (1.90-2.25-1.75-1.00), leg III 5.70 mm (1.60-1.75-1.50-0.85), leg IV 8.30 mm (2.15-2.75- 2.25-1.15), palp 1.00-0.40-0.45-1.00 mm. All aspects as in scrobiculata , hump on clypeus somewhat smaller and more angular, tibiae of walking legs darker with lighter band apically. light spots on abdomen absent. Spine formula: all femora with a small proximal spine dorsally which is sometimes missing in leg II and III. femur I distally a prolateral spine; tibia I 8 pv. 7rv. tibia II 8 pv. 6rv. tibia III 1 v, 1-1pv or 1-0pv. tibia IV 1-1 pv. 0-1rl; metatarsus I 5 pv, 6rv, metatarsus II 4 pv, 4rv, metatarsus III and IV 1 pv, 1rv. Palpal tibial apophysis ( figs 371, 372 ) wide and concave. in the middle a small indention, proximally a pointed fingerlike projection; embolar base larger than in scrobiculata , embolus longer. arising mesally and describing a full circle; shape of conductor different.

FEMALE. Total length 5.50 mm. Carapace length 2.35 mm, width 1.60 mm, head width 1.25 mm, eye width 0.80 mm; abdomen length 2.50 mm, width 1.80 mm, epigyne 0.50 mm wide. Leg lengths: leg I 7.65 mm (2.05-2.75-1.85-1.00), leg II 6.05 mm (1.65-2.15- 1.45-0.80), leg III 5.20 mm (1.50-1.50-1.40-0.80), leg IV 7.40 mm (1.90-2.45-2.05-1.00), palp 0.90-0.35-0.50- 0.87 mm. Epigyne see diagnosis and fig. 373 , vulva fig. 374 .

Distribution. — Eastern Indonesia. Found at present on the Lesser Sunda Islands Bali and Sumbawa and in central and southeastern Sulawesi. On the Lesser Sunda Islands in mixed population with 0. scrobiculata .

Variability. — In the specimens from Sulawesi the colouration of the legs shows more contrast.

Etymology. — From spadix (Lat.) = chestnut brown.

Note. — This species is closely related or identical with Amaurobius andamanetsis Tikader , the insufficient description and illustrations of this species show the characteristic concave arch of the male palpal tibial apophysis. The figure of the bulb is much simplified and does not show any detail. the shape of the epigyne seems to be shorter and wider than in spadix .

Figures

Figs 371-374. Oedignatha spadix sp. n. 37 I. Male Bali, palp, ventral. 372. Retrolateral. 373. Female Bali, epigyne, ventral. 374. Vulva, in clove oil, ventral.