Otacilia ambon, 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 : 422-424

publication ID

https://doi.org/ 10.5281/zenodo.814704



persistent identifier


treatment provided by


scientific name

Otacilia ambon

sp. nov.

Otacilia ambon View in CoL sp. n. ( figs 681-684 View Figs 681 - 684 , map 34 View Map 34 )

Type locality.— Indonesia, Moluccas, Ambon .

Type material.— Holotype ♂, from the type locality, secondary bush on ridge near airport, leaf litter, 12.i. 1995, C.L. Deeleman; paratypes: 2 ♂, 2 ♀, same data ; Hila , secondary forest, leaf litter, 1 ♀ 29-31.i. 1995, C.L. Deeleman.

Other material. — Moluccas, Banda Island Lonthoir , 1 subadult, former nutmeg plantation, Namulu, in leaf litter, 27.viii.1992, C.L. Deeleman.

Diagnosis.— Easily distinguished by the small size, in combination with the colouring of carapace and legs and the large white spot dorsally on the rear part of the abdomen, further by the shape of the large tibial apophysis in the male palp, and the epigyne.

Description — MALE. Total length 1.70 mm. Carapace length 0.90 mm, width 0.75 mm, head width 0.30 mm, abdomen 0.85 mm long, 0.60 mm wide. Leg lengths: leg I 3.30 mm (0.90-1.15-0.80-0.45), leg II lost, leg III 2.45 mm (0.65-0.65-0.65-0.50), leg IV 3.50 mm (0.90-1.00-1.00-0.60), palp 0.35-0.20- 0.17-0.40 mm. Carapace brown with dark grey peripheral markings, mouthparts and sternum pale brown; femora dark grey, rest of anterior legs middle brown, posterior legs pale yellow; abdomen with brown and shiny dorsal scutum, sides dark grey, a white patch dorsally in front of spinnerets and no black ring (cf. sinifera ), ventral surface and area around spinnerets creamy, with ventral epigastric scutum. AER slightly recurved in dorsal view, eyes of equal size and almost juxtaposed, PER more strongly recurv, middle eyes oval, without black surround, shortest diameter less than half that of PLE, separated by 2- 3x their shortest diameter, juxtaposed to laterals; clypeus almost equal to 1 eye diameter. Spination: all femora without any dorsal spine, femur I with 1-1-1pd spines, tibia I with 6 pair of ventral spines, tibia II with 5 pairs, metatarsus I with 4 pairs, metatarsus II with 1-1-1 pv and 1-1-1 rv. Abdomen with entire dorsal scutum and epigastric scutum, ventrally without ornamentation of long setae. Palp figs 681-682 View Figs 681 - 684 , femur ventrally with swelling, topped with horseshoe mark; tibial apophysis not reaching midpoint of cymbium, sperm duct extended over more then half the tegulum length, tegular apophysis curved, embolus claw-like, with very wide base.

FEMALE. Total length 2.25 mm. Carapace length 1.05 mm, width 0.90 mm, head width 0.45 mm; abdomen 1.25 mm long, 0.65 mm wide, epigyne 0.35 mm wide. Leg lengths: leg I 3.65 mm (0.90-1.35-0.95-0.45), leg II 2.90 mm (0.75-1.00-0.70-0.45), leg 2.70 III mm (0.70-0.75-0.75-0.50), leg IV 4.00 mm (1.00-1.20-1.15-0.65), palp 0.40-0.20-0.25- 0.45 mm. Carapace, eyes, mouthparts and legs more yellowish than in male. Abdomen with small dorsal scutum only; venter and dorsum predominantly dark grey with creamy white patch in front of spinnerets. Epigyne as fig. 683 View Figs 681 - 684 , vulva fig. 684 View Figs 681 - 684 .

Distribution.— Only known from Ambon and probably Banda islands, 300 km east of Ambon.

Etymology.— After the island which has been designated as type locality.













GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF