Evarcha bakorensis, Rollard & Wesołowska, 2002

Rollard, Christine & Wesołowska, Wanda, 2002, Jumping spiders (Arachnida, Araneae, Salticidae) from the Nimba Mountains in Guinea, Zoosystema 24 (2), pp. 283-307 : 288-290

Evarcha bakorensis n. sp.

( Fig. 4 )

TYPE MATERIAL. — Holotype: road to Bakoré, Andropogon steppe, 500 m a.s.l., 8.X.1956, leg. M. Lamotte, 1.

ETYMOLOGY. — The species is named after its type locality.

DIAGNOSIS. — The species resembles Evarcha chubbi Lessert, 1925 , but differs from it in the shorter embolus and the shape of the tibial apophysis (cf. Fig. 4 B-D with figs 79 and 80 in Lessert 1925).

DESCRIPTION

Male. Measurements: carapace length 1.5, width 1.1, height 0.7. Abdomen length 1.4, width 1.0. Eye field length 0.7, anterior and posterior width 1.1. Small spider, its carapace convex. Eye field dark brown, small triangular yellowish patch between eyes of III row. Thorax light brown, darker on slopes. Small fawn scales surround anterior eyes, between these eyes few white hairs. Clypeus covered with fawnish-yellow hairs. Chelicerae light brown, promargin with two teeth, retromargin with single tooth. Labium and maxillae light brown with pale tips. Sternum yellowish-brown. Abdomen oval, brown with white anterior margin and pattern of whitish patches ( Fig. 4A ), venter yellowish. Long brown bristles at anterior margin of abdomen. Anterior spinnerets brown, posterior yellow. Legs I and II brown, only tarsi lighter. Femora of legs III and IV yellow with brown bases and tips, patellae and tibiae brown, metatarsi and tarsi yellow. Pedipalps yellowishbrown. Bulbus with big posterior lobe, embolus rather thin. Straight, wide and truncated single tibial apophysis ( Fig. 4 B-D).

Female unknown.

A

Figures

FIG. 4. — Evarcha bakorensis n. sp., holotype; A, abdominal pattern; B, palpal organ, ventral view; C, palpal organ, retrolateral view; D, palpal organ, dorsal view. Scale bars: A, 1 mm; B-D, 0.2 mm.