Toticoryx exilis, 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 : 305

Toticoryx exilis n. sp.

( Fig. 17 )

TYPE MATERIAL.— Holotype: Pierré Richaud, on ground in low vegetation, 27.XI.1961, leg. P. Aguesse & M. Lamotte,.

ETYMOLOGY. — The specific name is Latin for “slen- der”, and refers to the body shape of this species.

DIAGNOSIS. — This species is distinguished by the presence of an additional spherical chamber next to the copulatory opening.

DESCRIPTION

Male unknown.

Female. Measurements: carapace length 1.3, width 0.9, height 0.3. Abdomen length 1.8, width 0.9. Eye field length 0.6, anterior width 0.7, posterior width 0.8. Leg spination: I Fm d 1- 1-1, Tb v 2-2-2, Mt v 2-2; II Fm d 1-1-1, Tb v 2- 2, Mt v 2-2; III and IV Fm d 1-1-1. Very small and slender spider. Carapace flat, elongated, slightly wider posteriorly. Its coloration brown, only near eyes black. Sparse prostrate hairs on carapace, some longer bristles at anterior row of eyes. Chelicerae with two promarginal teeth and single retromarginal tooth. Labium, maxillae and sternum orange-brownish. Abdomen very elongated, russet-greyish. Venter yellowish with traces of longitudinal dark stripe medially. Few long bristles at anterior margin of abdomen. Spinnerets grey. Legs yellow. First legs slightly thicker than remaining, prolateral surfaces of their segments brownish. Leg hairs scarce, spines not numerous, on leg III and IV present only on femora. Epigyne with wide depression posteriorly ( Fig. 17A ). Internal structures rather weakly sclerotized. Initially very short seminal duct expands to spherical chamber, which is joined by long tube with spherical receptacle ( Fig. 17B, C ).

Figures

FIG. 17. — Toticoryx exilis n. gen., n. sp., holotype; A, epigyne; B, internal structure of epigyne, ventral view; C, internal structure of epigyne, dorsal view. Scale bar: 0.2 mm.