Jumping spiders (Arachnida, Araneae, Salticidae) from the Nimba Mountains in Guinea Author Rollard, Christine Muséum national d’Histoire naturelle, Laboratoire de Zoologie (Arthropodes), 61 rue Buffon, F- 75231 Paris cedex 05 (France) chroll @ mnhn. fr chroll@mnhn.fr Author Wesołowska, Wanda Zoological Institute, Wrocław University, Sienkiewicza 21, PL- 50335 Wrocław (Poland) tomwes @ biol. uni. wroc. pl. text Zoosystema 2002 24 2 283 307 journal article 10.5281/zenodo.5394616 1638-9387 5394616 Evarcha certa n. sp. ( Fig. 5 ) TYPE MATERIAL . — Holotype : Mountain Tô , meadow, 1200 m a.s.l. , 10.XII.1951 , leg. M. Lamotte & R . Roy ,. ETYMOLOGY. — The specific name is Latin for “unquestionable”, and accentuates the generic membership of this species. DIAGNOSIS. — The species is characterised by the structure of the epigyne; seminal ducts longer than in other members of the genus and receptacles composed of only few chambers. DESCRIPTION Male unknown. Female. Measurements: carapace length 2.3, width 1.8, height 0.8. Abdomen length 2.3, width 1.8. Eye field length 1.0, anterior and posterior width 1.6. General appearance as in Fig. 5A . Carapace rather high, with large eye field. Coloration of carapace light brown, ocular area darker, surroundings of eyes black. Few long bristles near eyes, very small yellowish scales surround anterior eyes. Clypeus low, light. Labium light brown with whitish tip, maxillae and sternum orange. Chelicerae light brown, single tooth on retromargin and two teeth on promargin. Abdomen fawnish-yellow with paler pattern ( Fig. 5A ), venter yellow, only few dark small dots on it. Spinnerets yellowish. Legs yellowish-orange clothed in light hairs. Spines brown. Epigyne oval, rather heavy sclerotized, with copulatory openings placed posteriorly ( Fig. 5B ). Internal structure shown in Fig. 5C .