Langelurillus nigritus ( Berland & Millot, 1941 ) 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 : 298-301

publication ID	https://doi.org/ 10.5281/zenodo.5394616
persistent identifier	https://treatment.plazi.org/id/0390E567-FFCB-890B-FCEB-FC549E11FF10
treatment provided by	Marcus
scientific name	Langelurillus nigritus ( Berland & Millot, 1941 )
status	comb. nov.

Treatment

Langelurillus nigritus ( Berland & Millot, 1941) View in CoL n. comb.

( Figs 12 View FIG ; 13 View FIG )

Habrocestum nigritum Berland & Millot, 1941: 303 .

Habrocestum diversipes – Berland & Millot 1941: 301, n. syn.

MATERIAL EXAMINED. — Mountain Tô, 1620 m a.s.l., on ground, 10.III.1991, leg. C. Rollard, 2, 3. — Mountain Leclerc, 900-1450 m a.s.l., on ground, in low vegetation, 23-24.III.1991, leg. C. Rollard, 2, 2. — Grand Rocher, 1550 m a.s.l., on ground, 13.III.1991, leg. C. Rollard, 1. — Road from Grand Rocher to Mountain Richard Mollard, near peak of Grand Rocher, 1470 m a.s.l., in brushwood, 20.III.1991, leg. C. Rollard, 2. — Pierré Richaud, 1200-1350 m a.s.l., on ground in low vegetation, 26.III.1991, leg. C. Rollard, 1. — Route to Pierré Richaud, 850 m a.s.l., savanna near woodland, 20.X.1956, leg. M. Lamotte, 1. — Mountain Richard Mollard, 1600 m a.s.l., 9.XI.1951, leg. M. Lamotte & R. Roy, 1. — Ziéla, 500 m a.s.l., Andropogon steppe, 13.X.1956, leg. M. Lamotte, 1. COMPARATIVE MATERIAL. — Guinea. Dalaba VIII. 1937, leg. L. Berland, 1 (paratype of Habrocestum nigritum ) ( MNHN). — Ivory Coast. Man, IX.1937, leg. J. Millot, 1 (holotype of Habrocestum diversipes ) ( MNHN).

DISTRIBUTION. — Species distributed in western Africa ( Ivory Coast and Guinea).

DESCRIPTION

Male. Measurements: carapace length 1.7-2.3, width 1.3-1.8, height 0.8-0.9. Abdomen length 1.4-2.0, width 1.0-1.7. Eye field length 0.7-1.0, anterior width 1.2-1.6, posterior width 1.1-1.5. Cephalothorax longer and wider than abdomen. Carapace convex, eye field short, fovea clearly visible. Coloration of carapace dark brown, ocular area black. Brown hairs cover carapace, dense long brown bristles near eyes, short thick bristles on anterior part of eye field. Anterior eyes surrounded by small fawn scales. In some specimens short light hairs form narrow white line running along anterior and lateral edges of eye field. Chelicerae with diminutive tooth and long bristles on promargin, retromarginal edge toothless ( Fig. 12A View FIG ). Clypeus low, dark brown. Labium, maxillae and sternum brown. Abdomen dark brown or greyish-brown, ventrally light brown or yellowish. Short brownish hairs on abdomen, longer and denser at its anterior margin. Spinnerets yellow. First legs thickest, their segments short. Coloration of legs brownish, basal parts of femora lighter. Leg hairs brown, spines numerous. Pedipalps brown. Tegulum very convex ( Fig. 12 View FIG D-G), embolus coiled on tip of bulbus, only its end visible ( Fig. 12B, C View FIG ), two flat tibial apophyses ( Fig. 12 View FIG E-H).

Female. Measurements: carapace length 2.2-2.5, width 1.8-1.9, height 1.0-1.2. Abdomen length 2.4-2.9, width 2.1-2.7. Eye field length 0.9-1.0, anterior width 1.4-1.6, posterior width 1.3-1.5. Resembles male, but abdomen bigger. Clypeus higher than in male. Chelicerae as in Fig. 13A View FIG . Abdomen lighter. Epigyne oval, copulatory openings placed laterally ( Fig. 13 View FIG B-D). Seminal ducts spirally coiled, receptacles composed of several chambers ( Fig. 13E View FIG ).

REMARKS

Only males of H. nigritum and a single female of H. diversipes have previously been described.

Their joint collection in the Nimba Mountains allows us to synonymise these species.