Alfenus calamistratus SIMON, 1902

Szűts, T. & Scharff, N., 2005, Redescriptions Of Little Known Jumping Spider Genera (Araneae: Salticidae) From West Africa, Acta Zoologica Academiae Scientiarum Hungaricae 51 (4), pp. 357-378 : 359-361

Alfenus calamistratus SIMON, 1902

( Figs 1A, C , 2 A-F, 3A-D)

Alfenus calamistratus SIMON, 1902 a: 411 . – SIMON 1903 a: 739.

Diagnosis – Tibial apophysis of the palp short and robust ( Fig. 3D ). The tegulum is also characteristic, with a prolateral outgrowth ( Fig. 2D, F ).

Description – Male: Carapace brown, with many white, brownish-orange hairs ( Figs 2 A-B). Ocular area bordered by brown hairs and with two large ‘horns’ consisting of orange and orange-brown setae ( Figs 3 A-B). ‘Horns’ situated between PME, their inner side with white basal hairs. In dorsal view, ocular area with a white triangle, lateral sides of carapace covered with white hairs. Eyes with black rings, covered with differently coloured hairs. AME surrounded by orange and white, PME’s and PLE’s surrounded by brown hairs ( Figs 2 A-B, 3A-B). Clypeus with brown hairs and a few white ones at the center. Chelicerae robust, dark brown, with many hairs. Gnathocoxae, labium and sternum brown. Leg segments brownish-yellow. Femora with dark spots on yellowish background. Leg I–II with blackish tibia, metatarsi black distally, other leg segments light brown. Leg III–IV paler with dark spots. Abdomen oval, hairy with an unclear pattern on a brownish background.

Measurements – Male: total length 9.25. Carapace 4.25 long, 3.25 wide, 1.21 high at PLE. AEW 2.75, PEW 2.25, OCA 1.35 long. Abdomen 4.25 long 2.55 wide.

Palp ( Figs 3 C-D) – All palpal segments covered with thick, white, retrolateral brushes of hairs. Tibia with a strong short black retrolateral apophysis. Tegulum strongly sclerotized, sperm ducts not visible. Embolus moderately long, thin, and whip-like.

Female: unknown.

Distribution – Democratic Republic of the Congo.

Material examined – Type material: Alfenus calamistratus SIMON, 1902 , holotype (examined), male from Congo. Handwritten labels in tube: “22084 Alfenus calamistratus E. S., Congo (Blaise)”; “22084” ( MNHN 22084 ) .

Other material: 1 male from Democratic Republic of the Congo, Méya , HSZE Nr 39: 29.X. 1963, leg. J. Balogh & A. Zicsi, “singled in apartment, on walls, around house, in plam [sic!]-roof” [probably palm-roof] ( HNHM SALT395 ) .

Figures

Fig. 1. Habitus of Alfenus. A= Alfenus calamistratus; B= A. chrysophaeus; C= A. calamistratus. Scale = 1.0 mm

Fig. 2. Automontage images of Alfenus. Alfenus calamistratus A = male holotype, fronto-lateral view, B = specimen from Congo, fronto-lateral view, C = male holotype, dorsal view, D = palp of the holotype, ventral view, E = specimen from Congo, dorsal view, F = same, palp dorsal view; A.

Fig. 3. Alfenus species. Alfenus calamistratus A= carapace, frontal view, B = same, fronto-lateral view, C = palp, ventral view, D = same, retrolateral view.A.chrysophaeus E = palp, ventral view, F = same, retrolateral view, G = carapace, fronto-lateral view. Scales 0.2 mm for palps, 1.0 mm for cara-