Stenaelurillus sudanicus, Wesołowska, 2014

Wesołowska, Wanda, 2014, Further notes on the genus Stenaelurillus Simon, 1885 (Araneae, Salticidae) in Africa with descriptions of eight new species, Zoosystema 36 (3), pp. 595-622 : 616-618

Stenaelurillus sudanicus n. sp.

( Figs 12 ; 16D )

TYPE MATERIAL. — Holotype. Sudan, Northern province , Kerma, 19°36’N, 30°24’E, in house, I.1989, leg. L. Chaix, 1 ♀ ( MHN).

DIAGNOSIS. — This species has a distinctive epigyne, with very large pocket and copulatory openings situated at posterior edge of epigyne. Tibia of female palp darker than other segments, contrasting.

ETYMOLOGY. — The species is named after its terra typica ( Sudan).

DISTRIBUTION. — Known only from the type locality.

DESCRIPTION

Measurements

Cephalothorax: length2.2, width 1.7, height 0.9.Abdomen: length 2.5, width 1.9. Eye field: length 0.7, anterior and posterior width 1.2.

Fig. 14. — Stenaelurillus zambiensis n. sp., male (holotype) and female (paratype): A, palpal organ, ventral view; B, palpal organ, ventrolateral view; C, palpal organ,lateral view; D, E, palpal tibia; F, epigyne; G, internal structure of epigyne. Scale bars:A-E, 0.3 mm; F, G, 0.1 mm.

Male

Unknown.

Female

General appearance as in Fig. 16D . Carapace brown with darker eye field, two pairs of wide white streaks, first along lateral margins and second starting from anterior lateral eyes and extending to posterior edge of carapace. Thoracic part clothed in brown hairs, short rod bristles on anterior part of eye field.Anterior eyes surrounded by small fawn scales from above and white from below.Chelicerae light brown, unidentate, with very small retrolateral tooth.Labium and endites orange, sternum dark yellow.Clypeus low, brownish. Abdomen with striped pattern typical for Phlegra sp. , three wide whitish bands on black background ( Fig. 16D ), dorsum covered with dense short hairs, their colouration according with blackground.Venter light, sides with dark marks.Ventral surface of body covered with dense light hairs. Spinnerets long, yellow with black tips. Legs orange, their hairs light, dense. Spines numerous, light. Palps yellow, but last segment brown, contrasting. Epigyne with single deep pocket, copulatory openings placed laterally, at posterior epigynal edge ( Fig.12B ).Internal structure as Fig.12C ,seminal ducts wide, spermathecae spherical.

Stenaelurillus uniguttatus Lessert, 1925 ( Fig. 13 )

Stenaelurillus uniguttatus Lessert, 1925: 478 , figs 64, 65.

MATERIAL EXAMINED. — Holotype. Kenya, Kibonoto , 3°11’S, 37°6’E, zone res. cultures, leg. Sjöstedt, 1 ♂ ( NR); one palp from the same specimen ( MHN).

DIAGNOSIS. — The male is easily distinguished from other members of the genus by abdominal pattern with transverse brilliant zone, except S. darwini , from which differs in palp structure; long bristles on tibia stretch in S. darwini to half of cymbium length, but they hang down in S. uniguttatus .

DISTRIBUTION. — Known only from Kilimanjaro massif.

REDESCRIPTION

Measurements

Cephalothorax:length 2.5, width 1.9, height1.0.Abdomen: length 2.6, width 1.7. Eye field: length 1.0, anterior width 1.6, posterior width 1.4.

Male

Shape of body typical for the members of the genus. Specimen slightly bleached, carapace brownish with traces of lighter streaks on thoracic part, brown bristles on eye field. Mouth part light brown. Abdomen with characteristic pattern; generally velutinous black, but with broad transverse reflecting fillet in mid length of abdomen, single rounded light patch in anterior half. Venter light. Legs yellowish, their hairs and spines brown. Pedipalps as in Fig. 13 A-C; embolus with accompanying hooked structure and long, thin, pointed, membranous terminal apophysis ( Fig. 13D ). Retrolateral tibial apophysis small; retrolateral side of tibia ornamented with long, black, feather-shaped hairs; tuft of same hairs on tip of dorsal apophysis towards tibial base ( Fig. 13B, C ). Femur of palp with small bump ( Fig. 13E ).

Female

Unknown.

Figures

FIG. 12. — Stenaelurillus sudanicus n. sp., female, holotype: A, tarsus of first leg; B, epigyne; C, internal structure of epigyne. Scale bars: A, 0.2 mm; B, C, 0.1 mm.

FIG. 16. — Stenaelurillus pecten n. sp. and S. sudanicus n. sp.: A, S. pecten n. sp., male, paratype, dorsal view; B, S. pecten n. sp., male, paratype, lateral view; C, S. pecten n. sp., female, paratype, dorsolateral view; D, S. sudanicus n. sp., female, holotype, lateral view. Scale bars: 1.0 mm.

FIG. 13. — Stenaelurillus uniguttatus n. sp., male, holotype: A, palpal organ,ventral view; B, palpal organ,lateral view;C, palpal organ, dorsal view; D, embolic division; E, palpal femur. Scale bars: A-C, E, 0.3 mm; D, 0.1 mm.