Apterogyna flavicapillata Soliman & Gadallah, sp. nov.

(Figs 1−7)

Material examined. Holotype ♀: Egypt, Saint Catherine, S. Sinai [28°34'01"N, 33°57'31"E], 12−13.xi.2014 (leg. Ahmed M. Al-Shahat) Pitfall trap [CUE]. Paratype 1 ♀: Egypt, Saint Catherine, S. Sinai [28°34'01"N, 33°57'31"E], 28.v.2014 (leg. Ahmed M. Al-Shahat) [CUE].

Description. FEMALE (holotype). Body length 10 mm. Colour. Red, except metasomal segments 2−6 black; mid and hind tibial spurs waxy white; eye black. Pubescence. Face (upper half) clothed with recumbent golden setae (Fig. 2), lower half and scape of antenna clothed with white recumbent setae; clypeus, occiput and basal third of mandible with long erect white setae, denser on clypeus; mesosomal dorsum clothed with erect golden setae (Fig. 5); mesopleuron, metasoma and legs clothed with long erect whitish setae; T1, T2 with moderately-developed tuft of white setae apicomesally (Fig. 6); metasomal segments 3−5 with apical fringe of such setae, more pronounced on T3.

Head. In dorsal view as broad as pronotum, gently convergent behind eyes; subrounded in frontal view, its width 1.3 × head height; vertex convex when seen from frontal view, densely subcontiguously punctate, gently sloping posteriorly; face densely punctate; eye small, subspherical, slightly prominent, with middle-transversal axis located slightly above midline between free margin of clypeus and vertex (Fig. 2); malar space 0.8 × as long as longitudinal eye diameter (LED); distance between antennal tubercles 0.5 × tubercle length; clypeus strongly convex; gena without tubercle at the level of lower ocular margin; mandible slender, with weak subapical tooth (Fig. 3). Scape gently convex; F1 scarcely longer than F2, F2 and F3 equal in length. Palpal segments slender.

Mesosoma . Dorsally foveate-reticulate, foveae larger on dorsal face of propodeum than elsewhere (Fig. 4); pronotum with anterior face gently declivous, humeral angle gently rounded and posterior margin slightly concave (Fig. 4), longitudinally ridged laterally; propodeal posterior face gently declivous and obliquely ridged. Mesopleuron longitudinally ridged anteriorly and coarsely punctate posteriorly (Fig. 5); metapleuron coarsely ridged (Fig. 5); mesosternum polished and impunctate.

Metasoma. T1 widened posteriorly (pear-shaped), as long as its maximal width, superficially foveate (Fig. 6); apicomesal tuft of T1 0.8 × as wide as that on T2 (Fig. 6); T2 0.6 × as long as wide, bell-shaped; T2, T3 closely ellipsoid punctate (Fig. 6); T6 triangular, with continuous (not interrupted) longitudinal ridges, bordered laterally with sharp teeth that progressively reduce in size distally (Fig. 7). S1 smooth on its posterior broad part, with superficial sparse punctures anteriorly; S2, S3 puncticulate, punctures large and contiguous laterally, leaving transverse smooth area apically; S4, S5 smooth; S1−S5 with a row of fine punctures along their apical margins (setal insertion); S6 smooth except for few punctures apicolaterally.

MALE unknown.

Distribution. Egypt: South Sinai.

Remarks. This species resembles Apterogyna olivieri except for the following: body with scattered setae (dense in A. olivieri especially on head); face (upper part) and mesosomal dorsum with scattered erect golden setae (with dense recumbent whitish setae intermixed with erect ones in A. olivieri (Fig. 18)); setal tufts on T1 and T2 moderately-developed (well-developed in A. olivieri (Fig. 17)). It also resembles A. mateui Giner Marí, 1945 (distributed in Algeria, Mali, Morocco, Mauritania and Western Sahara) but differs in the following: metasomal T2 and T3 with ellipsoid punctures, without ridges in between (Fig. 6) (with oblong punctures and few ridges in between in A. mateui); head especially upper face and mesosomal dorsum clothed with golden setae (Fig. 2) (whitish in A. mateui).

Etymology. The name flavicapillata (Latin, adjective) refers to the golden setae covering the head and mesosoma .