Apterogyna oshaibahi Soliman & Gadallah

Soliman, Ahmed M., Gadallah, Neveen S., Al-Shahat, Ahmed M. & Pagliano, G., 2015, The genus Apterogyna Latreille, 1809 in Egypt, with three new species (Hymenoptera: Bradynobaenidae: Apterogyninae), Zootaxa 3905 (2), pp. 209-220 : 215-218

Apterogyna oshaibahi Soliman & Gadallah , sp. nov.

( Figs 23−27 )

Material examined. Holotype ♀: Egypt, Wadi Digla, Cairo [29°57'30''N, 31°20'06''E], 20.xi.2014 (leg. Ahmed M. Soliman) [ CUE]. Paratype 1 ♀: Egypt, Wadi Digla, Cairo [29°57'30''N, 31°20'06''E], 5.xi.2010 (leg. Ahmed M. Soliman) [ CUE].

Description. FEMALE (holotype). Body length 7 mm. Colour. Red, except flagellum of antenna light brown; coxae and T6 reddish brown, the latter with darker longitudinal ridges; prosternum, mesepisternum, T1 laterally, T2−T5 and metasomal sterna black; mid and hind tibial spurs waxy white; eye black. Pubescence. Face, vertex and scape of antenna clothed with recumbent white setae ( Fig. 24 ); clypeus, occiput and basal third of mandible with erect white setae; mesosoma , legs and metasoma clothed with long erect and fine whitish setae, denser on metasomal terga than elsewhere. T1, T2 with moderately-developed tuft of white setae apicomesally ( Fig. 26 ); metasomal segments 3−5 with apical fringe of such setae, well-developed on T3.

Head. In dorsal view 1.2 × as broad as pronotum, abruptly convergent behind eyes; in frontal view distinctly transverse, its width 1.6 × head height; vertex flattened when seen from frontal view, impunctate, strongly sloping posteriorly; face superficially sparsely and finely punctate (nearly smooth and polished); eye small, subspherical, distinctly prominent, with middle-transversal axis located above midline between free margin of clypeus and vertex; malar space as long as LED; distance between antennal tubercles as long as tubercle length; clypeus gently convex; gena with weakly developed tubercle at the level of lower ocular margin; mandible slender, edentate ( Fig. 24 ). Scape of antenna gently convex; F1 scarcely longer than F2; F2 as long as F3. Palpal segments slender.

Mesosoma . Dorsally foveate-reticulate (foveae larger on dorsal face of propodeum than elsewhere) ( Fig. 25 ); pronotum with anterior face gently declivous and posterior margin feebly concave, longitudinally ridged laterally; propodeal posterior face gently declivous, smooth and shiny. Mesopleuron smooth anteriorly and coarsely punctate posteriorly; metapleuron longitudinally coarsely ridged. Mesosternum polished and impunctate.

Metasoma. T1 widened posteriorly (pear-shaped), slightly longer than its maximal width, superficially foveate, with apicomesal setal tuft 0.7 × as wide as that on T2 ( Fig. 26 ); T2 bell-shaped, 0.7 × as long as broad, coarsely reticulate-foveate ( Fig. 26 ); T3 with superficial sparse punctures progressively vanishing towards posterior margin; T4, T5 narrow and puncticulate; T6 subtriangular, with longitudinal interrupted ridges, bordered laterally with sharp evenly spaced teeth progressively reduced in size distally ( Fig. 27 ). S1 smooth posteriorly, with superficial sparse punctures anteriorly; S2 and S3 sparsely punctate, punctures contiguous laterally; S4, S5 smooth; S1−S5 with a row of sparse punctures along their apical margin; S6 smooth except for few punctures apicolaterally.

MALE unknown.

Distribution. Egypt: Wadi Digla.

Remarks. Apterogyna oshaibahi is nearest to A. olivieri except for the following: body with scattered setae (while dense in A. olivieri especially on head); mesosomal dorsum with scattered erect setae (with dense recumbent setae intermixed with erect ones in A. olivieri ); setal tufts on T1 and T2 moderately-developed (well-developed in A. olivieri ). A new species also resembles A. mateui but differ in the following: metasomal T2 coarsely reticulatefoveate, T3 with scattered superficial punctures ( Fig. 26 ) (T2–T3 with oblong punctures and few ridges in between in A. mateui ).

Etymology. This species is named in honour of the late Prof. Alaa Din A. Oshaibah professor of the first author).

Figures

FIGURES 23 – 27. Apterogyna oshaibahi sp. nov., holotype, ♀. 23. Habitus, dorsal view; 24. Head, frontal view; 25. Mesosoma, lateral view; 26. T 1 – T 2; 27. T 6.