Carinostigmus levifrons ( Arnold, 1947 )

Gadallah, Neveen S., Edmardash, Yusuf A., Abu El-Ghiet, Usama M. & Al-Fifi, Zarrag I. A., 2024, New additions to the crabronid fauna of the Arabian Peninsula and Saudi Arabia (Hymenoptera: Apoidea (Spheciformes): Crabronidae), new distribution records and new species, Zootaxa 5403 (5), pp. 549-570 : 564-565

Carinostigmus levifrons ( Arnold, 1947)

Figs 11 (A–C), 12(A–D)

Stigmus levifrons Arnold, 1947: 157 , ♂.

Diagnosis. Body length: 5.5–6.0 mm

Slender species, with body entirely black ( Fig. 11A–C ), antenna with yellowish scape and pedicel, flagellum reddish, darkened towards tip ( Fig. 12B ); mandible yellowish medially, black at base and tip ( Fig. 12B ); midtibia dark ferruginous, hindtibia with reddish yellow basally; pronotal lobe ivory white ( Fig. 11A ); tegula dark ferruginous ( Fig. 12C ). Wings hyaline with coloured reflections, pterostigma black with small basal yellow area, veins dark brown, distinctly paler at base ( Fig. 12A ). Inner eye margins converging towards clypeus ( Fig. 12B ); Antennal F1–3 subequal, F3 about 3.0× as long as apical width, pedicel long, conical, widened apically ( Fig. 12B ); inner carina of eye not reaching anterior ocellus ( Fig. 12B ); frons finely obliquely striate medially ( Fig. 12B ); vertex relatively long, very finely transversely striate; clypeus finely transversely wrinkled ( Fig. 12B ); gena very finely transversely striate; pronotum about 3.0× as wide as its medial length, distinctly concave anteriorly, sharply angulate antero-laterally, dentiform ( Fig. 11A, B ); propodeum smooth and shiny medially, coarsely foveolate laterally; petiole about as long as following two terga combined ( Fig. 11A, B ); gaster smooth and shiny ( Figs 11A–C , 12D ).

Material examined: 5♀, Fifa Mountain (Development Authority Farm-almukhafih), 1260 m [17º16’07ʺN 43º07’32.3ʺE], July, 2023, Malaise trap in coffee orchard, Usama Abu El-Ghiet collector .

Distribution: Benin, Kenya, Namibia, Rwanda, South Africa, Zaire, Zimbabwe ( Pulawski 2023), Saudi Arabia (new record).

Comments. This is the first record of C. levifrons for the Arabian Peninsula and Saudi Arabia. Characters of the Saudi Arabian females agrees with Leclercq’s key (1959: 40, couplet 4, as Stigmus (Carinostigmus) levifrons ).

Figures

FIGURE 11. Carinostigmus levifrons (Arnold, 1947) (♀): A, habitus laterally; B, C, habitus dorsally.

FIGURE 12. Carinostigmus levifrons (Arnold, 1947) (♀): A, fore and hind wings; B, frontal view of head; C, dorsal view of head and thorax; D, last gastral terga.