Clistoabdominalis lomholdti Foldvari 2003

Clistoabdominalis lomholdti Földvári, 2003

(Figs 6A–F, 40E, L)

Clistoabdominalis lomholdti Földvári 2003 a: 169.

Diagnosis: Third antennal segment whitish yellow, arista black. Scutellum silvery pollinose, with 7–8 pairs of strong hairs; f3 much thicker than others and curved. Hind trochanter triangle shaped, with 8–10 white hairs. Surstyli with broad base and narrow tip; SES on both sides with a patch of hairs; gonopods asymmetrical, OG longer; sides of phallic guide parallel, tip rounded; ejaculatory apodeme and sperm pump parachute-like (as in E. flexus).

Type material: Namibia: 1♂, HT, South West Africa, Gobabeb 26.I.1978, Kuiseb River Bed, O. Lomholdt leg.; 1♂, PT, same data; 1♀, PT, South West Africa, Rooibank, 7.II.1978, Kuiseb River, small dunes with bushes, O. Lomholdt leg. (all ZMUC).

Male

Head. Third antennal segment acuminate; whitish yellow, arista black. Face silvery pollinose. Frons, upper part shining black, lower part silvery pollinose; eyes touching for distance equal to 2 times ocellar triangle (on male PT eyes are not touching). Occiput, greyish pollinose.

Thorax. Humeri yellow. Mesonotum (viewed obliquely from front) silvery pollinose; also from the side. Scutellum silvery pollinose, with 7–8 pairs of strong hairs. Dorsocentral hairs well developed. Halter yellow, base of stem brown.

Legs. Trochanters and base of femora yellow, femora yellow with brown markings on distal half, f3 much thicker than others. Knees, tibiae yellow, hind tibia more curved than in most of the species. Tarsal segments yellow, last segment brown. Ventroapical row of 9–12 short, black spines on f2; only whitish hairs on 3rd femur. Subapical (distal) spines on first four tibiae present. No anteromedial hairs on 3rd tibia. Hind trochanter triangle shaped, with 8–10 white hairs on ventral side as long as width of tibia at base. Pulvilli shorter than last tarsal segment.

Wing. Fourth costal section as long as third costal section. Cross-vein R-M at 1/3 of discal cell. Pterostigma fully coloured. No hairs on tegula.

Abdomen. Viewed obliquely from front tergites silvery pollinose, ST8 more brown in ground colour, sides more greyish. Hairs dispersed, as long as width of t3 at base, on T2 somewhat longer. Laterally 1–3 pale hairs on first tergite. Postabdomen in dorsal view: T6, S7 or EP not visible; T5 0.7 times as long as ST8. Genitalia without dissection: very large ST8, no m.a., EP+SS completely yellow.

Genitalia. Surstyli with broad base and narrow tip; ST8 enlarged (Fig. 6B). Borders of SES uncertain, on both sides with a patch of hairs; gonopods asymmetrical, OG longer; sides of phallic guide parallel, tip rounded (Fig. 6C); phallus trifid, branches pointed; ejaculatory apodeme and sperm pump parachute-like (as in E. flexus, (Fig. 6F)).

Female

As male except for the following characters. Frons, eyes separated; probably silver-grey pollinose (greasy in PT) except in front of ocellar triangle for length equal to 2 times the triangle. Femora slightly thickened, form of trochanters moderately modified, t3 less curved than in male. Pulvilli and claws about 1.5 times as long as last tarsal segment. Female ovipositor (Figs 40E, L) with modified S6 to receive it, base visible, not enlarged, without protuberances.

Distribution— Namibia.