Eudorylas rubrus ( Hardy, 1950 )

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 94

Eudorylas rubrus ( Hardy, 1950)

( Figs 31G–L )

Dorilas (Eudorylas) rubrus Hardy 1950: 35 .

Diagnosis: Surstyli with long hairs on ventral side; SES narrow, without hairs; phallic guide wide apically with a projection on the right; phallus trifid, small protuberance at branching.

Type material: Democratic Republic of Congo: 1♂, HT, Congo belge: Kiwu, Rutshuru (riv. Musugereza ), 1100 m, 8-vii-1935, G.F. De Witte: 1631; 1♂, PT, same data as HT, 4-vii-1935, No. 1606 ( MRAC) .

Other material examined: Botswana: 1♂, Moenge college, 24.09.- 01.10.1986, MT [Malaise trap], leg. De Meyer ( ISNB) ; Kenya: 1♂, W Kakamega #73, Kakamega Forest Reserve, 00º22’N: 34º53’E, 1620 m, Date: 24.xi.1992, A Whittington & J Londt, Indigenous forest paths ( NMSA) .

Male

Head. Third antennal segment acuminate; yellow. Face silvery pollinose. Frons, upper part shining black, lower part silvery pollinose; eyes touching for distance equal to 3.5 times ocellar triangle. Occiput, lower half greyish pollinose, upper half less so.

Thorax. Humeri yellow. Mesonotum (viewed obliquely from front) and scutellum golden-yellow pollinose; mesonotum greyish pollinose from the side. Scutellum with 7–8 pairs of short, pale hairs. Dorsocentral hairs weakly developed. Halter yellow.

Legs. Trochanters, femora, knees, tibiae and tarsal segments yellow, last segment brown. Ventroapical row of 5–6 strong, black spines on all femora as long as with of t3 at base (sometimes longer). Subapical (distal) spines on first four tibiae present. No anteromedial hairs on 3rd tibia. Hind trochanter bare on ventral side. Pulvilli slightly shorter than last tarsal segment.

Wing. Fourth costal section 1.6–1.7 times as long as third costal section. Cross-vein R-M beyond 2/5 of discal cell. Pterostigma fully coloured. Hairs on tegula absent.

Abdomen. Viewed obliquely from front tergites shining black, T3,4 with orange-brown ground colour. Hairs dispersed, short and white. 2–3 (6) dark, lateral bristles on first tergite. Postabdomen in dorsal view: T5 1.2 times as long as ST8. Genitalia without dissection: black with golden-yellow pollinosity, m.a. triangle shaped, rounded, SS and tip of EP yellow.

Genitalia. Surstyli slightly asymmetrical, with long hairs on ventral side; ST8 enlarged ( Fig. 31H ). SES narrow, without hairs; gonopods subsymmetrical; phallic guide wide apically with a projection on the right; phallus trifid, small protuberance at branching ( Fig. 31L ); ejaculatory apodeme flat, apically wide; sperm pump small, linear ( Fig. 31K ).

Female—Unknown.

Distribution— Botswana, Democratic Republic of Congo, Kenya.

Figures

FIGURE 31. Male genitalia of Eudorylas rooibergensis sp. nov. (A–F) and E. rubrus (G–L).—A: outer surstylus with phallic guide and outer gonopod, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: surstyli, dorsal view, E: sperm pump with ejaculatory apodeme, F: ventral view with phallic guide, phallus (without ST8), G: outer surstylus with phallic guide and outer gonopod, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: surstyli, dorsal view, K: sperm pump with ejaculatory apodeme, L: ventral view with phallus and phallic guide (without ST8). Scale bars: 0.1 mm