Eudorylas unanimus (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 107-110

Eudorylas unanimus (Hardy, 1949)

( Figs 37A–F )

Dorilas (Eudorylas) unanimus Hardy 1949 b: 4 .

Diagnosis: Trochanters and femora black (all legs shining ventrally), knees yellow, tibiae yellow-brown on basal half, distally brown. Vein Cu-M sharply bent (intruding into discal cell). SES present, but borders uncertain; gonopods symmetric, pointed; phallic guide with a hook on the right (in lateral view with additional supporting structure); phallus trifid, short, branches close to each other (with teeth on one of the branches in lateral view); phallic sheath present.

Type material: Democratic Republic of Congo: 1♂, HT, Congo-Belge, Rutshuru , 6-XII-1937, J. Ghesquiere (sic!), I.G. 10.482 ( ISNB) .

Other material examined: Ivory Coast: 4♂, BancoNat. Prk N Abidjan S side 23& 27.iv. 1989, 05º22’N: 04º03’W, J G H Londt Edges of wide track in forest (2 NMSA, 1 HNHM) . Uganda: 1♂, Kilembe., 4,500 ft., F. W. Edwards.; Ruwenzori Range., xii.1934 – i.1935., B.M.E. Afr. Exp., B.M. 1935-203 ( BMNH) .

Male

Head. Third antennal segment acuminate; dark brown. Face silvery pollinose along margins, subshining black in the middle. Frons, upper part subshining black, lower part silvery pollinose; eyes touching for distance equal to 3 times ocellar triangle. Occiput, upper half brownish pollinose, lower half more silvery pollinose.

Thorax. Humeri brown, paler than mesonotum. Mesonotum (viewed obliquely from front) subshining black; also black from the side with greyish pollinosity. Scutellum black, paler on margins, with very weakly developed hairs. Dorsocentral hairs weakly developed. Halter yellow brown.

Legs. Trochanters and femora black (all legs shining ventrally), knees yellow, tibiae yellow-brown on basal half, distally brown. Tarsal segments yellow-brown, last segment black. Ventroapical row of 6–8 short, stout spines on first four femora; 8 spines on 3rd femur, 2 times longer than on other legs. Subapical (distal) spines on first four tibiae absent. No anteromedial hairs on 3rd tibia. Hind trochanter covered with weak white hairs on ventral side. Pulvilli shorter than last tarsal segment.

Wing. Fourth costal section 0.6 times as long as third costal section. Cross-vein R-M at 2/5 of discal cell. Vein Cu-M sharply bent (intruding into discal cell). Pterostigma fully coloured. Hairs on tegula uncertain.

Abdomen. Viewed obliquely from front tergites completely black. Hairs dispersed, short and weakly developed. Lateral spines on first tergite: 3–5 strong, black bristles. Postabdomen in dorsal view: T5 1.3 times as long as ST8. Genitalia without dissection: thickened, dark brown.

Genitalia. SES present, but borders uncertain; gonopods symmetric, pointed (some hairs at tips and along inner edges may be present); phallic guide ( Fig. 37B ) with a hook on the right (in lateral view with additional supporting structure, Fig. 37A ); phallus trifid, short, branches close to each other (with teeth on one of the branches in lateral view); ejaculatory apodeme linear, but thickened; sperm pump elliptic with projection ( Fig. 37E ); phallic sheath present.

Female—Unknown.

Remarks —There are two females at ISNB identified by Hardy (1951) as E. unanimus , but the affinities with the HT are uncertain, since they were collected in different years and at different localities. Therefore no formal female description is given here.

Distribution— Burundi, Democratic Republic of Congo, Ivory Coast, Uganda.

Figures

FIGURE 37. Male genitalia of Eudorylas unanimus (A–F) and E. wittei (G–L).—A: outer surstylus with phallic guide, phallus and outer gonopod, lateral view, B: ventral view with phallic guide, phallus (without ST8), C: inner surstylus, lateral view, D: surstyli, dorsal view, E: sperm pump with ejaculatory apodeme, F: dorsal view, G: outer surstylus with phallic guide and outer gonopod, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: phallus with sperm pump and ejaculatory apodeme, K: surstyli, dorsal view, L: ventral view with phallic guide (without ST8). Scale bars: 0.1 mm