Eudorylas encerus (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 58

Eudorylas encerus (Hardy, 1949)

( Figs 19A–F )

Dorilas (Eudorylas) encerus Hardy 1949 a: 30 .

Dorilas (Eudorylas) modicus Hardy 1949 b: 2 — syn. nov.

Diagnosis: T5 at least 2 times as long as ST8, distinct yellow band in the middle of EP. Surstyli turned 90° ventrally, epandrium long, robust compared to ST8, bearing a finger-like projection in ventral view; gonopods may be absent or small; hypandrium with bean-like distal lobes; phallic guide with short, roundish structure at tip.

Type material: Malawi: 1♂, HT, Nyasaland, Limbe , R.C. Wood, 864, 19.12.16 [in Hardy 1949 a: 31 as “ 10.XII.1916 ”], Pres by Com. Inst. Ent., BM 1953-357 ( BMNH) . Democratic Republic of Congo: 1♂ [HT of D. modicus ], Congo belge: Elisabethville [today: Lumumbashi], 25.IV.1939, H.J. Brédo, I.G. 12548 ( ISNB) .

Other material examined: South Africa: 1♂, RSA: Cape Prov. Patrysberg , N of Citrusdal, 06.10.1994, loc. 7, leg. Roy Danielsson ( ZML) .

Male

Head. Third antennal segment obtuse; yellow. Face silvery pollinose. Frons, upper part subshining black, lower part greyish pollinose, elongated shining patch in the middle; eyes touching for distance equal to 2.5–3.5 times ocellar triangle. Occiput, upper half brownish pollinose, lower half greyish.

Thorax. Humeri dark brown to black. Mesonotum (viewed obliquely from front) black with brownish pollinosity, along anterior margin with two greyish patches; pale brown from the side with brownish or grey pollinosity. Scutellum subshining black, with 10–12 short, pale hairs. Dorsocentral hairs distinctly visible, but short. Halter yellow-brown, base somewhat darker.

Legs. Trochanters, femora, knees, tibiae and tarsal segments yellow, last segment brown. Ventroapical row of 3–6 short, black spines on first four femora; 4–5 longer spines on 3rd femur. Subapical (distal) spines on first four tibiae uncertain. 2–3 erected anteromedial hairs on 3rd tibia. Hind trochanter without hairs or spines on ventral side. Pulvilli shorter or as long as last tarsal segment.

Wing. Fourth costal section 0.8–1.2 times as long as third costal section. Cross-vein R-M at 2/5 of discal cell. Pterostigma fully coloured. Hairs on tegula uncertain.

Abdomen. Viewed obliquely from front T1 and anterior half of T2 with stripes, other parts shining black, sides shining, T1,2 pale brown. Hairs dispersed, short and pale. 4–5 longer, pale lateral spines on first tergite in a row. Postabdomen in dorsal view: EP partly visible; T5 at least 2 times as long as ST8. Genitalia without dissection: roundish, m.a. ellipsoid, EP and SS more yellow-brown, distinct yellow band in the middle of EP.

Genitalia. Surstyli turned 90° ventrally, inner edge distinct, long; epandrium long, robust compared to ST8 ( Fig. 19B ), bearing a finger-like projection in ventral view ( Fig. 19F ). SES uncertain; gonopods may be absent or small; hypandrium with bean-like distal lobes; phallic guide with short, roundish structure at tip ( Figs 19A, F ); phallus may be broken, uncertain; ejaculatory apodeme slender widening at the end; sperm pump round ( Fig. 19E ).

Female—Unknown.

Distribution— Democratic Republic of Congo, Malawi, South Africa.

Figures

FIGURE 19. Male genitalia of Eudorylas encerus (A–F) and E. excisus (G–M).—A: outer surstylus with phallic guide, lateral view, B: dorsal view, C: inner surstylus with epandrial process, lateral view, D: surstyli, dorsal view, E: sperm pump with ejaculatory apodeme, F: ventral view with phallic guide and ejaculatory apodeme (without ST8), G: outer surstylus, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: sperm pump with ejaculatory apodeme, K: phallic guide, gonopods and hypandrium, ventral view, L: phallic guide and phallus lateral view, M: surstyli, dorsal view. Scale bars: 0.1 mm