Dasydorylas turneri (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 32-34

Dasydorylas turneri (Hardy, 1949)

( Figs 10G–L )

Dorilas (Eudorylas) turneri Hardy 1949 a: 58 — comb. nov.

Diagnosis: No anteromedial hairs on 3rd tibia. T5 three times as long as ST8, S7 enlarged. Surstyli large, both hook-shaped in lateral view and with extended basal lobes; SES clearly visible, with 16–18 hairs on both sides; phallic guide narrowing towards tip, S-shaped in lateral view; phallus: only one branch visible.

Type material: South Africa: 1♂, HT, Cape Town, Milnerton , Jan. 1926; S. Africa, R.E. Turner, Brit. Mus. 1926- 71 ( BMNH) .

Other material examined: South Africa: 2♂, Cape Prov , 7km N Prince Alfreds Hamlet 21.xi.1986, J.G.H. Londt 850m, Malaise trap 3319AD (1 NMSA, 1 HNHM) ; 1♂, on Protea caffra (19), Mike’s Pass, 1640m, Cathedral Peak area , Natal Drakensberg , 32/9, Natal South Africa , Pajor Istvan (25/9/1988) ( NMSA) ; 1♂, on Protea caffra (21), Mike’s Pass, 1640m, Cathedral Peak area , Natal Drakensberg , 65, Natal South Africa , Pajor Istvan (9/10/1988) ( HNHM) ; 1♂, Cape of Good Hope, Nature Reserve , III-7-10-1968, Paul J. Spangler ( USNM) .

Male

Head. Third antennal segment obtuse; brown. Face silvery pollinose. Frons, upper part shining black, lower part silvery pollinose except a black median line as wide as 1/3 of frons; eyes touching for distance equal to 3.5–4 times ocellar triangle. Occiput, lower half silvery pollinose, upper half less so.

Thorax. Humeri pale brown. Mesonotum (viewed obliquely from front) brownish pollinose, along anterior margin more silvery; also grey from the side. Scutellum brownish pollinose, with 6–8 pairs of short, pale hairs. Dorsocentral hairs weakly developed. Halter brown.

Legs. Trochanters and base of femora yellow, femora black with silver pollinosity (f3 shining posteroventrally), knees, tibiae, tarsal segments yellow, last segment brown. Ventroapical row of 10–12 short, black spines on mid femora; no spines on 3rd femur. Subapical (distal) spines on first four tibiae present, but weakly developed. No anteromedial hairs on 3rd tibia. Hind trochanter covered with short, white pubescence on ventral side. Pulvilli as long as last tarsal segment.

Wing. Fourth costal section as long as third costal section. Cross-vein R-M beyond 1/3 of discal cell. Pterostigma fully coloured. Hairs on tegula absent.

Abdomen. Viewed obliquely from front tergites subshining black with slight brownish pollinosity on T1,2, sides with silver pollinosity. Minute whitish hairs dispersed. Four dark lateral spines on first tergite. Postabdomen in dorsal view: S7 clearly visible; T5 three times as long as ST8. Genitalia without dissection: black, ST8 small, S7 enlarged, EP and SS yellowish.

Genitalia. Surstyli large, subsymmetrical, both hook-shaped in lateral view and with extended basal lobes; epandrium as long as broad; ST 8 in dorsal view not extending too much to the right, m.a. small, round ( Fig. 10H ). SES clearly visible, with 16–18 hairs on both sides; gonopods weakly developed, symmetric; hypandrial lobes elongated; phallic guide narrowing towards tip ( Fig. 10L ), S-shaped in lateral view; phallus: no division, only one branch visible ( Fig. 10G ); ejaculatory apodeme linear, broadening at tip; sperm pump oval with two small projections ( Fig. 10K ).

Female—Unknown.

Distribution— South Africa.

Figures

FIGURE 10. Male genitalia of Dasydorylas sordidatus (A–F) and D. turneri (G–L).—A: outer surstylus with phallic guide and outer gonopod, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: ventral view with phallic guide and phallus (without ST8), E: sperm pump with ejaculatory apodeme, F: surstyli, dorsal view, G: outer surstylus with phallic guide, phallus 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 phallic guide and phallus (without ST8). Scale bars: 0.1 mm