Eudorylas diversus (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 57

Eudorylas diversus (Hardy, 1949)

( Figs 18H–M )

Dorilas (Eudorylas) diversus Hardy 1949 a: 29 .

Dorilas (Eudorylas) pusillus Hardy 1949 a: 52 — syn. nov.

Diagnosis: One or two stronger, erect anteromedial hairs on 3rd tibia. S5 divided. Surstyli hairy, subsymmetrical, flattened, broad at tip. Only lower edge of SES is visible; gonopods subsymmetrical with 3–4 stronger hairs close to tip, phallic guide with distinct lateral projection on the left, tip elongated, pointed; phallus trifid (not divided until apical 1/3), two branches and a membranous part with teeth-like structures.

Type material: South Africa: 1♂, HT [no head], Cape Province, Matjesfontein , 1-18.xii.1928., S.Africa, R.E. Turner, Brit. Mus., 1929-15 ( BMNH) ; 1♂, PT, Cape Town, Milnerton , Jan. 1926., “... 1926-71.”, Paratype No 58388 ( USNM) ; 1♂ [HT of E. pusillus ], S.Africa, Natal National Park , iii.1932, Miss [ion] A. Mackie ( BMNH) .

Other material examined: South Africa: 1♂, S.AFRICA (16), Hester Malan N.R., 10 mls., E Springbok , 7- 8.i.1972; Southern African Exp. B.M. 1972-1 ( BMNH) ; 1♂, Natal Umlalazi Nature Res. , 2831DD, 2-10.x.1982, Coll. J.G.H. Londt, Dune-forest & edges ; 1♂, Cape Prov, 14 mi [les] SE. Langebaan , 200 ft, Sept 18, 1972, M.E. Irwin, 3318 Aa, coastal dunes and sandy plain ; 1♂, Natal Prov, Drakensberg Mts. (2929 Ad ), Giants Castle Res. 5800 ft, 1.XI.1972, ME Irwin ; 1♂, Natal #44, Doornkloof Farm, 29º59’S: 30º15’E, 600m, Date : 30.iv.1991, Whittington, Evenhuis, Bushveld nr. Mkomazi R ; 1♂, Bushmans Pass, Maloti Mountains, 2125–2250m, 8-14 Jan. 1963, Maseru District , Basutoland, B. & P. Stuckenberg ; 1♂, Cape Prov, Boesmansriviermond , 3226AD, 27– 31.xii. 1985, J Londt, Hill above caravan park (all NMSA) ; 4♂, E. Cape #4, 5 km ENE of Rhodes , 30º47’S: 28º00’E, 2066m, 4 & 5 ii. 1992, Natal Museum Expedition, ravine, Malaise trap (3 NMSA, 1 HNHM) ; 4♂, Natal, Cathedral Peak area, Forest Reserve 1800m, 2829 Cc , 4–11.iv.1977, JGH Londt ex Malaise (3 NMSA, 1 HNHM) ; 2♂, Cape Prov, Pakhuis Pass , east side, 17-VIII-1973, ME Irwin, 600m, meadow with flowers, 3219 Aa (1 NMSA, 1 HNHM) ; 1♂, Cape of Good Hope Nature Reserve , III-7-10-1968, Paul J. Spangler ( USNM) .

Male

Head. Third antennal segment acuminate; dark brown, tip paler. Face silvery pollinose. Frons, upper part shining black, lower part silvery pollinose; eyes touching for distance equal to 2.5–4 times ocellar triangle. Occiput, lower half silvery pollinose, upper half less so.

Thorax. Humeri yellow-brown. Mesonotum (viewed obliquely from front) brownish pollinose, along anterior margin with two silvery patches; brownish with silvery pollinosity on the side. Scutellum brownish pollinose, with 0–8 pairs of short pale hairs. Dorsocentral hairs distinct. Halter pale brown.

Legs. Trochanters and femora dark brown, femora with silver pollinosity and shining black ventrally (f3 posteriorly as well), knees yellowish brown, tibiae and tarsal segments pale brown, last segment darker. Ventroapical row of 2–10 short, weak spines on first four femora; 4–8 stronger, black spines on 3rd femur. Subapical (distal) spines on first four tibiae present. 1–2 stronger, erect anteromedial hairs on 3rd tibia. Hind trochanter with 2–3 longer white hairs on ventral side. Pulvilli slightly shorter than last tarsal segment.

Wing. Fourth costal section 0.5–0.7 times as long as third costal section. Cross-vein R-M between 1/4 and 1/2 of discal cell. Pterostigma fully coloured. One minute dark hair on tegula.

Abdomen. Viewed obliquely from front tergites brownish pollinose, except distal half of T5, which is silvery pollinose, sides: hind margins of T2–4 and lateral part of T5 silvery pollinose. Hairs indistinct. 1–4 black lateral spines on first tergite. Postabdomen in dorsal view: S7 visible; T5 as long as ST8. Genitalia without dissection: enlarged, brownish ST8, with rounded, large m.a. (occupies 3/4 of width of ST8), SS and EP pale brown.

Genitalia. S5 divided. Surstyli hairy, subsymmetrical, flattened, broadening at tip; large m.a., occupying almost half of ST8 (in dorsal view of genitalia, Fig. 18I ). Only lower edge of SES is visible; gonopods subsymmetrical with 3–4 stronger hairs close to tip, in lateral view with 3 setae, smaller hairs at base; hypandrium connected to EP; phallic guide with distinct lateral projection on the left (an additional membranous process may be present on the right), tip elongated, pointed; phallus trifid (not divided until apical 1/3), two branches and a membranous part with teeth-like structures ( Fig. 18M ), in lateral view hook-like projection and membranous parts not clear ( Fig. 18H ); ejaculatory apodeme linear, slightly broadened at tip; sperm pump ellipsoid, without projections ( Fig. 18K ).

Female—Unknown.

Distribution— South Africa.

Figures

FIGURE 18. Male genitalia of Eudorylas discretus (A–G) and E. diversus (H–M).—A: outer surstylus with phallic guide, phallus and outer gonopod, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: sperm pump with ejaculatory apodeme, E: surstyli, dorsal view, F: ventral view with phallic guide and phallus (without ST8), G: sperm pump with ejaculatory apodeme, H: outer surstylus with phallic guide and phallus, lateral view, I: dorsal view, J: inner surstylus, lateral view, K: sperm pump with ejaculatory apodeme, L: surstyli, dorsal view, M: ventral view with phallic guide and phallus (without ST8). Scale bars: 0.1 mm