Eudorylas aemulus (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 37-38

Eudorylas aemulus (Hardy, 1949)

( Figs 12A–C , 39C )

Dorilas (Eudorylas) aemulus Hardy 1949 a: 16 .

Diagnosis: Third antennal segment long acuminate. Surstyli curving towards each other, both with ventral projections at base; SES with several hairs (6–7); gonopods strongly sclerotized behind PG; phallic guide with two lobes at the end and with an uncertain structure in the middle.

Type material: South Africa: 1♀, HT, Mossel Bay, Cape Province, 1–14. XI. 1921., S. Africa, R.E. Turner, Brit. Mus. 1921-476 .; 1♂, AT, Natal: Van Reenen, Drakensberg 1–22.i.1927, S. Africa R.E. Turner, B.M. 1927-54. (both BMNH) ; 1♀, PT, Cape Town, Milnerton , Jan 1926, ... 1926-71., Paratype No 58386 ( USNM) .

Male (AT—only parts of legs remain)

Head. Third antennal segment long acuminate; dark brown. Face and frons silvery pollinose. Eyes touching for distance equal to 2 times ocellar triangle. Occiput silvery pollinose.

Thorax. Humeri pale. Mesonotum (viewed obliquely from front) brownish pollinose, silvery along anterior margin; brown from the side. Scutellum brownish pollinose with weakly developed hairs. Dorsocentral hairs weakly developed. Halter dark brown, stem yellowish.

Legs. Trochanters and femora black, knees yellowish brown, proximal 2/3 of tibiae dark brown, distally yellowish. Tarsal segments yellow-brown, last segment missing. No ventroapical row of spines on femora. Subapical (distal) spines on first four tibiae very weak. Hind trochanter without hairs or spines on ventral side.

Wing. Fourth costal section approximately equals the third costal section. Cross-vein R-M just beyond 2/5 of discal cell. Pterostigma partly coloured (only distal 2/3). Hairs on tegula uncertain.

Abdomen. Greasy, colours not clear. Hairs short and weakly developed. Lateral spines on first tergite missing. Postabdomen in dorsal view: T5 1.6 times as long as ST8. Genitalia without dissection: small, dark; SS yellowish, no membranous area.

Genitalia. Surstyli curving towards each other, both with ventral projections at base; cerci elongated; ST8 large, triangle-shaped ( Fig. 12B ). Borders of SES uncertain with several hairs (6–7); gonopods subsymmetrical, strongly sclerotized behind PG; hypandrium elongated, slightly turned, not connected to EP; phallic guide with two lobes at the end and with an uncertain structure in the middle ( Fig. 12C ); phallus: missing on AT.

Female (HT and PT damaged)

As male except for the following characters. Frons, eyes separated; shining black on at least 2/3 of the upper part, otherwise probably silvery pollinose. Face silver-grey. Pv surface of f1,2 greyish pollinose, f3 shining black. Ventroapical row of 6–7 small black spines on first four femora, 5 longer, black spines on f3. One erect anteromedial hair present on t3. Pulvilli and claws about 2 times as long as last tarsal segment. Trochanters with 4– 5 fine, pale hairs ventrally (1–3 longer brown hairs may be present, as long as width of t3 at base), apical half of t3 thicker. Fourth costal section 0.8 times as long as third costal section, cross-vein R-M beyond 1/3 of discal cell. Abdomen with brownish pollinosity and grey patches on sides. Female ovipositor ( Fig. 39C ) flattened and with sclerotized ridge laterally.

Remarks —Genitalia of the male AT were lost after completing three drawings. The other two male PTs have been described as E. swanengi and E. pondolandi in Földvári (2003 a), since the shape of the genitalia were very different.

Distribution— South Africa, Nigeria.

Figures

FIGURE 12. Male genitalia of Eudorylas aemulus (A–C) and E. aethiopicus (D–I).—A: surstyli, dorsal view, B: dorsal view, C: ventral view with phallic guide (without ST8), D: outer surstylus with phallic guide and outer gonopod, lateral view, E: dorsal view, F: inner surstylus, lateral view, G: sperm pump with ejaculatory apodeme, H: surstyli, dorsal view, I: ventral view with phallic guide and gonopods (without ST8). Scale bars: 0.1 mm

FIGURE 39. Female ovipositors.—A: Eudorylas liberia, B: Eudorylas setiformis, C: Eudorylas aemulus, D: Eudorylas garambensis, E: Eudorylas remiformis, F: Eudorylas mutillatus (E. eremnoptera), G–H: Eudorylas definitus (E. excisus), I: Eudorylas facetus, J–K: Dasydorylas quasidorsalis, L: Eudorylas amuscarinum, M: Eudorylas abdominalis, N–O: Clistoabdominalis namibiensis sp. nov., P: Eudorylas mutillatus, Q: Eudorylas femoralis sp. nov., R: Eudorylas ghesquierei, S: Dasydorylas okongoensis sp. nov., T–U: Eudorylas angustus, V: Eudorylas excisus. Scale bar: 0.5 mm