Eudorylas ghesquierei ( Hardy, 1950 )

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 69-70

Eudorylas ghesquierei ( Hardy, 1950)

( Figs 23A–F , 39R )

Dorilas (Eudorylas) ghesquierei Hardy 1950 : 29.

Diagnosis: Male eyes narrowly dichoptic. Surstyli broad; phallic guide broad, sides parallel, tip narrowing and with small hairs; phallus trifid with teeth on the branches. Female pulvilli as long as the last tarsal segment, or slightly longer).

Type material: Democratic Republic of Congo: 1♂, HT, Congo belge, Eala , XI. 1936, J. Geshquière, 3274, I.G. 10.482 ( ISNB) .

Other material examined: Angola: 3♂, Angola (A2), Rocadas , R. Cunene, 19–22.ii.1972, Southern African Expedition B.M. 1972-1 ( BMNH, 1 HNHM) . Namibia: 7♂, 1♀, West Caprivi Park, Kwando River : Susuwe , 17°45'37''S 23°20'55''E, 28.ix.–02.x.1998, A.H. Kirk-Spriggs, Malaise trap, dry woodland ( NMNW, 2 HNHM) . South Africa: 1♂, Natal, Cathedral Peak area, Forest Reserve 1800m, 2829 Cc , 4–11.iv.1977, JGH Londt ex Malaise ; 1♂, Transvaal , 8 km NW Barberton on Badplass Rd SE2530DD, 6–8.iv.1985 J. Londt, Bushveld long grass (both NMSA) . Swaziland: 1♂, #48, Mbuluzi Nature Reserve, 26º08’S: 32º00’E, 200m, Date : 25.iv.1991, J Londt & l Schoeman, Mixed woodland area ( NMSA) . Zimbabwe: 4♂, Victoria Falls Nat’l. Park , IV-3-6-1968, Paul Spangler [2 USNM specimens with label: taken in Malaise trap](3 USNM, 1 HNHM) .

Male

Head. Third antennal segment acuminate; dark brown. Face silvery pollinose. Frons, upper part shining black, lower part silvery pollinose with subshining median line; eyes dichoptic, they are close to each other for a distance equal to half the length of ocellar triangle. Occiput, upper half subshining black behind ocelli, lower half silvery pollinose.

Thorax. Humeri dark brown. Mesonotum (viewed obliquely from front) subshining black, along anterior margin greyish pollinose; silvery pollinose from the side. Scutellum black, with short, pale hairs. Dorsocentral hairs very weakly developed. Halter dark brown.

Legs. Trochanters and base of femora dark brown, femora dark brown and shining ventrally on all legs, knees, tibiae, tarsal segments brown, last segment darker. Only short hairs on first four femora; 6 weak spines on 3rd femur. Subapical (distal) spines on first four tibiae present, but weakly developed. No anteromedial hairs on 3rd tibia. Hind trochanter with short white hairs on ventral side. Pulvilli as long as last tarsal segment.

Wing. No wing on HT. 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 T1 brownish pollinose, T2 with brownish, triangle-shaped patch in the middle, otherwise abdomen shining black. Hairs dispersed, short and weakly developed. Four black lateral spines on first tergite. Postabdomen in dorsal view: T5 1.3 times as long as ST8. Genitalia without dissection: black, medium sized.

Genitalia. Surstyli broad, parallel; ST8 wide, m.a. large ( Fig. 23B ). SES borders only clear in lateral view; gonopods asymmetrical, OG longer; phallic guide broad, sides parallel, tip narrowing and with small hairs; in ventral view ( Fig. 23D ), bent towards SS in lateral view ( Fig. 23E ); phallus trifid with teeth on the branches ( Fig. 23A ); ejaculatory apodeme short, broadening in the end; sperm pump flat, oval.

Female

The AT of this species is in MRAC; not studied. The ovipositor of a female associated with males was drawn ( Fig. 39R ).

Remarks —There was one female at ISNB identified by Hardy (in 1960) as E. ghesquierei , but the affinities with the HT are uncertain, since both are damaged specimens.

Distribution— Angola, Democratic Republic of Congo, Namibia, South Africa, Swaziland, Zimbabwe.

Figures

FIGURE 23. Male genitalia of Eudorylas ghesquierei (A–F) and E. hirsutus sp. nov. (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, phallus, sperm pump and ejaculatory apodeme (without ST8), E: phallus, lateral view, F: surstyli, dorsal view, G: dorsal view, H: inner surstylus, lateral view, I: outer surstylus with phallic guide, lateral view, J: sperm pump with ejaculatory apodeme, K: surstyli, dorsal view, L: ventral view with phallus and phallic guide (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