Eudorylas libratus
Creators: name: FÖLDVÁRI, MIHÁLY
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Pipunculidae
Eudorylas
Eudorylas libratus

description: Eudorylas libratus (Hardy, 1949)
(Figs 24G–L)
Dorilas (Eudorylas) libratus Hardy 1949 a: 41.
Diagnosis: Cross-vein R-M just before middle of discal cell. ST8 with a groove dorsally, no m.a. Surstyli asymmetrical, both with basal lobes ventrally; epandrium wider than long; SES with 12–13 hairs on both sides; phallic guide broad, inner surface curved, tip may be broken.
Type material: South Africa: 1♂, HT, Mossel Bay, Cape Province, April 1921; S.Africa, R.E. Turner, Brit. Mus. 1921-210 (BMNH); 1♂, PT, same data as HT, 15–28.iii.1922, ...1922-153, Paratype No 58389 (USNM).
Male
Head. Third antennal segment acute, pilose; dark brown. Face silvery pollinose. Frons brownish pollinose; eyes touching for distance equal to 4 times ocellar triangle. Occiput silvery pollinose.
Thorax. Humeri dark brown. Mesonotum (viewed obliquely from front) brownish pollinose, greyish along anterior margin; faintly greyish pollinose from the side. Scutellum brownish pollinose, with 10–12 pairs of pale and short hairs. Dorsocentral hairs very short, but distinct. Halter dark brown.
Legs. Trochanters and base of femora yellow, femora dark brown (f1,2 brownish pollinose, f3 shining pv), knees, tibiae yellow. Tarsal segments brown, last segment darker. Ventroapical row of 2–3 short black spines on f2; no spines on 1st and 3rd femur. Subapical (distal) spines on first four tibiae absent. No anteromedial hairs on 3rd tibia. Hind trochanter covered with minute whitish hairs on ventral side. Pulvilli equal to last tarsal segment.
Wing. Fourth costal section 0.7 times as long as third costal section. Cross-vein R-M just before middle of discal cell. Pterostigma fully coloured. 2–3 whitish hairs on tegula.
Abdomen. Viewed obliquely from front tergites black, pollinose, hind margins: distal 1/4 of T1–4 and 1/2 of T5 greyish pollinose, sides with grey patches. Hairs dispersed, short, white and weakly developed. 2–3 strong, black lateral spines on first tergite. Postabdomen in dorsal view: edge of S7 visible; T5 1.5 times as long as ST8. Genitalia without dissection: ST8 with a groove dorsally, EP and SS yellow, no m.a.
Genitalia. Surstyli asymmetrical, both with basal lobes ventrally; epandrium wider than long; ST8 in dorsal view not very much extending to the right (Fig. 24H). SES with 12–13 hairs on both sides; gonopods less developed, roundish; phallic guide broad, inner surface curved, tip may be broken (Fig. 24J); phallus lost; ejaculatory apodeme linear; sperm pump elliptic, with two projections (Fig. 24K).
Female—Unknown.
Remarks —The drawing in Hardy (1950: 32, Fig. 15a) does not correspond with the genitalia of the HT, he mentions additional specimens, which are clearly not E. libratus. The “divided” outer surstylus has probably been broken.
Distribution— Democratic Republic of Congo, South Africa.
description: Published as part of FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), pp. 1-121 in Zootaxa 3656 (1) on pages 75-76, DOI: 10.11646/zootaxa.3656.1.1, http://zenodo.org/record/6039126