Eudorylas aethiopicus (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 38-40

Eudorylas aethiopicus (Hardy, 1949)

( Figs 12D–I , 40A–B )

Dorilas (Eudorylas) aethiopicus Hardy 1949 a: 17 .

Diagnosis: Third antennal segment long acuminate. ST8 very large; thick hairs at base of SS (6 left, 3 right); gonopods’ apical part with little “holes”, outer edges with zigzag pattern; hypandrium with two long lobes; phallic guide shorter than GP, rounded at tip. In ventral view both SS with an edge along middle line.

Type material: Kenya: 1♂, HT, H J A Turner, Naivasha , 7 [July] 37; Pres. By Comm. Inst. Ent. B.M. 1953-343 ( BMNH) ; 1♂, PT, same data as HT ( USNM) . South Africa: 1♀, AT, Cape Province: Sommerset East, October 1930; S.W. Africa, RE. Turner Brit. Mus. 1930-561 ( BMNH) .

Male

Head. Third antennal segment long acuminate, densely pubescent; brown. Face silvery pollinose. Frons silvery pollinose; eyes touching for distance equal to 3 times ocellar triangle. Occiput silver pollinose, black behind the ocellar triangle.

Thorax. Humeri pale brown. Mesonotum (viewed obliquely from front) brownish pollinose, along anterior margin more silvery; distinctly greyish pollinose from the side. Scutellum greyish-brown pollinose, distinct 4–5 pairs of pale hairs. Dorsocentral hairs very weakly developed. Halter yellow-brown, stem paler.

Legs. Trochanters and base of femora dark brown, femora black with distal 1/5 yellow (f1,2 silvery pollinose, f3 shining black on pv surface), knees yellow, tibiae yellow. Tarsal segments yellow, last segment dark brown. Ventroapical row of 4–8 short, dark spines on first four femora; some very weakly developed hairs on 3rd femur. Subapical (distal) spines on first four tibiae present. No anteromedial hairs on 3rd tibia. Hind trochanter finely pubescent, without hairs or spines on ventral side. Last tarsal segment 1.5 times longer than pulvilli.Wing. Fourth costal section 1.5 times as long as third costal section. Cross-vein R-M at 2/5 of discal cell. Distal ¾ of pterostigma coloured. No hairs on tegula.

Abdomen. Viewed obliquely from front tergites brownish pollinose, laterally more silvery, hind margins more subshining black, sides greyish pollinose. Hairs dispersed, distinct, pale, longest on ST8. No lateral spines on first tergite. Postabdomen in dorsal view: corners of S7 and EP visible; T5 1.1 times as long as ST8. Genitalia without dissection: postabdomen black with grey pollinosity; EP and SS yellow; SS very asymmetrical, protruding from abdomen; no membranous area.

Genitalia. Surstyli asymmetrical, IS longer; epandrium wide but smaller than ST8; ST8 very large ( Fig. 12E ). Borders of SES uncertain, some thicker hairs at base of SS (6 left, 3 right); gonopods flattened, apical part with little “holes”, outer edges with zigzag pattern; hypandrium with two long lobes, connected to EP; phallic guide shorter than GP, rounded at tip ( Fig. 12I ); phallus uncertain; ejaculatory apodeme short, thick, widening at tip; sperm pump long, thick tube-like, S-shaped ( Fig. 12G ). In ventral view both SS with an edge along middle line.

Female (AT - no head)

As male except for the following characters. Trochanter and base of femur yellowish brown. Pulvilli and claws about 1.5 times as long as last tarsal segment. Subapical (distal) spines distinct on first four tibiae. Cross-vein R-M just beyond 1/3 of discal cell, pterostigma fully coloured. Halter dark brown, stem pale. Abdominal tergites brownish pollinose, 1/3 to 1/5 of hind margins silvery pollinose. Two dark spines on T1. Female ovipositor ( Figs 40A–B ) with two protuberances on the inner surface of the base.

Remarks —The drawing in Hardy 1959 a: 398 is not E. aethiopicus , but resembles E. flexus .

Distribution— Kenya, South Africa.

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 40. Female ovipositors.—A–B: Eudorylas aethiopicus, C–D: Eudorylas bredoi, E: Clistoabdominalis lomholdti, F: Clistoabdominalis nitidifrons, G: Eudorylas falcatus, H–I: Eudorylas flexus, J: Clistoabdominalis crassus, K: Eudorylas setiformis, L: Clistoabdominalis lomholdti, M: Dasydorylas sordidatus, N–O: Eudorylas mikenensis, P–Q: Eudorylas decorus, R–S: Eudorylas galeatus, T: Eudorylas sinuosus, U: Eudorylas wittei, V–W: Dasydorylas evanidus. Scale bar: 0.5 mm