Ophiomyia simplex (Loew, 1869) (fig. 57–60)

M a t e r i a l e x a m i n e d. Stara Pokrovka, 13.06.2010, 2 ♂.

R e d e s c r i p t i o n. Head (fig. 57, 58). Orbit strongly projected above eye in profile, shining; 2 orb s, 3 fr s; frorb sta reclinate, sparse; keel and vibrissa lacking; lunule with round deepening in centre; ocellar triangle conspicuously shining, reaching the level of 2nd orb s; maximal height of eye 5.0 × maximal height of gena; 1st flagellomere small, rounded.

Wing. Costa ending after R 4+5; last and penultimate sections of M equal; calypter grey, fringe and margin black. Length of wing 2.2 mm.

Mesonotum black; 2 dc; halter and legs black.

Male genitalia (fig. 59, 60). Distiphallus 0.11 mm long, 2.0 × as wide as endophallus (ventral view). Basiphallus highly asymmetrical.

D i s t r i b u t i o n. Occurring in most of Western Europe, Ukraine (Guglya, 2011), the United States and Eastern Canada (Spencer, 1976).

H o s t p l a n t. Asparagaceae: Asparagus officinalis L. (Spencer, 1990).

B i o n o m i c s. Larva forms external stem mines (Spencer, 1990).