Ophiomyia beckeri (Hendel, 1923) (fig. 12–17)
M a t e r i a l e x a m i n e d. Kharkiv, centre, 09.08.2011, 1 ♀; Kharkiv, mines with larva on Sonchus sp., 26.05.2013, 03, 09.06.2013 — imago, 1 ♂, 1 ♀ ; Pyatykhatki, 10.06.2010, 1 ♂; Petrivske, 22.05.2011, 03– 04.07.2010, 03.05.3013 and 11.08.2013, 3 ♂, 2 ♀ ; near Kuzemin, 13.08.2011, 1 ♀ ; near Rubizhne, 17.08.2013, 1 ♀ ; near Vakalovshchina, 16.06.2010, 1 ♀ ; near Timchenki, 06.06.2010, 1 ♀ ; Stara Pokrovka, 12.06.2012, 1 ♀ ; near Kuripchine, 27.06.2010, 1 ♀ .
R e d e s c r i p t i o n. Head (fig. 12, 13, 15). Orbit not projected above eye in profile; 2 orb s, 2 fr s; 2nd fr s, 1st and 2nd orb s equidistant, and between 1st and 2nd fr s distance twice more; frorb sta short, reclinate and slightly incurved, with a few in area of orb s proclinate; facial keel lacking; lunule oval, with upper margin slightly tapered medially; ocellar triangle matt anteriorly, reaching level of 1st orb s; frons with distinct medial longitudinal line; vibrissa present and equal in both sexes; maximal height of eye 6.0 × maximal height of gena.
Wing. Costa reaching M; last and penultimate sections of M equal; calypter and fringe grey; margin black. Length of wing 2.1 mm.
Mesonotum black, shining (anterior view); 2 dc; ac 2 nearest to sctsctl sut and 6 at level of 2nd dc; halter and legs black.
Male genitalia (fig. 14). Phallus 0.24 mm long. Basiphallus V-shaped in lateral view and G-shaped in dorsal view, reaching 0.15 length of distiphallus and distal margin of endophallus. Distiphallus 1.2× as long as basiphallus.
Female terminalia (fig. 16, 17). Both spermathecae equal, oval, length 1.4× width at widest part. Proximal and ventral margins of egg guide with sharp, well-marked, posteriorly directed teeth. Membrane of medial margin with dark scales in 1–3 irregular rows.
D i s t r i b u t i o n. Widespread in Europe, more common in Mediterranean region, also in South Africa, India (Spencer, 1976), Turkey (Civelek et al., 2009), Lithuania, Kaliningrad Region of Russia (Pakalniškis, 1994), Ukraine (Guglya, 2011, 2012).
H o s t p l a n t. Asteraceae ( Crepis spp., Hypochoeris spp., Leontodon spp., Picris spp., Sonchus spp., Taraxacum spp.) (Spencer, 1976).
B i o n o m i c s. Larva feeding in serpentine leaf mine. Pupation taking place inside of leaf (Spencer, 1976).