. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Stratiomyiidae. 33 1. O. trilineata Fabr. 1781. Stratiomys, Fabr. Spec. Ins. Il, 418, 9. — Zett. Dipt. Scand. I, 142, 2. — 1857. Loew, Berl. Ent. Zeitsclir. I, 22. — 1862. Schin. F. A. I. 9. — 1903. Kat. palaarkt. Dipt. II, 15. Male. Eyes bare, the facets in tlie lower tliird smaller tlian above: the eyes greenish with a brownish red band on the dividing line between the large and small facets. Vertex black, yellow behind the ocelli. Frontal triangle and face greenish yellow, at the inner eye-m
. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Stratiomyiidae. 33 1. O. trilineata Fabr. 1781. Stratiomys, Fabr. Spec. Ins. Il, 418, 9. — Zett. Dipt. Scand. I, 142, 2. — 1857. Loew, Berl. Ent. Zeitsclir. I, 22. — 1862. Schin. F. A. I. 9. — 1903. Kat. palaarkt. Dipt. II, 15. Male. Eyes bare, the facets in tlie lower tliird smaller tlian above: the eyes greenish with a brownish red band on the dividing line between the large and small facets. Vertex black, yellow behind the ocelli. Frontal triangle and face greenish yellow, at the inner eye-margin a dark stripe, hidden under whitish hairs; yowls and occiput black. Antennæ reddish yellow, sometinies a little darker towards the apex. Thorax green or greenish yellow with three black stripes connected behind; scutellum green, the two spines black at the tips, postscutelluni black; on the side of the thorax the green colour reaches somewhat down the pleura, the sterna are black; below the pteropleuron there is a somewhat clubshaped, oblique, green spot in the black coloured part. All tlie thorax is clothed with white, shining pubescence, whicli is yellowish on the median dorsal line. Abdomen green or greenish yellow with tliree transverse, black spots, all being somewhat curved and concave in front, connected on the sides with each other in such a way that two transverse green spots are included, one on the second. the other on the third segment; the hind margins of the segments are black; sometimes the spots are separate and only concave in front. Venter green or yellowish green. Legs all yellow. Wings hyaline, the anterior veins yellow, the stigma very slightly yellowish. Halteres green with a dark yellowish ig. 15. Wing of O. trilineata. Female. Eyes greenish with a brownish red band in the middle, not reaching the posterior margin. Front yellow or green with an impressed, black middle line and narrowly black at the eye-margins; vertex with a blac
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