382 Orthorrhapha brachycera. 



II, 603,89, et 1849. VIII, 3095,89, et 1855. XII, 4638,89. — Sympycnus 

 hrevicornis 1857. Loew, Neue Beitr. V, 43. — Dolichopus nigrifibialis Zett. 

 1855. Dipt. Scand. XII, 4638, 89—90. — DoUchoims puUcarius Fa)]. 1823. 

 Dipt. Suec. Dol. 20, 28, p. p. — 1843. Zett. Dipt. Scand. II, 603, p. p. var. b. 



Male. Vertex and frons grey pruinose. Epistoma narrow, especi- 

 ally below, greyish white. Palpi whitish. Occiput grey; postocular 

 bristles black above, white below. Antennæ black, third joint short, 



Fig. 117. Antenna of S.ueneicoxa <3. X HO. 



roundish triangular, scarcely as long as broad, slightly pointed. Thorax 

 green or æneous, brownish or greyish brown pruinose and somewhat 

 dall. Pleura greenish, greyish pruinose; propleura with a few, pale 

 hairs. Abdomen green or æneous, sometimes soraevvhat coppery, a 

 little grey pruinose at the sides; it is clothed with black hairs, just 

 at the sides there are some pale hairs, especially in front; there are 

 distinct hindmarginal bristles, long on the first segment, and some of 

 these latter at the sides are pale. Venter greyish, with pale hairs. 

 Legs yellow, front coxæ grey at the very base, posterior coxæ grey, 

 yellow just at the apex; hind femora blackish at the apex; hind tibiæ 

 more or less blackish or brown, paler towards the base; tarsi black 

 or brownish black, the anterior with the base pale; the front tarsi 

 shorter than tibiæ and with the four last joints short and a little 

 broad. The legs have short, black hairs, coxæ pale-haired, the hairs 

 on the front coxæ long; posterior coxæ each with a black bristle, or 

 the bristle on the middle coxæ often pale; the front femora have a 

 row of postero-ventral bristles on the apical half, longest towards the 

 apex, front tibiæ with a very small postero-dorsal bristle near the 

 base, and short ciliated above; posterior femora with somewhat bristly 

 hairs below towards the apex on both sides, and with a preapical 

 bristle; middle tibiæ with three antero-dorsal and one postero-dorsal 

 bristle; hind tibiæ with some bristles above in two rows; the hind 

 tarsi are short-bearded on the posterior side of the third and fourth 

 joints. Wings brownish tinged; veins blackish. Squamulæ yellow, 

 with a yellowish fringe. Halteres yellow. 



Female. Epistoma broader than in the male, not narrowed down- 

 wards. Third antennal joint still shorter, distinctly broader than long. 



