(38 Orthorrhapha brachycera. 



stripes, but very indistinctly ; when seen quite from in front thorax 

 is greyish, especially the two stripes and a space in front of scutellum. 

 Tiie dorsocentral bristles somewhat long, longest behind, the acrosti- 

 chal bristles short, all black and uniserial. Further a humeral bristle, 

 a posthumeral, two or three notopleural, a supraalar and a postalar 

 bristle, besides there is a small anterior supraalar bristle, but other- 

 wise no hairs; the bristles are all black. Scutellum brownish grey, 

 with four black marginal bristles. Pleura grey, somewhat yellowlsh, 

 metapleura with black hairs. Abdomen relatively long and slender, 

 velvet black, above sometimes somewhat brow^nish, down the sides it 

 becomes reddish or yellowish, and the venter is more or less pale 

 yellowish, palest at the base; it is clothed with erect, brownish hairs 

 which are somewhat longish at the sides, longest in front; the hairs 

 at the hind margins of the segments very slightly stronger than the 

 others; venter somewhat short-haired. Exterior genitalia small and 

 inconspicuous, the lower lamellæ seem to be somewhat blade-shaped, 

 the upper styliform; they are short-haired. Penis is a short, thick, 

 upwards curved thread, not protruding. Legs long and slender, yel- 

 low, also the coxæ; tarsi brown and the very apex of tibiæ also 

 slightly darkened. Femora short-haired, the posterior femora very 

 slightly longer haired below; just at the apex of the femora a couple 

 of stronger, bristly hairs; tibiæ short-haired, front tibiæ very densely 

 haired with line and a little longish hairs on the ventral side; posterior 

 tibiæ haired in the same way with less fine, shorter hairs ; front tibiæ 

 with a few thin bristles dorsally, middle tibiæ with some bristles on 

 the various sides, hind tibiæ with two dorsal rows of a little stronger 

 bristles. Tarsi short-haired, most densely beneath, on the front tarsi 

 the hairs below very fine as on the tibiæ; the posterior tarsi slightly 

 spinulous. All bristles black or brownish black, the hairs more 

 brownish to paler brown. The ordinary clothing of the legs not 

 sparse and somewhat conspicuous on account of its darker colour. 

 Wings brownish tinged, somewhat iridescent; veins darker or paler 

 brown, anal vein distinct, slightly thinner at the apex, reaching the 

 margin. Stigma brownish, little conspicuous, but large, filling the 

 whole apical part of the subcostal cell. Halteres brownish yellow. 



Female. Eyes separated, but the frons narrow, slightly widened 

 downwards, grey. Thorax grey, the same two stripes as in the male 

 slightly visible. Abdomen more or less yellowish, darker above. 

 Thorax and abdomen haired as in the male, and likewise the legs. 

 Wings hyaline, somewhat yellowish tinged; stigma faint. Halteres 

 yellow. 



Length 4,5 to about 5,5 mm. 



