392 



Orthorrhapha brachycera. 



Wied.) 1823. Dipt. Suec. Dol. 22,34. — 1843. Zett. Dipt. Scaud. II, 616, 

 103, et 1855. XII, 4640. 103. 



Male. Vertex and frons brownish yellow or more grey pruinose. 

 Epistoma narrow, whitish. Palpi yellow. Occiput greenish, somewhat 



Fig. 124. Antenna of X ornaf MS c?. 115. 



grey pruinose; postocular bristles yellow. The vertical bristles yellow. 

 Antennæ with the two basal joints yellow, the third brownish. Thorax 

 metallic green or æneous, greyish pruinose, and slightly or not shining, 

 generally with a narrow, more shining middle stripe; the bristles 

 yellow. Scutellum green or bluish green, postscutellum greenish grey. 

 Pleura slightly green or æneous, grey pruinose; the hypopleura with 

 the metaepimera more or less yellow; propleura with a whitish pro- 

 thoracic bristle. Abdomen olive green or æneous above, more or 

 less translueent yellow, especially at the sides ; it is clothed with brown 

 hairs, and has distinct hindmarginal bristles, long on the first segment. 

 Venter yellow, with pale hairs. Hypopygium yellow. Legs yellow, 

 tarsi more or less darkened towards the end, the last joint black or 

 blackish. The legs have short, blackish or brownish hairs, coxæ pale- 



Fig. 125. Wing of X. ornatus d". 



haired; the front coxæ have bristly hairs at the apex, the posterior 

 coxæ each a yellow bristle; for the rest the legs short-haired, femora 

 with slightly longer hairs below; the front tibiæ and especially the 

 metatarsi short-ciliated below; middle tibiæ with two antero-dorsal 

 and one postero-dorsal bristle; hind tibiæ with a few bristles above. 



