56 Orthorrhapha brachycera. 



hairs, and a black prothoracic bristle. Abdomen metallic green, gener- 

 ally with more or less distinct copper-coloured reflexes, especially at 

 the hind margin of the segments, thus forming darker incisures ; it 

 is finely greyish pruinose, especially downwards, Abdomen clothed 

 with short, black hairs, the hind margins of the segments have black 

 bristles above, increasing in length towards the apex, those on the 

 first segment not long, longest at the sides. Venter grey with pale 

 hairs. Hypopygium greenish black, finely greyish pruinose, shining 

 towards the apex ; the eighth segment grey pruinose, with black hairs, 

 the anterior of which are somewhat long ; the hypopygium constructed 

 about as in latipennis, the yellow posterior ventral lobes have a little 

 style at the apex; the inner lamellæ almost as long as the outer, 

 curved downwards, the median pointed, the lateral dilated at the 

 apex; the outer lamellæ white, oval but a little pointed, the margin 

 at the apex black, serrated, and with inwards curved, black hairs; 

 on the dorsal margin, somewhat near the apex, there are two stronger 

 teeth with about four hairs, and from these and to the apical point 

 the margin is without hairs. Legs yellow, front coxæ somewhat grey 

 at the base, silvery pruinose on the anterior side; posterior coxæ 

 grey; anterior tarsi black except the basal part of metatarsus; hind 

 tibiæ more or less blackish, especially towards the tip, and hind tarsi 

 black. Anterior coxæ with black bristles on the front side towards 

 the apex, middle coxæ with a bristle on the outer side, and hind 

 coxæ likewise, but the latter bristle small. Legs otherwise with short, 

 blackish, below the femora pale hairs; the hairs on the dorsal side 

 of the hind femora somewhat long and erect. Posterior femora with 

 one preapical bristle; front tibiæ with dorsal bristles, a strong ventral 

 bristle below the middle, and a smaller near the base on the postero- 

 ventral side; middle tibiæ with about three antero-dorsal and two 

 dorsal bristles, and with one antero-ventral bristle in the middle; hind 

 tibiæ with a dorsal and antero-dorsal row, and with one ventral 

 bristle, and besides densely haired on the apical half of the posterior 

 side; hind metatarsus with two bristles above, and some on the 

 anterior side; the tibiæ have apical bristles. Wings hyaline, at the 

 apex of the short subcostal vein a small, black swelling; discai vein 

 bent rectangularly, the lower angle with a small veinlet, the last part 

 parallel with the cubital vein; postical vein thin at the apex and 

 curved. Squamulæ yellow, with a yellow fan. Balteres yellow. 



Female. Epistoma a little broader than in the male, reaching to 

 the lower margin of the eyes. Antennæ slightly shorter than in the 

 male. Legs with hind tibiæ and base of hind metatarsi yellow; hind 

 femora without longer hairs above, and hind tibiæ without dense 



