Empididae. 113 



Male. Eyes contiguous; epistoma greyish black. Occiput grey, 

 With black hairs above, yellowish below. Labrum not twice as long 

 as the head is high, dark brown; palpi black with some blackish 

 hairs. Antennæ black, a little shorter than the head, the two basal 

 joints somewhat greyish, with short hairs. Thorax grey, with three 

 shghtly conspicuous, darker and shining stripes. The dorsocentral 

 bristles somewhat long, pluriserial in front, uniserial and longer be- 

 hind, acrostichal bristles biserial; all brownish, the stronger ones be- 

 hind more blackish. Further a humeral bristle, a posthumeral, three 

 notopleural, a supraalar and a postalar bristle, all black, but besides 

 the humeri and the sides of the disc are clothed with somewhat long 

 hairs which are almost fused with the dorsocentral bristles, Scutellum 

 with four black marginal bristles, the middle ones strong. Pleura 

 grey, metapleura with long, yellowish or whitish, bristly hairs. Ab- 

 domen black, shining, clothed with somewhat longish, yellowish hairs 

 which are longest at the sides in front; venter similarly coloured, 

 more sparingly haired. Exterior genitalia not large, the lower lamellæ 

 directed upwards, somewhat triangular, haired at the margin especially 

 at the apex; I could not see the upper lamellæ, they seem to be 

 small. Penis is reddish, thick and short, bent upwards but slightly 

 curved. Legs blackish brown, coxæ greyish pruinose; hind metatarsi 

 very slightly thickened. Front femora short-haired ; middle femora 

 with two rows of long, bristly hairs below on about the apical half, 

 and with shorter hairs on the anterior side; hind femora with some- 

 what short hairs below and long bristles on the anterior side; fi-ont 

 tibiæ with not long hairs on the dorsal side; middle tibiæ with 

 bristles on the dorsal and ventral side; hind tibiæ with short hairs 

 below and two rows of bristles on the dorsal side; there is a pubes- 

 cence below the front tibiæ and on the anterior side of the middle 

 tibiæ, but it is very inconspicuous; tarsi somewhat spinulous beneath, 

 and with short bristles at the apex of the joints; the middle meta- 

 tarsi with a long bristle at the apex, the hind metatarsi with some 

 bristles. The hairs and bristles are black or brown, the bristles 

 generally darkest. Wings somewhat slightly brownish tinged; veins 

 brown. Stigma slightly brownish. Halteres yellow. 



Female. Eyes separated, frons grey. Thorax with the bristles 

 somewhat shorter than in the male. Front tibiæ pennate above in 

 the apical half or two thirds, and the front metatarsi likewise pennate 

 above; the front femora not pennate above but only ciliated; posterior 

 legs compressed, the femora pennate on both sides, the tibiæ pennate 

 above in the whole length, below in about the basal half part; middle 

 tibiæ with short hairs and bristles below on the not pennate part, 



