DIPTERA. 225 
clothed with tawny hairs; thighs brassy; tips of the feet pitchy ; claws 
tawny with black tips; foot-cushions tawny ; hind-feet widened, somewhat 
pitchy towards the base: wings gray, slightly brown beneath the fore border ; 
wing-ribs tawny ; veins black, tawny at the base; poisers tawny. Length 
of the body 4 lines; of the wings 7 lines. 
Cape. 
EvuMERus privernus, Mas. 
Aineus, capite scutello thoracis lateribus pectorisque fasciis duabus flavis, 
thorace subvittato, abdomine cyaneo-nigro vitta interrupta fulva 
maculisque fulvis et ferrugineis ornato, antennis fulvis, pedibus flavis, 
femoribus posticis apice nigris, tibiis posticis fusco bifasciatis, tarsis 
posticis piceis, alis limpidis. 
Head bright pale yellow ; hind part and underside black, tinged with 
hoary, clothed with white hairs: eyes bright red, coppery above, where the 
facets are larger than those elsewhere: feelers bright tawny; sixth joint 
black, tawny at the base: chest and breast brassy : chest indistinctly striped, 
ats sides and the scutcheon yellow ; a short yellow band on each side of the 
breast: abdomen bluish black, yellow at the base, slightly spindle-shaped, 
much longer but not broader than the chest, adorned with an interrupted 
tawny stripe and on each side with three tawny triangular spots; three in- 
distinct ferruginous marks on each of the third and fourth segments : legs yel- 
low ; hind-thighs stout, black towards the tips; hind-shanks curved; with 
iwo indistinct brown bands ; hind-feet pitchy : wings colourless ; wing-ribs 
tawny; veins black, tawny at the base; poisers yellow. Length of the 
body 3 lines; of the wings 6 lines. 
United States. 
EvMERvs TRANSIENS, Fem. 
Niger, thoracis lateribus scutello pectore abdomineque ferrugineis, antennis 
nigris, pedibus ferrugineis, femoribus nigris, tibiis nigro cinetis, alis 
cinereis fusco nebulosis. 
Black ; head thickly clothed in front with tawny hairs: eyes red: 
chest and breast clothed with tawny hairs: scutcheon, breast, and sides of 
the chest ferruginous ; abdomen ferruginous, obconica), much longer than 
