1957] 
Hull — Asilidae 
91 
erect pile. Tibial bristles rather strong ; no spine on 
anterior tibial apex. Claws sharp, pulvilli and empodium 
long. Wings : The marginal cell is widely open, the second 
vein not recurrent; first posterior cell closed and stalked 
and the fourth posterior cell also; anal cell closed and 
stalked. Alula small; ambient vein complete. Abdomen : 
The abdomen is comparatively robust, the first 2 tergites 
are at least as wide as the mesonotum ; 6 tergites in males. 
The pile is dense, appressed and setate and there are 6 
or 7 slender bristles on the sides of the first tergite, a 
patch of 6 to 8 or fewer on the sides of the second tergite 
and 1 or 2, or none on the third tergite and none beyond. 
Male terminalia partly rotate or wholly rotate. Epandrium 
undivided, uncleft, with short, blunt, posterolateral process ; 
surstylus short, smaller, broad at base; hypandrium a 
mere lip-like extension. 
Broticosia new genus 
Type of genus: Broticosia rapax new species. 
Small to medium size flies with laterally compressed 
abdomen and subcircular head and very narrow face. 
Bristly pile of face concentrated in a mane. Hypandrium 
drawn out as long, arched process which is curved down- 
ward. Length 13 mm. 
Head : The face is very narrow and head nearly circular. 
The pile of the face is abundant and massed into a rather 
dense, vertical row of very long, slender bristles. Antenna 
elongate; the first 2 segments combined are about as long 
as the third segment, the microsegment excluded; this 
microsegment is long, held at a slight angle, is a little 
less than one-third as long as the third segment and is 
spoon-shaped at apex with long, dorsal, spinous bristle. 
Palpus of 2 segments. Thorax : The pile of the mesonotum 
consists of numerous, very long, fine bristles down the 
middle of the mesonotum with shorter bristles laterally; 
acrostical elements differentiated; dorsocentral bristles be- 
come extremely long and numerous opposite the wing. 
Scutellum with some stiff, bristly hairs projecting back- 
ward from margin. Legs : All femora and tibiae slender. 
