1957] 
Hull — Asilidae 
93 
hairs and equally long or longer dorsocentral hairs and 
6 of the posterior, dorsocentral elements somewhat more 
stout but not conspicuous. There are 2 or 3 stout, long, 
notopleural bristles, 1 post supraalar, 2 on the post callus. 
The scutellar margin, however, bears only 3 or 4 pairs 
of long, slender, yellow, bristly hairs and a few white 
hairs on the disc. Legs : The legs are bright orange brown. 
The basal half of the hind femora, the extreme base of 
the other femora, apices of hind tibia, apex of hind 
basitarsus and the last 4 segments of all of the tarsi black. 
Bristles reddish orange. Most of the pile is composed of 
fine, black, appressed setae but the hind femur bears a 
ventral fringe of long, scattered, white hairs, others dors- 
ally and medially on the basal half and the middle femur 
has a ventral and dorsal row of whitish pile, the ventral 
hairs long. Claws slender, black, reddish at the base ; 
pulvilli long and rather slender. Wings: The wings are 
pale brownish hyaline with reddish brown villi densely 
on the apical and posterior margins widely. Abdomen: 
The abdomen is everywhere polished black with a strong, 
greenish, brassy reflection. The pile is scanty, fine and 
white for the most part, short, subappressed dorsally, be- 
coming long and conspicuous though scanty on the sides 
of the tergites and sternites. Seventh and eighth tergites, 
especially the eighth, with black setae. On the whole 
posterior margin of the laterally compressed eighth tergite 
there is a conspicuous fringe of long, regularly spaced, 
slender, black bristles, the elements rather widely separated. 
The whole abdomen seems to be somewhat compressed 
laterally but this may not be natural. 
Type: Female; National Park, Darling Range, West 
Australia, October 18, 1931, Harvard Australian Expedi- 
tion. Collected by P. J. Darlington. Type in the Museum 
of Comparative Zoology. 
Aplestobroma new species 
Type of genus: Aplestobroma avida new species. 
Medium size flies, characterized by cylindroid, narrow 
abdomen and subcircular, narrow face. Male with long, 
dorsally placed, protuberant, curved hypandrium. Female 
