the AsW'idse of Australasia. 157 



black or partly so. Macquart^s type of D. flavifacies lias tiie 

 abdomen and femora entirely black. 



Length of specimens, males from 17-23 mm., females 

 from 20-25 mm. 



Stenopogon fraternus from the description is no doubt the 

 same as S. elongatus. 



Stenopogon nicoteles, Walker. 



Type [S) from Swan River, West Australia [Dr. Richard- 

 son). 



A small black species allied to S. elongatus, but the 

 moustache is silvery wbite below, ■with black hairs above. 

 Face black, covered with silvery-white tomentum. Thorax 

 black, with grey tomentose stripes. Abdomen black, covered 

 with brownish tomentum. Legs black, the tibiae pale 

 reddish yellow, the posterior pair almost wholly blackish ; 

 bristles on legs pale yellow. Wings hyaline ; small trans- 

 verse vein below the middle of discal cell. 



Length 14^ mm. 



PsiLOZONA, gen. nov. 



Formed for two species from Queensland. 



Blue-black shining species. Fore and middle tibiae and 

 tarsi fringed with hairs, the tarsi broad. Wings with the 

 fourth and anal cells closed, the veins closing the fourth 

 posterior and discal cell almost parallel. Face shining, 

 broad, somew hat raised above oral opening ; the moustache 

 composed of strong bristles, not confined to the oral opening, 

 but not extending up the face ; the forehead broad, shining, 

 with hairs at sides. Head broader than it is high, excised 

 in centre. Fore tibiae have no curved spine. Antenna with 

 a distinct style. 



Psilozona albitarsis, sp. n. 



One male type and two females (type 1903) from Towns- 

 ville, Queensland (F. P. Dodd), 1904 and 1903. 



A blue-black species, with brownish ivings. The male with 

 white-haired fore tarsi and the base and apex of abdomen 

 white-haired. Female with abdomen bare, long, and pointed 

 at apex, the fore tibiae with black hairs. 



Length, S 17, ? 23 mm. 



S. Face black, shining, with Avhitish tomentum at the 



