6Q On the Asilidge of Australia. 



Rhahdotoitamus, formed by him for species of Neoitamus with 

 the femora striped or partly yellow. 



Ommatius distinctus, (J ? , sp. n. 



Male (type) in Brit. Mus. Coll. from Townsville, Queens- 

 land {F. P. Dodd), 1904, 284 ; another in Mr. Gibbons's 

 Coll. from Eidswold, Queensland ; another from Kuranda, 

 Queensland [F. P. Dodd), in Mr. Taylor's Coll. ; and a 

 female (type). 



A species distinguished in the male by the dilated wing 

 and by the brown spot on apex of wing, which is absent in 

 the female. Moustache black and white. Legs yellowish, 

 with black stripes. 



Length, c? 13-14, ? 13 mm. 



Male. — Face with a fairly large tubercle, not, however, very 

 prominent, covered with whitish tomentum. Moustache 

 composed of whitish long bristly hairs and two long black 

 bristles above ; in one male there are four of these. Beard 

 whitish. Antennae dull brown, the feathered arista twice as 

 long as the antennoe themselves. Hind part of head with 

 white bristles and white hairs below. Thorax blackish blue 

 with grey tomentum ; two prtesutural bristles, one supraalar 

 bristle, and one postalar bristle, nearly all white; the dorso- 

 central bristles chiefly white ; the dorsum almost bare of 

 pubescence. JScuiellum the same colouring, with two white 

 bristles. Abdomen blackish, with grey tomentum and some 

 grey hairs ; sides with longer grey hairs. Genitalia rather 

 stout and prominent, black. Legs yellowish red, with black 

 stripes on the upper sides of the fore and middle femora, the 

 hind pair with the apical half only, black above ; the hind 

 tibiae black at apex; the last four joints of all the tarsi 

 dusky ; the femora all incrassate, the middle pair with 

 noticeable black bristles, the hind pair with four or more 

 white ones, the hind and fore pairs with long fine white hairs 

 below ; the fore tibise with the same, and the others with 

 shorter white pubescence; the bristles on the legs almost 

 entirely black. Wings clear, the anteiior border very much 

 dilated in the middle, the veins coalescing and forming a 

 black thick border ; the brown spot is at the extreme apex, 

 reaching across the anterior branch of the third vein ; tlie 

 small transverse vein is this sid e of the middle of the discal 

 cell. 



Female seems identical, but the black bristles on moustache 

 are more numerous and those on the thorax are largely black, 

 those on the middle tibias white. Wings at apex are very 

 faintly grey. 



