Asilidse of Australia. 05 



the seventh segment, is very long, almost the length of the 

 last four segments. 



A male and female from Tasmania seem to belong to this 

 species ; the male has some white hairs in the moustache. 



Neoitamus australis, <$ $ , sp. n. 



Type (male) and another, type (female) and another ; 

 all from Sydney (C. Gibbons). 



A small species, distinguished from Neoitamus varius, 

 Wlk., by the white bristles on thorax and by its lighter 

 colouring. Legs reddish yellow, with black streaks. Mou- 

 stache pale yellow. 



Length, '<$ 10-11, $ 14 mm. 



Male. — Face covered with silky yellow tomentum, tubercle 

 very small. Moustache composed of long bristle-like yellow 

 hairs. Antennce blackish brown. Postocular bristles pale. 

 Thorax covered with yellowish-grey tomentum, the stripes 

 dark blackish brown, the median one broad, not divided, but 

 becoming narrower posteriorly. The prassutural bristles two 

 in number (one black, one white), one supraalar, one postalar, 

 both long and white in colour ; dorso-central bristles weak, 

 white, four in number; pubescence on dorsum scanty, black ; 

 a median line of hairs from the anterior border extends 

 beyond the suture composed of short but distinct hairs. 

 Scutellum with two long white bristles on its margin. 

 Abdomen covered with grey tomentum and with a large black 

 spot on each segment; a long yellowish bristle at the side 

 of most of the segments, three longer ones between the fourth 

 and the fifth segments, and yellow hairs intermixed ; pubes- 

 cence on dorsum short, white. Genitalia large, black, with 

 black pubescence. Legs long, slender, the coxas black, the 

 femora reddish yellow on their basal halves with the exception 

 of the hind pair, which are black at their extreme base ; only 

 the middle and posterior ones have black bristles, and then 

 only few in number ; all have some soft hairs below ; tibise 

 reddish yellow, black at their apices, the tarsi on their ant - 

 rior joints reddish, then black; tibise and tarsi with black 

 bristles. Wings grey, the small transverse vein beyond the 

 middle of the discal cell. 



Female similar. Ovipositor includes only the seventh 

 segment, as in Neoitamus varius, which does not include the 

 sixth as stated by me in the Ann. & Mag. Nat. Hist. (8) xi. 

 p. 432(1913), and in both species the seventh is only include d 

 in a modified degree. 



This species will belong to the late Mr. White's subgenus 

 Ann. & Mag. S. Hist. Ser. 9. Vol. i. 5 



