DESCIUPTIUNS OF FMES-:— H AK|)Y. 



197 



but with a redilish tinge ia places; it contains black bristles, a few yellow 

 liaii-s, and a little yelhnv tomentum. On each side of the median line 

 there are thi'ee presutiiral bristles, three superalar, two postalar and four 

 intermediate. Tliere are two bristles on the scutellum. 



Abdomen black, with the apical margins of the segments, the sides, 

 and the whole of the venter, reddish yellow. On the dorsal suiface some 

 of the haiis are black, but, the majority appear to be yellowish, and thei-e 

 are two or three long lateral hairs on some of the basal segments. 



Male genitalia are black, with a pair of veiy simple upper forceps, 

 which ai^e a little separated, and which bend downwards at the af)e\. 

 The lamella does not pi-oject dorsal ly, but can be seen from the dorsal 

 side and from the rear; it is situated in the usual place, and lies horizon- 

 tally. The lower forceps contain a small apical projection at the 

 lower border. 



Legs yellow, but the intermediate coxae and all the tarsi are stained 

 with black. The anterior femora are without bristles. The intermediate 

 femora have on the anterior side two widely separated bristles representing 

 the upper row and three representing the lower ; on the i)Osterior side 

 there is a bristle placed about three-quarters of its length, and also one 

 subapical. The postei'ior femora have on the anterior side an upper row 

 of three widely separated biistles and a lower row of four; an extra 

 subapical bristle may also be present. The ventral row is represented by 

 a few bristles, which vary in position on the diffei'ent specimens. The 

 posterior side of the femoia contains a pair of subapical bristles, and 

 another bristle is placed almost dorsally at about seveu-eights its length. 

 The tibiae and tarsi also contain bristles. Most of the bristles are black. 



9 . The female is similar to the male ; the ovipositor is normal. 



Length. — Male 19 mm., female 18 mm. 



H(th. — Queensland : Cairns, January 1921, 2 males and 3 females 

 collected by Dr. J. F. Illingworth in the sugar-cane fields ; Claudie River. 



Ti/pes. — By the courtesy of Dr. Illiugvvorth the holotype and allotype 

 have been presented to the Australian Museum. Three paratypes are in 

 Dr. lUingworth's collection and two in the National Museum, Melbourne. 



Note. — It is reported that this species in the larval stage is pi-edaceous 

 upon sugar-cane grubs. 



Fig. 1. Asiliis illingworlhi , sp nov. The male genitalia seen laterally 



