some new AaWldte from JVestern Australia. 525 



Lffjs. — Distinctly bandefl in appeanuice, femur being very 

 (lark brown ur black, first tliinl of all tibiie bein<:j liglit yellow 

 and distal two-tliiitls black. The proximal part of first 

 segment of tarsi is liglit yellow and the rest l)lack. 



Femora, tibia?, and tarsi all covered regularly with very 

 sliort black bristles. In addition to this general covering, 

 there are numerous stout bristles on the tibia; and tarsi and 

 one or two on hind femora. 



Wiiiffs (text-fig. 2, C). — Faintly tinged brown. 



Halteres. — Yellow-brown. 



This is the first record of the genus Neosaropogon from the 

 State of Western Australia, and far away from the tropical 

 region of the Northern Territory, whence iV^. snlinator is 

 recorded. The most conspicuous difference from N. saUnator 

 is the colour of the abdomen anteriorly and the colour of the 

 legs. 



Genital armature (text-fig. -4). — It is unfortunate that no 

 male specimen has been discovered, as the tip of the abdomen 

 of the female is quite interesting in structure and different 

 from the otiier Asilids we have examined except Questopogon 

 olarkii. The structure is sufficiently well illustrated in the 

 figure, which is a ventral view. The stout styles, six in 

 number on each side, are very conspicuous, and they do not 

 occur in other Dasypogoninre we have examined except 

 Questopogon. It is impossible, however, to use th.is structure 

 at present for purposes of classification, for naturally it has 

 not been possible to examine the posterior end of the abdomen 

 minutely (usually it necessitates removing and mounting the 

 g:enital appendages) except in a few of our own specimens. 

 We cannot even say that it is characteristic of the genus 

 Neosaropogon. Most likely, however, it is characteristic of a 

 subgroup of genera to which both N eosaropogon and Questo- 

 jiogon belong. 



Questopogon chrkii, gen. et sp. n. (PI. XV. fig. 3.) 



Two specimens, females, of some size (27 mm.), from Cun- 

 derdin, Western Australia, belong to the Dasypogoninae, but 

 it is apparently impossible to place them in any of the genera 

 already described, although they come near to Saropogon. 

 The largest of the species from Australia is given as 15 mm. 

 llicardo has instituted the genus NeosaropogoTi for certain 

 species distinguished from Saropogon by their larger size, 

 but other featuios — the absence of any visible style to the 

 third joint of the antenna; and the character of the moustache, 



