154 Arfhur M. Lea : 



Of the species known to me comes closest to pilosus, but 

 differs in being smaller, antennae shorter, with terminal joint 

 smaller, clothing shorter, whitish, and on the elytra more con- 

 spicuously linear in arrangement. In general appearance it is 

 also rather closer to geminatus, but the clothing is longer, the 

 head is different, and the discal stria (which is strongly curved) 

 is double only on the basal half. The head is without tubercles 

 between the eyes, and from most directions appears to be 

 without a channel, but at the apex the channel is suddenly 

 deepened, so that, from some directions, there appear to be two 

 conspicuous inter-antennal tubercles. 



Pselaijhus tuhercuUfrons, Raffr. 



Onh' the female of this species was described by Raffray. 

 The male differs in having the metasternum very shallowly and 

 widely impi'essed, and the impression continued on to the large 

 segment of abdomen. The Western Australian specimens 

 before me, from Bridgetown, were from nests of DoUchoderes 

 scabaridus. 



Tasmanian specimens, obtained from tussocks, have the inter- 

 ocular tubercles not quite so conspicuous, but in all other 

 respects agree well with the Bridgetown ones. 



PselapJnis geminatus, Westw. 



Described originally as from an ants" nest. The only speci- 

 men I have seen is in Mr. Goudie's collection, and was taken by 

 him at Sea Lake (Victoria) in a nest of Ponera lutea. 



Pselaphus antipodum, Westw. 



Described originally as from an ants' nest. The species may 

 often be taken in abundance during floods in X.S. Wales and 

 Victoria. 



CitrculioneUus riparius, Raffr. 



Taken by Mr. Cox in nests of Ectatomma metallinun and of 

 Iridoynyrmex rufon iger. 



