Australian and Tasmaniaii Cryptocephalides. 455 



defined, and with irregular traces (even towards the base) of a linear 

 arrangement. Head with a feeble median impression. Antennae 

 passing apex of body, moderately stout, second joint about one-third 

 the length of third. Prothorax about twice as wide as long, oblique 

 impressions very feeble, margins rather wide and feebly crenulated. 

 Scutelluvi ridged along middle, apex truncate and not much narrower 

 than base, sides incurved. Elytra narrowest just beyond shoulders, 

 subhumeral lobes feeble. Intercoxal process of prosterimm bilobed, 

 both in front and behind. Three basal segments of abdomen straight 

 at apex, fifth feebly depressed in middle. 



Length 5^ mm. 



$ . Differs in being larger, the eyes smaller and more widely 

 separated ; the antennae thinner and shorter than the body and the 

 elytra with smaller punctures, having even less traces of a linear 

 arrangement. The antennae are of uniform coloiir and no parts 

 (except the junction of the prothorax with the scutelhun and the 

 elytra) are black. Fourth segment of abdomen distinct across 

 middle and very feebly encroached iipon by the fovea, the latter 

 with feeble lateral extensions. 



Length 7| mm. 



Hah. W. Australia : KarriJale {A. M. Lea). 



The elytra have a mottled appearance owing to the 

 punctures being darker than the general surface, the 

 darker portions also appear to be in feeble lines. Although 

 the hind apex of the prosternum is bilobed I have referred 

 this species to Cadmus, as it is evidently closely allied 

 to Cadmus scutatus, Chp. (in which the apex is rounded). 

 At first sight indeed it appears to belong to scutattts, but 

 the two species are readily distinguished by the shape 

 and punctures of the scutellum. 



Above are described seven species of Cadmus, and it 

 will be noticed that the prosternum is not exactly the 

 same in any two of them, although in all (except the last) 

 it is more or less rounded at the hind apex. In fact 

 apicirufus and iicrlatus are about as dissimilar species 

 as almost any other two (leaving out the tuberculate 

 species) in the subfamily. To found genera principally 

 on variations of the prosternum (as done by Sutfria,n and 

 Chapuis), or of the antennae (as by Saunders and Baly), 

 or whether the prothorax has entire or crenulated 

 margins, would necessitate almost as many genera as 

 there are species ; at least so far as the Australian species 

 are concerned. 



