Australian and Tasmanian Cryptocephalides. 355 



Hab. Queensland ; N. S. Wales ; Victoria ; South 

 Australia. 



Cadmus scutatus, Chp. 



(Plate XXIV, fig. 107.) 



This species, of which only the female was known to 

 Chapuis, is very variable and is fairly common about the 

 Swan River; I have but one specimen (a female), however, 

 which agrees exactly with Chapuis' description. In the 

 other specimens the scutellum is entirely black, or black 

 with the apex reddish. 



In the ordinary female a line down the face, a median 

 prothoracic line (both rarely absent) and occasionally an 

 indistinct spot on each side are black ; on the elytra the 

 humeral calli are always darker than their surroundings, 

 and there are often more or less distinct traces of two 

 dark fasciae (one subbasal, the other median) ; the basal 

 joint of antennae is usually black above, the apical joint is 

 usually infuscate or black, sometimes the two apical joints 

 are black ; occasionally the entire antenn;e are pallid. 



The ordinary male has the two apical joints of the 

 antennae and most of the basal, the vertex and a line 

 down the face, a prothoracic cross, the humeral calli and 

 traces of two fascise (as in the female) and the greater 

 part of the metasternum black (one female under ex- 

 amination agrees in all respects with such markings). 

 The prothoracic cross is much as in the ordinary form of 

 crucicollis, but more sharply defined ; from erucicollis, how- 

 ever, the species may be distinguished by the very different 

 elytral sculpture. 



Cadmus histrionicus, Chp. 

 (Plate XXII, fig. 4.) 



The exact locality of his specimen (a female) was 

 unknown to Chapuis ; the species was subsequently re- 

 ferred by Baly to Prionophura. 



I have a pair taken in copula at Geraldton (Champion 

 Bay) in which the male agrees with Chapuis' description ; 

 two females from Birchip (Victoria) and one from South 

 Australia also agree with the description ; the Geraldton 

 female, however, differs in having only the two terminal 

 joints black. 



The black markings of the under-surface and the 

 elytral spots are subject to considerable variation, but the 



