Austo^alian and Tasmanian Cryptocephalides. 373 



specimen the pale elytral markings are not confined to the 

 base and apex, but are irregularly distributed over the disc 

 as well. 



A specimen from Tambourine (Queensland) in Mr; 

 midge's collection differs in having the outer parts (but 

 not the extreme margins) of both prothorax and elytra 

 darker (instead of paler) than the general colour, but I can 

 only regard it as a variety. 



Loxoplciirus crassicostat'us appears to have been founded 

 upon a variety of this species having the pectus black ; I 

 have one specimen from Sydney in which the greater part 

 of the metasternum is black, but in five others it is of 

 a reddish-brown, but very distinctly darker than the 

 abdomen. 



The costa3 of the elytra in this species are much more 

 pronounced in some specimens than in others both as 

 regards their colour and size. 



It seems to me quite probable that Zoxoplenrus impressi- 

 collis, Boh. (re-described by Suffrian) may be referable to 

 this species. 



Idiocephala subbrunnea, Saund. 



Mr. Saunders described the scutellum and " mesosternal 

 region " as black ; in two specimens from Kiama before 

 me the metasternum but not the mesosternum is black ; 

 in one the scutellum is almost entirely black, but in the 

 other it is black only at the base. 



This species is given in Masters' catalogue as a synonym 

 of Danvini, but I do not know on what authority ; I have 

 seen no specimen agreeing with the description of Darwini. 



Idiocephala bynoei, Saund. 



Cryptoce'phahis convexicollis, Chp. 



(Plates XXIII, XXV, XXVI, figs. 49, 50, 51, 52, 160, 187.) 



This is a fairly common species on young Eucalyptus 

 foliage in the coastal districts of Western Australia. In 

 the female the antennae are slightly shorter than the body, 

 in the male they are distinctly longer, the scutellum has a 

 large basal fovea; the shape of the postmedian fascia 

 varies very considerably, but never appears to reach the 

 margins ; it is sometimes broken up into spots ; in one 

 female the basal joint of the antennae is obscure red ; in a 

 male the second, third, and fourth, and the lower part of 



