BY REV. T. BLACKBURN. 227 



F. Basal joint of front tarsi of ^ 

 narrower than 3rd joint, 



(humeral callus black i badia, Blackb. 



FF. Basal joint of front tarsi of 



(J fully as wide as 3rd joint, 



(humeral callus not black) nigrovittata, Chp. 



EE. Form less short. Elytra less 



wide than long. 



F. Elytra more or less marked 



with deep black lines or 



Idotciies variabilis, Chp. (pars) 



FF. Elytra uniformily testaceous- 

 brown. 

 G. Size somewhat large (long. 



5 lines or thereabouts).. .. pachyta, Chp. 

 GG. Size decidedly small 



(long, less than 4 lines) incerta, Chp. 

 CC. Presternum not sulcate gracilipes, Blackb. 



P. PURPUREOVIRIDIS, Clk. 



I take P. Iris, Chp., to be simply a synonym of this species.. 

 I have seen onl}' the female. 



P. MORio, Fab. (P. /allax, Newm.). 



This is a variable species of which I have seen examples from 

 IST.S. Wales, Victoria, Tasmania and Kangaroo Island. Usually 

 it is entirel}' black. Varieties have the antennae more or less 

 (especially beneath near the base) pitchy or even rufescent; in 

 others the sides and even the disc of the prothorax are brownish- 

 red; in others the elj'tra are more or less streaked with the same 

 colour, and I have seen a single example (from Tasmania) in 

 which the elytra are entirely brownish-red, except that the 10 

 pseudo-stria3 are narrowly black. Its form is wide, with the sides 

 decidedly rounded, but it is not at all strongly convex. The 

 elytral puncturation is not far removed from being uniform in 

 respect of size, the punctures of the series (which run in scarcely 

 marked scratch-like striae, and are more or less confused, especially 

 those near the suture) being scarcely or but little larger than 

 those of the interstices; all the punctures are fine but well marked 



