BY REV. T. BLACKBURX. 243 



by the considerably less strongly dilated basal joints of the 

 anterior tarsi in the male as well as by the less regularity of the 

 black lines on the elytra. Regarding it as distinct from P. 

 triinaculata, Chp., it is also distinguishable from P. intacta by the 

 presence of black blotches on the elytral interstices. 



P. ixsiGNiTA, Newm. 



Apart from the markings of its elytra, this species is difficult 

 to separate from P. interlitu, Newm., but I find that the discal 

 puncturation of its prothorax is certainly -'finer. Nevertheless 

 there is a tendency in both to variation in the prothoracic 

 punctures which foi'bids much reliance on this character. In P. 

 iasignita the 1st, 2nd, 6th, 7th and 10th elytral interstices are 

 almost entirely of a smokj^-brown colour, and the other interstices 

 (except the 4th) are similarly coloured about the base or apex. 

 There are no black blotches on the interstices in any example I 

 have seen except an evidently abnormal one which has them on 

 one elytron only. I am disposed to think the species a good one. 



P. TRIMACULATA, Chp. 



Closely allied to the preceding two, but differing in all the elytral 



interstices being of uniform colour. Hence, in pattern it resembles 



P. intacta, having no elytral markings except the black striae, but 



differs from it in the black lines of the strise not being uniform 



{i.e., some of them wider and blacker than others, or in one part 



than another). 



P. NUCEA, Er. 



A species easily recognisable (among those of the present sub- 

 group having the seriate punctures of the elytra strongly defined) 

 by its having the under surface and legs black in combination 

 with strong prothoracic fovepe and the basal joints of the anterior 

 tarsi only moderately dilated in the male. It is of a full dark 

 brown colour on the upper sui-face with the base of the head, 

 some marks on the prothorax and the elytral striie blackish or 

 piceous. It is not very variable except in a tendency for all the 

 dark markings (which are never very strongly defined) except 



