49G ^Ir. G. J. Arrow on 



attenuate ; scutello parvo, subtiliter punctate ; elytris grosse striato- 

 punctatis, punctis tuberculiferis, interstitiis subtilissime punctatis ; 

 pygidio rugoso, cum propygidio, pectore segmentorumque abdomina- 

 lium marginibus fulvo-hirtis ; pedibus validibus, intermediorum et 

 posticorum unguibus divisis. 



^ unguibus exterioribus pedum 4 anticorum lobis internis 

 cras?ati?. Lrmg. 14 m.m. 



Hah. N.W. Borneo, Penang. 



This species shows a rather deceptive resemblance in 

 size, form and colour to certain males of P. discolm', 

 Westw., with which, of course, it has no near relationship. 

 It is easily distinguished by its coarser puncturation, 

 smaller scutellum and hairy pygidium. 



A remarkable species from Japan having no close affin- 

 ity with any other at present known and also dimorphic 

 may be mentioned here. It has been recently described by 

 Herr Nonfried as Parastasia Ferrieri and is at once 

 distinguished by the short pubescence with which its 

 entire surface is clothed. The sexes of this insect, of 

 which I have been enabled to examine a considerable 

 series in M. Oberthiir's fine collection, show no difference 

 in outward form, but are immediately recognisable by the 

 pygidium, which in the male is red and in the female 

 black. The structure of the claws also differs, that of the 

 latter sex being quite peculiar to this species. The outer 

 claw upon each of the four posterior tarsi is armed with a 

 small tooth at its base in the female, while in the male it 

 is simply divided at the tip. These interesting sexual 

 characteristics were not noticed by Herr Nonfried, nor 

 was another striking peculiarity of the species, namely the 

 form of the hind femora. These are very broad and 

 their upper edge instead of being gently curved is pro- 

 duced into a sharp angle. 



I drew up a Latin diagnosis of this species before I had 

 access to Herr Nonfried's description, and as the latter is 

 in German and contains no reference to those characters 

 by which the affinities of the insect may be determined 

 nor to the sexual differences, I shall allow this to remain. 



Parastasia Ferrieri, Nonf., Berl. Ent. Zeit., 1895, p. 289. 



Fusco-niger, undique fulvo-pubescens, protliorace (margine ex- 

 cepto) maculaque magna utriusque elytri fulvo-rufis ; capite equaliter 

 rugoso, clypei margine fere recto, quadridentato ; prothorace punc- 

 tato, valde transverse, antice medio parum profunde excavate, 



