344 NOTES ON AUSTRALIAN COLEOPTERA, 



setae (not only to beyond the middle but) to the end, and the basal 

 joint of the antennal funicle is certainly not so much longer 

 than the 2nd as " fere duplo." If Mr. Pascoe's measurement is 

 inclusive of the rostrum these specimens moreover are larger than 

 the size he mentions (IJ line) being quite 1§ line, inclusive of the 

 rostrum, but the rather peculiar arrangement of colours agrees so 

 well with the description of 0. nigricollis, and the generic cha- 

 racters are so identical that I hardly think the two can be different 

 species. 



The two above-mentioned specimens were sent to me folded 

 up in a piece of paper in company with three other specimens 

 which I cannot doubt ought to be considered as the same species ; 

 these latter however differ in having the whole of their upper 

 surface densely clothed with coarse scales of silky appearance 

 similar to those of the under surface (these scales on the upper 

 surface are everywhere concolorous or nearly so with the derm, 

 except that some whitish scales are condensed into three fairly 

 distinct vittse on the prothorax of which the lateral ones are 

 continued for a little distance on the elytra). The prothorax in 

 one of these three specimens is undoubtedly shorter and wider ; 

 especially in front, — than in the two others, — but I cannot discover 

 any other distinctive character. 



The following new species must I think be referred to Olancea 

 notwithstanding its differing from the specimens mentioned above 

 in the suture between the 1st and 2nd ventral segments being 

 almost straight. I cannot find in it any other distinction of 

 generic appearance. In characterising Olancea its author has not 

 described this ventral suture, or the proportions of the ventral 

 segments or the prosternum or the claws ; — in what I regard as 

 0. nigricollis the 1st ventral suture is arched, the 2nd ventral 

 segment is scarcely longer than the following two together, the 

 prosternum in front of the front coxse is shorter than in most 

 of the allied genera^ and the claws are divergent. As men- 

 tioned by Mr. Pascoe the intermediate ventral sutures 

 are arched laterally, the mesosternum is exceptionally narrow 

 between the intermediate coxse, the eyes are finely granulated, the 



