BY REV. T. BLACKBURN. 521 



ut carina brevissima transversa elevata ; prothorace fortiter 

 transverse, supra sparsim acervatim punctulato, antice retuso 

 (parte antica pernitida — a fronte visa — triangulari), postice 

 longitiidinaliter profunde sulcato; scutello subtilius punctulato; 

 elytris subtilius 15-punctulato-striatis, striis 14^ 15''^que antice 

 inter se confluentibus (9^ antice fortiter abbreviata), interstitiis 

 planis; femoribus posticis subtus (parte antica summa excepta) 

 sparsissime punctulatis; tibiis ut B. ynandihularis, Blackb. Long. 

 4, lat. 2| lin. 



The conspicuous characters of this species are the very sparse 

 puncturation of its frons, the extremely short transverse carina 

 which forms its frontal elevation, and the abruptly retuse front 

 of its pronotum, the retuse area (looked at from in front) pre- 

 senting a triangular face. These characters in combination 

 readily distinguish it from all the other species of the Group 

 having the 14th and 15th elytral stride coalescent in front. No 

 part of the frons is so closely punctulate as the part of the head 

 behind the frontal elevation. 



N.W. Australia (Roebuck Bay). 



B. GLOBULIFORME, Macl. 



I am not very confident in my identification of this species. 

 The only characters mentioned by its author that seem likely to 

 be specific are the prothorax being "almost free from punctures, 

 a few distant and very fine ones being scattered over it," and 

 the prothorax of the male being " slightly retuse in front." I 

 have a number of Bolbocerata from localities neighbouring to 

 Port Denison (the habitat cited) which seem likely to be glohu- 

 l'} for me, but although their pronotum is less closely punctulate 

 than is usual in the Third Group, it is not so nearly punctureless 

 as Macleay's description indicates. I note that Macleay regards 

 the specimens with the frons less concave as males, which is not 

 my opinion of them, but I admit that the matter is open to doubt. 

 The species before me belongs to the aggregate having the 14th 

 and 15th elytral strise confluent in front, and its eyes are visibly 

 (though feebly) faceted. Its elytral interstices are feebly 

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