516 REVISION OF THE AUSTRALIAN SPECIES OF BOLBOCERAS, 



B. NiTiDicEPS, sp.nov. 



Mas(?). Breve; subrotundatum; sat nitidum; supra glabrum; 

 subtus sat pilosum; testaceo-brunneum, capite pronotoque rufe- 

 scentibus; mandibulo sinistro (superne vise) extus vix sinuate; 

 capite fere ut B. mandihnlaris, Blackb., sed toto supra nitidissimo 

 sparsissime (in clypeo sat grosse, in ceteris partibus subtilius) 

 punctulato, eminentia f rontali antrorsum arcuata, oculis perspicue 

 subtiliter asperis; prothorace fortiter transverse, supra sequali 

 (foveis sublateralibus exceptis), sparsim acervatim punctulato; 

 scutello fere Isevi; elytris subtilius 15-punctulato-striatis, striis 

 14 15^ que baud inter se cenfluentibus (9^^ antice fortiter abbre- 

 viata), interstitiis sat planis; femeribus pesticis sparsim punctu- 

 latis; tibiis ut B. mandibularis, Blackb. Long. 3J, lat. 2J lin. 



The unique type of this species stands alone among the species 

 known to me of the Third Group in its frontal elevation being an 

 arched carina with its convexity en the front side. The impor- 

 tance of this character is discounted, however, by the fact that 

 in the few species of which I have seen numerous examples, the 

 frontal elevation is more or less variable, being in some examples 

 straight and in others arched, with the convexity of the arch 

 hindward. But, that character being disregarded, the species is 

 still a very distinct one by virtue of its pronetum evenly convex 

 (apart from the sublateral fovese, which are present in all the Aus- 

 tralian Bolbocerata), and its head notably more nitid and mere 

 sparsely punctulate than that of any other of the species (of the 

 group) in which the 14th and 15th elytral striae are not confluent 

 in frent. The hind femera bear puncturatien differing from that 

 of the preceding four species in being very much less close, especi- 

 ally immediately in frent of the series of setiferous punctures. 

 Another distinctive feature consists in the extreme shortness of 

 that portien ef the frental margin which is in frent of the frontal 

 wings, it being scarcel}^ one-third of the length of the frent out- 

 line ef the frontal wings, whereas in the preceding 4 species it is 

 half the length of that outline. 



N. Queensland (sent by the late Mr. E. Cowley). 



