1254 NOTES ON AUSTRALIAN COLEOPTERA, 



as being C. armatus, Shp. On examination, however, its horn 

 (which is quite like that of C. armatus) is seen to be on the head 

 (not on the front of the prothorax), the lateral dilatation of the 

 head in front of each eye to be much larger (giving the head 

 some resemblance to the shape of a trilobed leaf), the flabellum of 

 the antennae to be wider, the mentum to be much narrower, and 

 the apical joint of all the palpi to be much stouter. 



From Neocavonus the present genus differs inter alia in the 

 shape of its mentum, in the apical joint of its maxillary palpi not 

 truncate (or scarcely so), in the absence of a prothoracic and 

 presence of a frontal horn, and in the much larger flabellum of its 

 antennae. 



From Aneurystypus it differs inter alia in the proportionally 

 much wider mentum, in the much shorter and stouter apical joint 

 of the labial palpi, in the much smaller flabellum of the antennae, 

 and in the absence of a prothoracic and presence of a frontal horn. 



From Corynophyllus it has been distinguished in the Latin diag- 

 nosis (above). 



From Teinogenys (which I do not think that T have seen) it 

 would seem to diff'er inter alia in the mentum not being " com- 

 pressed." 



From all the above genera the extremely strong dilatation of 

 the head on either side in front of the eyes would seem a sufii- 

 cient distinction. 



Phylliocephala nigro-hirta, sp.nov. 



^. — Nitida ; nigerrima ; supra glabra, corpore subtus pedi- 

 busque longe sat dense nigro-hirtis ; clypeo antice rotundato, 

 marginibus fortiter reflexis ; capite cornu valido, recurvo, apice 

 sat acuto, antennarum flabello vix breviori, instructo ; prothorace 

 quam longiori ])lus dimidia parte latiori, a margine antico fere ad 

 basin profunde excavato, sparsim subtilius punctulato, partis 

 excavatre lateribus angulatim elevatis fundo transversim strigato ; 

 scutello antice punctulato ; elytris (stria suturali punctulata, et 



