BY THE REV. T. BLACKBURN. 1255 



basi vage sparsim punctulata, exceptis) sublaevigatis ; pygidio 

 leviter squamose punctulato, medio longitudinaliter sat anguste 

 Isevigato. [Long. 8^, lat. 4| lines. 



Near Eiicla, W. Austr. ; taken by Mrs. Graham. 



Neoheteronyx, gen.nov. ( Heteronyci affinis). 



Heteronyce difFert mento fortiter convexo, minus lato ; palpis 

 maxillaribus gracilibus elongatis ; maris tarsis anticis inter- 

 mediisque sat fortiter dilatatis. 



So many of the characters that have been relied upon as generic 

 in the Melolonthidce (e.g., the number of joints in the antennae) 

 have been found unreliable when fresh species have been dis- 

 covered, that I think it better to assume the possibility of a like 

 uncertainty of character in this genus, and to characterize it 

 merely by the salient points mentioned above. The following 

 will probably be found to be also generic characters, — although 

 some of them may perhaps eventually prove to be merely specific. 



AntennEe 8-jointed, club consisting of 3 joints, each of which is 

 (in both sexes) nearly as long as th'e preceding four joints 

 together. Labrum horizontal, altogether below the level of the 

 clypeus, but distinctly visible (owing to its forward projection) 

 if the clypeus be looked down upon from a point perpendicularly 

 above its surface. Eyes large, entire. Clypeus moderately 

 reflexed, its sides not at all convergent hindward immediately in 

 front of the eyes. Hind coxae on the external margin even 

 shorter than the 2nd ventral segment, — their external hind angle 

 quite rounded off. Front tibiae of male {i.e., of the sex with 

 dilated tarsi) bidentate externally, of female simple ; claws appen- 

 diculate, the basal piece strongly compressed, the apical piece as 

 long as the basal, and slender. The pygidium is exposed. 



N. LiviDUS, sp.nov. 



Oblongus; subglaber, pygidio, pedibus segmentisque ven- 

 tralibus pilis sparsim vestitis ; brunneo-lividus, capite prothorace 

 80 



