BY REV. T. BLACKBURN. 493 



FF. 14th and 15th elytral striae merge 



in front part into a single stria. 



G. No longitudinal sulcus on pro- 



notum (elytral interstices 



strongly convex) nitens, Blackh. 



GG. A well defined longitudinal 

 sulcus on hind part of pro- 

 notum (elytral interstices 

 notably less convex). 

 H. Eyes not perceptibly faceted, 



I. Pronotum not, or scarcely, 



refuse in front part rotundatum, Hope 



II. Pronotum strongly and 



triangularly retuse in 



front part impressicolle, ^ZacAZ^. 



HH. Eyes very distinctly faceted. 



I. Surface of pronotum, ex- 



cept median longitudinal 

 line, scarcely punctured 

 in middle of front part. 

 J. Clypeal elevation scarcely 



angular in middle Yuheseens, Hope 



JJ. Clypeal elevation strong- 

 ly angular in middle. . . globulif orme, 3Iacl. 



II. Surface of pronotum 



thickly and strongly 

 punctulate all across 



front part ohscnrins, Blackb. 



DD. Hind extremities of frontal margins 



connected by a transverse carina carinatum, Blackb. 



AA. Elytra with only 1 1 strife. 



B. Front tibiie with only 5 external teeth simpliciceps, Blackb. 



BB. Front tibiae with 6 external teeth plan i cep s, J/acZ. 



B. ANGULICORNE, Macl. 



I have two specimens sent to me from N. Queensland as male 

 and female of the same Bolboceras (taken at the same place) of 

 which the male is this species, and I have every reason to 

 believe that the female is conspecific; only the male, however, of 

 angulicorne has been described, and there is very little beyond 

 circumstances of capture by which to apportion males and females 



