152 



CC. Elytral punctures fine and close 

 (12 from suture not nearly reach- 

 ing middle) 



BB. Joint 3 of antennae much shortei 

 than joint 2. 

 C. Middle lobe scarcely more than half 



a lateral lobe 



CC. Middle lobe much more than halt 

 a lateral lobe. 

 D. Hind angles of prothorax (viewed 

 from above) well defined, rect- 

 angular 



DD. Hind angles of prothorax 

 (viewed from above) quite 

 rounded off. 

 E. Elytra non-striate outside sub- 



sutural stria 



EE. Each elytron with 5 or 6 quite 



distinct striae 



A A. Hind coxae notably shorter than meta- 



sternum or (if less notably shorter) 



leaving 1st ventral segment widely 



exposed. 



B. Middle of ventral segments opaque, 



with close fine asperity 



BB. Ventral segments not as B. 

 <l) C. Front face of labrum quite strongly 

 and closely rugulose, or even 

 granulate. 

 D. Elytral punctures not extremely 

 close (20 from suture reach at 

 least to middle). 

 E. Prothorax fully twice as wide 



as long 



EE. Prothorax distinctly less than 

 twice as wide as long. 

 F. Elytral punctures close (15 

 from suture not passing 

 middle). 

 G. Elytra transversely thick- 

 ened close to apex ; there- 

 fore abruptly declivous at 



apex 



GG. Elytra normal 



FF. Elytral punctures not close 

 (15 from suture consider- 

 ably pass middle) 



DD. Elytral punctures extremely 

 close (20 from suture not nearly 



reaching middle) 



CC. Front face of labrum not rugu- 

 lose, usually finely punctulate and 

 more or less nitid. 

 D. Punctures of pronotum close (10 

 from front not very nearly 

 reaching middle). 



intrusus, Blackb. 

 granulifer, Blackb. 



normalis, Blackb. 



brevicornis, Blackb. 

 pygmaeus, Blackb. 



anceps, Blackb. 



piger, Blackb. 



[Blackb. 

 consanguineus, 

 raucinasus, Blackb. 



glabratus, Er. 

 mulwalensis, Blackb. 



(l) H. glabratus. Er., is somewhat intermediate in respect of 

 this character. 



