142 REVISION OF THE GENUS EETERONYX^ 



AA. Hind coxae distinctly shorter than the 

 suture between the metasternum 



and its episterna 



B. Hind coxae distinctly longer than ex- 

 ternal margin of 2nd ventral seg- 

 ment , 



C. Puncturation of elytra very close 

 and more or less confluent (as in 

 H. 2'>iceuSy Blanch., horridus and 



normalis, Blackb., &c 



D. Puncturation of elytra smooth 



a nd very minute 



E. Lateral margins of clypeus 

 convergent (hind ward) close 



to the eye Mulwalensis, Blackb. 



EE. Lateral margins of clypeus 

 divergent (hindward) quite 



to the eye punctipennis, Blackb. 



DD. Puncturation of elytra coarser 



and subrugulose nigricans, Burm, 



CC. Puncturation of elytra less close 

 and more isolated (as is usual 



in the genus) 



D. Labrum uniformly rugulose. ... 

 E. Prothorax fully twice as wide 



as long 2^^9^^i blackb. 



EE. Prothorax less than twice as 



wide as long raucinasus, Blackb. 



DD. Labrum not uniformly rugu- 

 lose 



E. Prothorax closely punctulate 

 [intervals between punctures 

 20 (or less) the length of the 

 segment.] 



