Genital apron circialar or a less narrow- 

 ly pointed triangle with lateral margins 

 approximating dorsal margin in length. 

 Scutum usually somewhat longer than wide; 

 ptmctations variable; usually less rugose. 

 Size moderate (except H. schulzei ) to 

 small T , 



8. Genital apron a triangle bounded on each 

 side by a lobe; greatly bulging in pro- 

 file. Scutum usual 1 y with sinuous pos- 

 terior margin, numeroTis small puncta- 

 tions, and two irregular, submedian 

 rows of large, deep punctations. Usua!U 

 ly moderate size H. BvIPELTATUI'I 



Figures l"7?"anTT^ 



Genital apron circular or triangular 

 but lacking lateral lobes; greatly 

 bulging or gradually depressed in 

 profile. Scutum usually vrith veiry 

 few punctations 



9. Genital apron triangular; gradually 

 depressed except when greatly en- 

 gorged but never convex in profile. 

 Scutum smooth and shiny with very 

 few, scattered punctations of large 

 size; uncommonly with superficial 

 small punctations. Usually moderate 



size H. DETRITUM 



Figures T60 and 161 



Genital apron small, triangular or 

 circular, convex or bixlging in pro- 

 file. Scutum usually lacking smooth, 

 shiny appearance of H. detritum ; few, 

 scattered punctations, those present 

 small or moderate size; almost never 

 large. Usually small size and narrow 

 shape H. BCCAVATUM 



Figure s~168 and 169 



- 511 - 



