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7. Abdomen almost smooth, only anteriorly with isolated punctation. I. 4- 



5 mm 1 . H« cinnamomea aravh . 



Abdomen anteriorly densely and rather robustly punctated. L. 4 mm 



2. H. hospita Mark. 



8. Pronotum with sharp intire median groove. Body dull or dully glistening: 



3. subg. Lyprocorrhe Thorns. - Abdomen finely punctated to the tip. 



L. 3 mm 5. H . anceps Er. 



Pronotum without median groove. Body greasy glistening: 2. subg. Noto- 

 thecta Thorns 9. 



9. Antennal middle- and next-last joints (5-10) only feebly transverse. 



L. 3.5-4 mm 3. H. confusa Mark. 



1&. Pronotal epipleura strongly incurved and not visible from side; side- 

 margins uniformly .curved to the fore-corner. Pronotum slightly nar- 

 rowing anteriorly without longer side-bristles, most often as broad 

 as or broader than elytra. Abdomen rather strongly tapering, (species 



in appearance reminiscent of Oxypoda '; 11. 



Pronotal epipleura less strongly incurved and often visible from side; 



side-margins anteriorly more strongly arcuate, curving downward. Pro- 

 notum not narrowing anteriorly, most often narrower than elytra, its 

 side-bristles most often long, more rarely (subg. Datomicra y short 

 and indistinct 22. 



11. Ihird joint of the antennae longer than the second: subg. Oo prothasa 



Thorns 12. 



Third joint of the antennae shorter than the second or at most as long 



as this. 14. 



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