5056 Insects. 



Genus Cercyon. 



1 .C. obsoletum, Gyll. 



2. C. Haemorrhoidale, Fab. 



3. C. hseruorrhoum, Gyll. 



4. C. laterale, Marsh. 



5. C. unipunctatuui, Linn. 



6. C. quisquilium, Linn. 



7. C. terminatum, Marsh. 



8. C. nigriceps, Marsh. 



9. C. pygmaeum, ///. 



10. C. littorale, Gyll. 



11. C. depressum, Steph. 



12. C. aquaticum, Mills. 



13. C. melanocephalum, Linn. 



14. C. lugubre, Payk. 



15. C. flavipes, Fab. 



16. C. rainutum, Fab. 



17. C. anale, Payk. 



Genus Megasternum. 

 1. M. obscurum, Marsh. 



Genus Cryptopleurum. 

 1. C. atornarium, Fab. 



I will only add, in conclusion, that, if there are any of the younger 

 readers of the ' Zoologist' or others who are desirous of examining 

 these interesting families, but feel at a loss in regard to nomenclature, 

 I shall have pleasure in giving them any assistance in my power; and 

 if they will entrust me with examples I will return them with their 

 proper names. The only stipulations that I would make are that 

 their boxes by post should be wrapped in wool and tied up with 

 string, as well as sealed or fastened with paste ; and that the speci- 

 mens which they contain should he fairly mounted. 



Hamlet Clark. 

 Northampton, February 25, 1856. 



