128 THE CANADIAN ENTOMOLOGIST. 



17. Helobia [Nebria] castanipes Kby. An immature form of N. 



Sahlbergi Fisch.j described anteriorly to Kirby, 

 from iVlaska. 



18. Chlaenius sericeus Forst. 



19. " impunctifrons Kby. is pensylvanicus Say. 



20. " nemoralis Say. 



21. " quadricollis Kby. is tricolor Dej. var. 



22. " cordicollis Kby. This species, anteriorly to Dr. Le- 



conte's visit to the British Museum (1869), was 

 erroneously considered to be chlorophamis Dej. 



23. " emarginatus (Kby.) The type of this species could 



not be found in the British Museum. It is not 

 identical with Say's species, and as the name is pre- 

 occupied, it would be better to drop it entirely from 

 our lists. 



24. Platynus angusticollis (Kby.) is not the European species of that 



name, but our common sinuatus Dej. 



25. Agonum extensicolle Say is a Platynus. 



26. " picipenne Kby. is probably the species subsequently 



described as Platynus hitulentus Lee. The varie- 

 ties E and D are distinct and are Plat, ruficornis 

 Lee. 



27. " sordens Kby. Has been named in some collections 



fuscescens Chaud. 



28. " melanarium Dej. is a Platynus. 



29. " seminitidum Kby. Probably the same as Platynus 



chalceus Lee. 



30. " simile Kby. In doubt. 



31. " affine Kby. is Platynus Harrisii Lee. 



32. " erythropum Kby. The name is pre-occupied and Plat. 



subcordatus Lee. must be used. 



33. " cupripenne Say. is a Platynus. 



34. Calathus gregarius Say. 



35. Platyderus nitidus Kby. is Pterost. erythropus (Dej.) 



36. Argutor bicolor Kby. is Pterost. patruelis Dej. 



37. " femoralis Kby. is a Pterostichus. 



38. " mandibulars Kby. is a Pterostichus. 



39. " brevicornis Kby. Probably the same as fastidiosus 



Mann. This and the preceding species belong to 



