22 bulletin: museum of comparative zoology. 



is shown by a study of two paratypes to be correct. The paratypes 

 are somewhat larger and darker than most of the specimens in my 

 collection from boreal portions of the United States and British 

 America, but series from Flathead Lake, Montana and Pullman, 

 Washington are almost identical in size and coloration with the para- 

 types from Sitka. Smaller and darker specimens grade into the var. 

 neoniger Emery. 



i 



