105 
1930] A New Nebria from Mount Rainier 
ruptions. Inner wings only about one-third as long as 
elytra. 
Length 10-13 mm. Width 4-5+ mm. 
Holotype $ and allotype $ in the writer’s collection 
from Mount Rainier, Washington, near Paradise Valley, 
just below snow line at about 6000 feet elevation, July 18 
and 13, 1927. A good series of paratypes from the same 
locality, July 13 to 20. All specimens taken by the writer. 
There is some variation in the precise form of the basal 
angles of the prothorax and in the punctuation of the 
elytral strise, but the species is not a particularly variable 
one. 
As has been said, this is the Nebria which sometimes 
goes in collections as columbiana Casey. It belongs to the 
ovipennis group, but differs from ovipennis , its closest rela- 
tive, in the submetallic lustre of the elytra and the much 
longer antennse. It resembles also Nebria kincaidi Schwarz 
( columbiana Casey), but the latter is a more convex 
and brilliant species, with a more strikingly cordate pro- 
thorax, with the elytral intervals more interrupted, and 
with more prominent eyes. It was probably Casey’s failure 
to point out the last character in comparison with Nebria 
ovipennis Lee. which first led to the misidentification of his 
species. N. vandykei is obviously distinct from the other 
American species of Nebria with obliterated humeri 
( ingens Horn, spatulata V. Dyke, river si V. Dyke, and 
lyelli V. Dyke), although I know river si and lyelli only 
from descriptions. 
I take great pleasure in naming this Nebria for Dr. 
Edwin C. Van Dyke, who has discovered and described so 
many fine species of the genus in western North America. 
