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Michigan. . H. Hutson (M ay 2): The saw-toothed grain beetle, ( Oryzaophilus 
surinamensis L.) appeared in. swarms in houses at Rogers City. 
Minnesota, A. G. Rugglcs and assistants (May): The rice weevil ( Sitophilus 
oryza L.) was infesting a hin of wheat in Lac qui 3j3arlc County, 
in the southwestern part of the State, on May 10# Cynaeus angustus Lee. 
is present in stored corn in Ramsey County, in the . southwestern part 
of the Stale. Triboliun naden s Charp, found in large numbers in a 
sample of grain screenings sent into Minneapolis from Ramsey County. 
Iowa# G. C. Decker (May 29) : _C. angustus was first observed as a stored- 
grain pest in Iowa, in 1940 and is now frequently encountered in 
stored corn. Live larvae and a.dults taken from most of the infested 
bins indicalc that this species is comparalivoly hnrd.cmd ha.s a 
/tale^wide distribution. The red flour beetle (T. cast annum ) , the 
most common insect pest of stored grain in Iowa., has been taken in 
practically all Iowa counties. Spring observations hake . shov/n a 
very high winter mortality of this species,, except in large storage 
bins and bins where insect populations were able to maintain com- 
paratively high temperatures throughout the winter. The prevalence 
of live adults of the flat grain beetle ( Laemophloeus minutus Oliv. ) 
in practically all infested bins seems to brand this species as one 
of the most winter hardy of the common, ,'storcd-grain insect pests. 
The foreign grain beetle ( Cathartus advena Waltl.), found in 
stored corn throughout the State, has been groally reduced by winter 
mortality, except in bins maintaining higher than average winter 
temperatures. The saw-toothed grain beetle ( Oryzaephilus surinamensis (i 
has been token in stored corn in practically all counties within the 
southern half of the Stale but only ■sca.tter.cd infestations have been 
recorded for northern Iowa. This sipecics is comp creatively winter 
hardy and live insects are cecily found in bins known to be infested 
in 1940. . 
North Dakota, P. G. Butcher (May 23): Stored— groin insect pests reported 
as becoming more numerous. Infestation of L. minutus was observed 
in a storage elevator at Neche, Pembina County, in the northeastern 
part of the State, during the week ended May 24, but more primary" 
grain pests were conspicuous by their absence. in the infestation. 
South Dakota. H. 0. Severin and G. I. Gilbertson (May 23): S. oryza, 
the cadelle ( Tenebroides mauritanicus L.), 0. sur jnamensi s, the 
granary weevil (S. granarius L.), P. interpunctella , the confused 
flour beetle (T. confusum Duv.), advena , L. minutus ,. and 
_C. angustus have been the most serious storod-graln pests in the 
State. • 
Nebraska. _ H. D. Tate (May 1~[): S. granarius and 0. surinam.ensis were 
found in flour in Lancecter County on April 23. Specimens of S. 
granarius were submitted from Knox County on May 10. Reported as 
found in chicken feed and corn. 
