Totes 
On February 12, S. E. Crumb, of the Bureau's truck-crop insect 
laboratory at Puyallup, Wash., came to Washington and will spend some 
time here studying the larvae of the North American Noctuidae. 
Don M. Rees, of the University of Utah, at Salt Lake City, spent 
February 17 in the section of Diptera, discussing mosquitoes and their 
classification. 
J. F. W. Pearson, of the department of entomology, University of 
Chicago, examined the National collection of North American bees of the 
genus Halictus February 19, in connection with observations he has been 
making on these bees in the section near Chicago. 
H. H. Stage, of the Division of Insects Affecting Man and Animals, 
spent parts of the interval February 20 to 26 studying the collection 
of mosquitoes preparatory to undertaking biological and control investi- 
gations on them in the region of the Columbia River in Oregon. 
On February 21, J. Lyell Clarke, Sanitation Engineer of the Des 
Plaines Valley Mosquito Abatement District, Riverside, Ill., came to 
Washington to discuss mosquito problems with C. T. Greene of the Bureau's 
staff. 
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