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-E 102. MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY 
UNITED STATES DEPARTMENT OF AGRICULTURE 
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_ Number. 37. May, 1917, 
| "SOME MAY BE FORTUNATELY ELIGIBLE FOR ENLISTMENT: MANY MORE MAY BE OF GREATER 
VALUE TO THE COMMONWEALTH THROUGH THE ACTIVITIES IN WHICH THEY ARE AT PRE- 
SENT ENGAGED: BUT ANY AND ALL MAY FULFILL THEIR FIRST PATRIOTIC DUTY - 
; 
BUY A LIBERTY BOND NOW!" 
COOPERATIVE SERVICE COMMISSION, BUREAU OF ENTOMOLOGY, 
i ee . “ 
? Pursuant to memorandum of Dr. Howard, April 20, the Advisory Committee to 
_ the Chief, Bureau of Entomology, was duly established with Mr. C, L. Marlatt, 
Chairman of Committee, and special meetings were held on April 23, 26, and 28. 
The first number of the official publication of the Committee, known as the 
i "Emergency Entomological Service," was issued May 1, 1917. 
This bulletin is devoted to reporting cooperation between Federal, State 
_ and Station entomologists and other agencies, and is to be issued monthly, 
5 
; BOOKS RELATING TO HEMIPTERA. 

The Department Library has recently purchased, for the use of the Bureau 
_ Of Entomology, such of the books and pamphlets in the collection of the late 
f Philip R. Uhler as were not already in the library. These have been catalogued 
and are filed with Mr. E. H. Gibson at the National Museum. This addition to the 
¢ Department’s collection of literature on Hemiptera will admirably supplement the 
, collection «f the late Otto Heidemann which the Museum hopes +o purchase later. 
} 
LIST OF WORKERS IN HEMIPTERA: 2, HOMOPTERA. 
The second part of the list of American workers in Hemiptera, entitled the 
"Homoptera (exclusive of Aphididae, Aleurodidae and Coccidae)" went to press 
May 19. This is compiled by Edmund H. Gibson, of the Bureau and all enquiries 
_ should be so addressed, 
THE WORK ON STORED INSECTS, 
War conditions greatly emphasize the importance of the control of insects 
damaging stored grain and other stored foods. In Russia the leading entomologists 
were called in conference on this subject many months ago, In this emergency it 
has been decided to strengthen the work of the Bureau in this direction by estab- 
lishing a distinct section or branch for the especial handling of this important 
problem, 
) Work on insects of this character has hitherto been successfully prosecuted 
by Doctor Chittenden in addition to his work on insects affecting truck crops in 
itself is a vast field of enormous importancs at the present time and which will 
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