E-176 MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY 
UNITED STATES DEPARTMENT OF AGRICULTURE 
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CEREAL AND FORAGE INSECT. INVESTIGATIONS 
W. R. Walton, Entomologist in Charge 

Lievt. W. H. Larrimer has resigned from military service and. has been rein- 
Stated in the investigational work of this branch of the Bureau. He will assume 
charge of the laboratory at West Lafayette, Ind., beginning about March 15. Lieut. 
Larrimer was formerly in charge of the Hessian-fly experimental plats at Nash- 
ville, Iil., and previously was in charge of a field laboratory at Missoula, Mont. 
D, J. Caffrey is engaged in securing permanent quarters. in the vicinity of 
Boston and has been placed in charge of the investigational work in connection 
with the Huropean corn-borer activities. 
R. J. Fiske, recently employed by the Federal Horticultural Board, has 
been transferred to this branch of the Bureau and assigned to the Columbia, S&S. C., 
field laboratory, where he will be connected with the southern corn rootworm in- 
vestigations. 
A cooperative investigation of the wireworms injurious to cereal crops in 
central and eastern Washington has been arranged between this branch of the Bu- 
-reau and the Washington State Agricultural College. An entomologist will be 
‘assigned from the staff of the Forest Grove, Ore., field station for cooperation 
in this work and will be stationed probably at Lind, Wash., during the growing 
season of the year. 
LL. J. Hogg, formerly employed in the alfealfa-seed chalcis investigations 
at Tempe, Ariz., resigned February 24, 

MISCELLANEOUS INSECT INVESTIGATIONS 
The following notes are from specialists in this Bureau working on collec- 
tions in the Division of Insects, United States National Museum: 
It should be of interest to all students of Hemiptera to know that Capt. 
H. i. Gibson is attempting to list type data of all North American species of 
Heteroptera and Homoptera, such data to include, principally, where the type or 
typo material is now deposited; of what the type material consists; where, when, 
and by whom it was collected. Any assistance in this work will be greatly appre- 
ciated. Mr. Gibson would like to call attention again to his proliminery studies 
of the immature stages of Heteroptera and to request material during the coming 
seasons of eggs and nymphs, 
Of the Lepidoptera submitted for determination, a constantly increasing 
proportion is in one of the immature stnges, either larval or pupal. To aid in 
the identification of such material an alcoholic collection has been established 
aS a permanent part of the Museum’s collection of Lepidoptera, The attention of 
chiefs of branches and field men of the Bureau of Entomology and others. engaged 
on life-history and economic studies of Lepidoptera is called to the needs of 
this collection. Of many of the most common species there is no, or insufficient, 
