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MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY 
UNITED STATES DEPARTMENT OF AGRICULTURE 


Number 82 February, 1921 
CEREAL AND FORAGH INSECT INVESTIGATIONS ede h this be | 
ome Pe RIC aL ULL ui La 2TIOL tire 
W. R. Walton, Entomologist in Charge 
a ET oe 4 
= PRR tem srenmancacesmapeseer; = 

The principal activities in the corn borer investigations in New York 
State will be transferred to Silver Creek, that State, at an early date, 
with H. N. Bartley in charge for the present. J. H. Harman has been 
placed in charge of the work near Schenectady, and will maintain a 
small force at that point for the purpose of studying the insect in 
that vicinity. 
C. M. Packard and B. G. Thompson have submitted a brief manuscript 
which will be published as Department Circular 172, dealing with the 
control of the range crane-fly, Tipula simplex. The presentation of this 
paper is due principally to the work of Mr. Thompson, who recently discovered 
that the poisoned bran bait is a specific remedy for the insects, which 
come to the surface of the soil at night in order to feed. This dis- 
covery has already been announced in the News Letter of the California 
Department of Agriculture. 
Herbert D. Smith, a graduate of the Massachusetts Agricultural College, 
formerly connected with the corn borer work, has been appointed scientific 
assistant and assigned to the Hessian fly work at Carlisle, Pa. 
E. V. Walter, of the Tempe, Ariz., station, recently visited Bash- 
ington for the purpose of consultation and to study Lepidoptera collected 
in the Salt River Valley. Mr. Walter’s collection contributed several 
species and at least one new genus to the Museum collection, 
C. H. Gable, J. R. Horton, and Herbert Walkden recently investigated 
the green-bug situation in Oklahoma and Texas, and reported on February 
24 that although the situation in northern Texas seems serious, no 
general invasion is yet apparent in Oklahoma, and that most of the reports 
of the presence of Toxoptera in the latter State proved to be Aphis 
avenas, although an invasion of Toxoptera in that State is to be expected 
if favorable weather conditions should continue. 
L. H. Worthley and D. J. Caffrey, of the corn borer investigations, 
visited Washingtoa recently for the purpose of consultation with regard 
to the plans for the season’s work. 
C. N. Ainslie and G. G. Ainslie recently have constructed a photographic 
stand for laboratory use, at a nominal cost, which is giving good 
satisfaction, They will be glad to correspond with any members of 
the Bureau who desire to socure information with regard to it. 
