INSECT PSST S U F. V E Y BULL3TIH 
Vol. 11 March 1, 1931 ho. 1 
OUTSTANDING" FNTOMO LOGICAL FEATUFFS IN TII3 UNIT3D STATFS 
FOF; JANUAFY AND FIBFUAFY, 1931. 
In introducing Volume 11 of the Insect Fest Survey Bulletin, we 
wish to express the gratitude which the Survey feels for the many 
commendations received fron its readers on the last Summary Number. 
The quality of this number, and, in fact, of the entire Survey Bulle- 
tin, is to a very large extent attributable to the increasing cooper- 
ation which we are receiving fron: our collaborators. Probsbly the 
most influential factor in this increased efficiency is the appreci- 
ation by the entomologists of the States of the value of State Surveys. 
Each year additional States include this phase of v:orh" as a, nag or 
project, and with each State Survey set up, the Federal Insect Fest 
Survey's picture of the entomological conditions ir that State .advances 
materially. 
The Survey wishes also at this tine to remind its collaborators 
that it is now in position to assist them nateriallv in working up 
geographical distribution and lists of host plants and of par- site?" of 
individual pests. It can not, however,- undertake the preparation of 
comprehensive lists of insects, although its files are always open to 
research workers who find it possible to visit Washington. About 20 
requests for informational service were filed during the past year. 
Quite naturally, when such a large mass of information from so 
many and varied sources is receive.-, Mistakes in determination and 
interpretation will occur. The Survey invites its readers to criticise 
any feature of the material that it publishes and urges then, to send 
in corrections promptly in order that mistakes nay not remain in the 
permanent records of the Survey but may be co"recte J . in subsequent 
numbers of the Bulletin. 
The very remarkable drought that prevailed over a lar -e part of 
the country last year will undoubtedly have a marked effect on the 
abundance of many insects. The very mild winter that has prevailed 
over an equally large re~ior. will also probably be reflected in insect 
abundance. Our collaborators should strain every effort this year to 
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