32 NEW YORK STATE MUSEUM 
BRNTOMOLOGY 
REPORT BY MORTIMER D. LEONARD, Associate State Entomologist 
Although the past year has not presented any very unusual de- 
velopments in connection with injurious or other insects, it has seen 
a rather unusual change in the personnel of the office of the State 
Entomologist. When money became available early last spring, 
through special appropriation of the Legislature, for a comprehen- 
sive and detailed study of the gipsy moth, under the supervision of 
the New York State Conservation Commission, Dr E. P. Felt, who 
has been in this office for 25 years, was selected to take charge of the 
technical investigations in this work. | 
Doctor Felt therefore applied for leave of absence with retention 
of title, and has been acting as chief entomologist of the New York 
State Conservation Commission, with headquarters in Albany. On 
May ist Dr M. D. Leonard, former extension entomologist of the 
New York State College of Agriculture and later director of the field 
service division of the Bowker Chemical Company of New York 
City, assumed charge of the office of the State Entomologist with the 
title of Associate State Entomologist. | 
The Associate State Entomologist and the Assistant State Ento- 
mologist, Mr D. B. Young, have attempted to continue, as closely 
as possible, the work which the office already had under way and 
have made observations upon many insects, particularly those of an 
injurious nature, in several parts of the State. The more important 
of these may be briefly noted as follows: 
The European corn borer (Pyrausta nubilalis 
Hubn.). The Associate State Entomologist was appointed, in 
place of Doctor Felt, as collaborator on the European corn borer 
with the Bureau of Entomology of the United States Department of 
Agriculture, and has attempted to keep in touch with developments 
regarding this insect, which is of such great potential importance to 
the corn crop of the country. 
In order to obtain first hand knowledge of developments, a trip 
was made in the fall of 1923 to the infested area in western New 
York in the vicinity of Silver Creek. The United States Bureau of 
Entomology maintains a laboratory at this place for the study of the 
corn borer. Following a brief survey of conditions at Silver Creek, 
the writer proceeded to St Thomas, Ontario, Canada, to attend a 
field meeting on the corn borer, participated in by officials of the 
Entomological Branch of the Department of Agriculture of Canada 
