REPORT OF THE STATE ENTOMOLOGIST 1907 9 
Species, most of which were reared in 1907, together with a number 
of preliminary keys. The State collections in this group represent 
probably over 600 species. We have already described over 250 
new forms, and it would not be surprising if, after working over 
the material, there were nearly as many more to characterize in 
addition to those previously described by other workers. The 
classification of our American species has been in a chaotic state, 
making it practically impossible to identify many of our forms. 
Our work, now well in hand, will establish, when issued, a much 
needed classification of this important group. It will be an ex- 
tensive contribution, presumably of about 800 pages. 
The rearing of these insects requires a great deal of time and 
attention, and the marked success along this line last season was 
due very largely to the devotion of Assistant Entomologist D. B. 
Young. The collecting of the insects and the galls in the field also 
requires considerable time, and much of this work has been attended 
to by assistant I. L. Nixon. Mr J. R. Gillett, a medical student, 
was engaged throughout the summer in making microscopic mounts 
of these insects, some 2000 most excellent slides being prepared. 
Gall mites. Several of these extremely minute forms are now 
recognized as injurious to the fruit interests and it is probable that 
further investigations will bring to light hitherto unsuspected in- 
juries by the members of this group. It is extremely gratifying to 
include as appendix B a catalogue of the “ Phytoptid” galls of 
North America by George H. Chadwick, Zoologist. 
Publications. Numerous economic articles have been con- 
tributed by the Entomologist to the agricultural and local press. 
The large number of new species of Cecidomyiidae taken in 1907 
made it advisable to issue preliminary descriptions of some at least, 
and a reprint from the report entitled: New Species of Cecido- 
myudae, published January 30th, characterizes 179 new species, 
The second volume of Insects Affecting Park and Woodland Trees 
[N. Y. State Mus. Mem. 8] appeared February 25 and has repeat- 
edly proved its value during the past season. The demand for 
information respecting shade tree pests led to the issuing of a 
special bulletin on the White Marked Tussock Moth and Elm Leaf 
Beetle [N. Y. State Mus. Bul. 109], which appeared May 10, while 
the report of the Entomologist, owing to delays, was not issued till 
July 16. | 
Collections. The special collecting and rearing of Cecido- 
myiidae by members of the office staff has resulted in enormous 
