54 THE FLORIDA ENTOMOLOGIST 
Parshley has made C. canadensis Parsh. a synonym of this 
species. 
Corythucha arcuata var. mali Gibson. 
Paratypes and other specimens in the collection of Mr. H. G. 
Barber and numerous specimens in my collection indicate C. mali 
Gibson to be a good color variety of typical C. arcuata Say. In 
the typical form as well as the variety, the size of the insect and 
the height of the hood is somewhat variable. The species breeds 
on various species of oaks, apple and occasionally on hard and 
soft maple. 
Corythucha associata Osborn and Drake. 
Numerous specimens from Ohio, Tennessee, New York, Mary- 
land, New Jersey and Washington, D. C., make C. spinulosa Gib- 
son a synonym of this species. The hood is slightly variable in 
size and color, but there seems to be no forms indicating good 
varieties. Associata O. & D. is slightly larger and has a more 
elevated hood than C. aesculi O. & D. This species and C. pruni 
O. & D. have been confused in literature by Gibson with C. fus- 
comaculata Stal. The latter has not been taken in eastern United 
States, but specimens are at hand from Arizona, Mexico and 
Central America. C. fuscomaculata is a very variable species 
in size, but structure and color pattern remain almost constant. 
ENTOMOLOGICAL TRAINING AT THE UNIVERSITY OF 
FLORIDA* 
The subject of a presidential address is one to which your 
retiring president has given much thought and consideration. 
Many subjects have presented themselves as being of adequate 
potential importance but have for one reason or another been 
discarded. The outcome is a very short paper on a topic which, 
it seems to me, is very important and of timely interest. 
I readily assure you that I appreciate the size of the subject, 
and have no other idea in mind than that of presenting for your 
consideration my own views and then only for what they may be 
worth. 
If, in the course of this discussion, any of you should gain the 
impression that my remarks are tainted with ambiguity or 
unjust criticism it will be deeply regretted. Ambiguity or un- 
just criticism is very remote from my thoughts. I may criticise, 
*A ddress of the Retiring President, Geo. B. Merrill. 
