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them apart, or could you distinguish them if sent for determination ? 
No reply is expected. Not one of these important species should be 
absent from any of our collections. By a little cooperative exchange 
we might all have them, along with many others. 
The accumulation of the State fauna each must look after for his 
own region, but the general economic collection can be made only 
through some sort of cooperation. There are a large number of seri- 
ous pests in rather restricted localities which should also be represented 
in all economic collections so far as possible. In Colorado the bean 
beetle (Zp7lachna corrupta) is as bad on the wax beans as is the potato 
‘beetle on potatoes; the fruit-tree leaf-roller (Cacwcia argyrospila) I 
have known to entirely defoliate whole orchards, and its close relative, 
the box-elder leaf-roller (Cacwcia semiferana), is equally destructive 
to the foliage of the box-elder; the currant and gooseberry fruit fly 
(Epochra canadensis) sometimes destroys three-quarters of the goose- 
berry crop, and the plum gouger (Coccotorus prunicida) punctures 
fully nine-tenths of our plums on the eastern slope, and still it would 
not be surprising to learn that in many of the States not one of these 
pests is represented in the station or agricultural-college collections. 
This does not seem right. 
If the best way to build up our collection is by individual exchanges, 
then let us follow that plan. If we can adopt some general method 
and all work to it, let us do that. It seems to me this is a good prob- 
lem for a committee to work out for us. In any case, let us all collect 
large series of duplicates of those insects that are specially injurious 
or beneficial in our different localities, and then endeavor by some 
plan to better our economic collections, and those of other States, 
through exchanges. I should be glad to hear of any who would like 
to have Colorado’s injurious and beneficial insects in their collections 
and are willing to exchange species from other States for them. And 
then, it is often important to have the same species from different 
localities to note variations. 
Let us talk freely of our plans, and let us hear suggestions from 
any and all in regard to methods and lines of investigation that seem 
to you to be specially important. In this way we shall broaden our 
horizon and get a larger view of the scope and importance of our work. 
The next object as stated in our constitution is ‘‘to suggest when 
possible certain lines of investigation upon subjects of general inter- 
est.” Such work would in large part be cooperative, but not entirely 
so. Nothing, perhaps, would be of more general interest than infor- 
mation and suggestions as to best methods of putting information 
upon applied entomology into the hands of the common reader. To 
what extent is it advisable to use the newspaper and the press bulletin? 
Is it best to put out bulletins in two series, one for the farmer and one 
for the station worker and specialist? Shall we publish all data from 
