252 Proceedings of Indiana Academy of Science 
lecting, determining, monographing and in other ways assist in the 
plans. Where possible, residents of Indiana would be responsible for 
the work, but in some groups it would be necessary to look to others 
for co-operation in the systematic studies. Probably the Myriopoda 
and Arachnida should be included in the insect survey plans since 
they are usually treated with the insects and by entomologists. 
Probably three card indexes should be maintained, as follows: 
I. Index of the previous references in literature, arranged sys- 
tematically. 
II. Index of the collection records, (a) the insect index arranged 
systematically and (b) a host index referring to the species in the 
insect index (a); arranged alphabetically. 
III. Index based on the economic, biologic, and ecologic records and 
arranged systematically. 
All three indexes are in use by the writer at the present time and 
many records have been accumulated. 
The uses and values of an insect survey for Indiana are innumer- 
able but a few might be noted at this time. 
Aside from the purely scientific value of such a survey and col- 
lection, this work will be of direct use in handling economic problems 
and in this connection we will enumerate as follows: 
1. Prevents errors and facilitates accurate identification. We will 
not be safe from serious errors in our work with economic insects until 
we know far more of our insect fauna than we know now. 
2. We will be able to define with considerable accuracy the “Life 
Zones”. Thus the Insect Survey work will show the regions where 
watch must be kept or measures applied and will avoid waste of 
attention and effort in regions where the problem is not of importance. 
3. In the case of sudden outbreaks of insects not previously known 
to be destructive, our Insect Survey will furnish data to enable imme- 
diate action and will furnish a basis upon which to proceed with our 
studies and for information to the public. 
4. Insects are continually changing habits and where a previous 
knowledge of the insect has been available it has proven of greatest 
value in such cases. A few examples are: The strawberry root worm 
attacking strawberry plants but doing very little damage has, in the 
past few years, become one of the worst pests of roses in greenhouses; 
certain snout beetles of the genus Lixus which have heretofore been 
known to attack only wild dock are becoming a pest of corn in the 
swamp areas now being drained in Greene County; the greenhouse leaf 
roller was once only known to attack weeds but now is a common 
pest of celery and other garden vegetables as well as numerous green- 
house crops; the rose leaf-roller was little known when it attacked wild 
cherry but now it is a pest of rose; the quince curculio attacked only 
haws before the advant of the quince; a common tree hopper until 
recently was to be found only on wild plants but now it is generally 
common on several important ornamentals; and a host of other exam- 
ples could be cited and additional ones are certain to come to us every 
year. 
