U. S. D. A., B. E. Bui. 96, Part I. T. C. & S. P. 1. 1.. March 25, 1911. 
PAPERS ON INSECTS AFFECTING STORED PRODUCTS. 
A LIST OF INSECTS AFFECTING STORED CEREALS. 
By F. H. Chittenden, Sc. D., 
In Charge of Truck Crop and Stored Product Insect Investigations. 
INTRODUCTORY. 
Lists of the insects that attack various cultivated crops are being 
published from time to time and republished with additional names 
until we have, of the various species that affect certain crops, some 
very complete lists. A notable example is the late Dr. J. A. Lintner's 
list of injurious apple-tree insects, which numbers 356 species. a A 
preliminary list published by the same writer in 1882 contained only 
176 species, less than half the number known to affect the apple 14 
years later. Similar lists, more or less incomplete, but furnishing a 
basis for future additions, have been published of insects that affect 
the strawberry, the grapevine, the blackberry, the corn plant, the 
sugar beet, etc. Of many crops, however, there are no better pub- 
lished lists than those given in the catalogue of the exhibits in eco- 
nomic entomology at the World's Columbian Exposition issued in 
1893 as Bulletin No. 31 (old series) of this bureau and in other similar 
exhibition catalogues (Bulletins 47, 48, and 53, new series) which have 
followed. 
At the time the writer undertook the investigation of insects affect- 
ing stored products, which began with the inspection of cereal and 
other seeds exhibited at the World's Columbian Exposition at Chicago 
in 1893, his knowledge — in truth it might be said our knowledge — of 
these insects was confined to the species exhibited by this bureau at 
the exposition and catalogued in Bulletin No. 31 (old series). The list 
of the insects injuring stored corn numbered 20. Of these, two spe- 
cies, Silvanus cassise Reich e and Dinoderus punctatus Say, were incor- 
rectly determined, and a third, Calandra remotepunciata Gyll., is a 
synonym, leaving only 17 species properly named. , 
In his first gropings for knowledge the writer was gravely informed 
by certain fellow entomologists of riper experience than himself that 
everything was well known, that nothing new would be found, and 
gLintner, J. A. — List of Injurious Apple-tree Insects. <llth Rep. Ins. N. Y. 
ior 1895, pp. 263-272, 1896. 
