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chinch-bugs, and seventy-one in an orchard which was being de¬ 
stroyed by canker-worms. The lirst collection, of eighty-two speci¬ 
mens from various situations, represented thirty-two species, belonging 
to eighteen genera. They were obtained in different parts of the 
State, from DeKalb county in the north to Union in the south, and 
at all seasons of the year, from April to October, and doubtless rep¬ 
resent fairly well the food of the family in Illinois during the entire 
year. The collections illustrating the food of the Carabidse as related 
to the cabbage-worm were made in a field of young plants at Nor¬ 
mal, Ill., in April, 1882, where the larvie of Agrotis annexa were 
abundant and destructive. 
I 
The collection showing the food of this family in the presence of 
the chinch-bug consisted of ten specimens of a single species found 
in July, 1882, very abundant about the roots of corn in a field 
where the bases of the stalks were largely covered by young chinch- 
bugs. 
The third special collection consisted of seventy-one insects, rep¬ 
resenting nineteen species, obtained in May of two successive years 
(1881 and 1882) in an orchard which had been infested for several 
years with the canker-worm to such an extent as to cause the total 
destruction of a large part of the trees. 
Genus Calosoma. 
This genus is represented by three specimens of the brilliant green 
G. scrutator, collected in the orchard with the canker-worms, and by 
nine of C. calidum, which were from various situations. 
Extremely minute fragments of insect crust wore found in five of 
these beetles, and were reckoned at about half the entire food of 
the group, the remainder being distinguishable only as apparently 
derived from animal sources. 
Genus Scarites. 
Two specimens of S. subterraneus, taken in 1882, one at Normal 
and the other at Anna, in Southern Illinois, had eaten only animal 
food, one-half of which was unrecognizable, and the remainder in¬ 
sects. Four specimens of the same species, taken in the cabbage- 
field, have a similar record. 
The above nineteen specimens, belonging to three species, were 
the only examples of Carabidee proper whose food was studied, and 
all agreed in a strictly carnivorous character. 
Genus Galerita. 
Seventeen specimens of Galerita janus (an abundant beetle, with 
purple wing covers and rufous head and thorax,) had made a much 
moie varied record. Four of these were from various localities, and 
thirteen were from the orchard infested by canker-worms. All of 
the group first mentioned had eaten insects, which amounted to 
eighty-eight per cent, of their food, nearly all caterpillars of unde¬ 
termined species. The remaining twelve per cent, consisted of 
