The Food Relations of the Carabidce and Coccinellidce. 49 
while mollusks, earth-worms, myriapods and Arachnida make up 
the remainder. 
All orders of insects are represented on the list, with the excep- 
tion of Orthoptera and Neuroptera. The ratios of none of these 
are of any special importance, except that of the Lepidoptera, 
which stands at fifteen per cent. Hymenoptera and Diptera are 
each one per cent., and Coleoptera and Hemiptera each two. 
Among the Coleoptera, only Scarabaeidae and Telephoridas were 
recognized; among the Hymenoptera only a single ant; and 
among the Hemiptera, plant-lice and chinch-bugs only. About 
half the vegetable food could be distinguished as exogenous or 
endogenous, the remainder being of too indefinite a character to 
be assigned to either class. As far as known, the endogenous 
food was more than twice as abundant as the exogenous, and con- 
sisted almost wholly of grass or grass-like plants. The fungi, 
which make somewhat more than a fourth of the food, require no 
further special mention. 
If, discarding the ratios given above, we look only to the num- 
ber of specimens in which the various food elements are detected, 
we reach similar results. One hundred and seventeen individuals 
of the one hundred and seventy-five represented by this final 
table had eaten animal food, and ninety-seven had taken vegeta- 
tion. Insects were recognized in eighty-two, Lepidoptera in thirty- 
one (about one-half of which had eaten canker-worms), Diptera 
and Coleoptera in nine and four respectively, and Hemiptera in 
seven. Earth-worms were found in five, myriapods (Geophilus) 
in but one, and Arachnida (mites and spiders) in nine. Grass- 
like plants were taken by thirty-six, and fungi by twenty-nine. 
Scanning the totals for each genus on this final table, a few 
results are noted which are worthy of special remark. First, we 
observe that at least two very abundant genera, represented by 
specimens enough to give us a fair probability that the average 
food is correctly exhibited, can hardly be classed as carnivorous 
insects at all, namely, Harpalus, with its nineteen specimens and 
twelve per cent, of animal food, and Anisodactylus, with its 
thirty-one specimens and twenty-one per cent, of the same. 
Amara and Amphasia should probably be placed in the same cat- 
egory, six specimens of the first and five of the second having 
taken but twenty-three per cent, and 'seven percent., respect- 
