114 
Continuing the comparison of the three separate groups, we find 
that the beetles represented by the first, had taken insects to the 
amount of twenty-six per cent.; that those from the orchard had eater 
about double this ratio; while those from the cabbage field fell a 
little short of it. This last fact is probably related to the time of the 
year when these beetles were taken,—the middle of April in a very 
late spring, when insect life in general was but just beginning to 
stir abroad. The ratios of Diptera, Coleoptera and Hemiptera, were 
but trivial in all these groups, and not worth separate mention. 
The extraordinary difficulty of determining the elements of the vege¬ 
table food from the minute fragments found in the stomachs of these 
beetles, makes it impossible to enter into much detail with respect 
to this! The miscellaneous collections, and those from the cabbage 
field, had found a little over half their food in the structures of 
plants, while those from the orchard had obtained from this source 
somewhat less than a quarter. Pollen of exogenous plants, which 
will be found to form so large a ratio of the food of the family next 
to be considered, appeared here only in three of the specimens, and 
amounted to but three per cent, of the entire food of the first group. 
These beetles fed much more largely on graminaceous plants, the 
recognizable tissues of which amounted to about seventeen per cent, 
in the first group, and eight in each of the special collections. 
Fungi were reckoned at about one-tenth of the food of the beetles 
included in the first collection, and only two per cent, of those from 
the orchard. The • spores of the omnipresent Helminthosporium 
make the most important contribution to this element of the food, 
but a number of other genera were recognized. 
A few words will suffice for a final discussion of the data relating 
to all the collections, from whatever source derived. As already 
remarked, a little over half the food of these one hundred and seven¬ 
ty-five specimens consisted of animal matter, about one-tliird being 
insects, 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 Scarabaeidse and Telephoridse were recognized; 
among the Hymenoptera only a single ant; and among the Hemip¬ 
tera, 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 positively assigned to either 
class. As far as known, the endogenous food was more than twice as 
abundant as the exogenous, and consisted 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 number 
of specimens in which the various food elements were detected, 
we reach similar results. One hundred and seventeen individuals 
of the one hundred and seventy-five exa?nined had eaten animal 
food, and ninety-seven had taken vegetation. Insects were rec¬ 
ognized in eiglity-two, Lepidoptera in thirty-one (about one- 
