The Horned Larks and Their Relation to Agriculture . strange that SO few are these insects are usually active only at night,and remain concealed by day, they are well pro-ed; but some bird- eat considerable numbersof them. Of the few found in the stomach-ofhorned lark- only one species, Agonodi rxispallipt be identified. This beetle(fig. 3) is known tofeed upon the chinch bug, but about half of itsfood i- vegetable, partly grass seed. Its eco-nomic relation-, then, are about evenly balanced, and it- wholesaledestruction would be a loss. Only l.~> of the 1,154 birds examinedha
The Horned Larks and Their Relation to Agriculture . strange that SO few are these insects are usually active only at night,and remain concealed by day, they are well pro-ed; but some bird- eat considerable numbersof them. Of the few found in the stomach-ofhorned lark- only one species, Agonodi rxispallipt be identified. This beetle(fig. 3) is known tofeed upon the chinch bug, but about half of itsfood i- vegetable, partly grass seed. Its eco-nomic relation-, then, are about evenly balanced, and it- wholesaledestruction would be a loss. Only l.~> of the 1,154 birds examinedhad eaten any carabids. and these insects represented percentof the total food. Thus the destruction of these insects by the hornedlark i- too slight to be noticed. Tiger beetle-, another group of pre-daceous beetle-, are also very scantily represented in the food ofthe horned larks. Although the lark- often ^\ on the sandy beachesand road- where these active insects are most abundant, only two ofthem had been secured bv the birds Fig. 3.—Predaceous beetle i A go a ml i ru a pallipes).I From Riley, Bureau ofEntomoloe
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