NATURAL ENEMIES! PREDACEOUS INSECTS. 
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above ground, and the larva of a ground beetle was found by a Mr. 
Swing in loose earth under peach trees in large numbers, which Mr. 
Walsh believed searched out the insects in the ground. 
Fig. 31.— Chrysopa oculata. Species of Chrysopa are recorded as predaceous on the plum curculio. (From 
Marlatt.) 
Four other species of ground beetles were found which were believed 
to attack the curculio grubs, although known to be general feeders, 
namely, Harpalus pennsylvanicus De Geer (fig. 32), H. f annus Say, 
Fig 32.— HarpoitU p t nntylvankus, B ground beetle predatory upon the plum curculio. ^From Webster.) 
