. Annual report of the Nebraska State Horticultural Society. Horticulture -- Nebraska. PARASITISM 135 have been discussed and Lhere being no new items of special interest, we may pass to the consideration of the parasites of adult or mature insects. AVhile in the larval and pupal stage the insects are largely unpro- tected and fall easy prey to the designing parasites, thus is not the case with the adult nsects. As a rule the mature insect is much more active and capable of self-protection. In addition to this the hairy covering of the body and the large wings of our moths and butterflies serv
. Annual report of the Nebraska State Horticultural Society. Horticulture -- Nebraska. PARASITISM 135 have been discussed and Lhere being no new items of special interest, we may pass to the consideration of the parasites of adult or mature insects. AVhile in the larval and pupal stage the insects are largely unpro- tected and fall easy prey to the designing parasites, thus is not the case with the adult nsects. As a rule the mature insect is much more active and capable of self-protection. In addition to this the hairy covering of the body and the large wings of our moths and butterflies serve as complete protection, £o that none of these are parasitized. In the case of the beetles the body is covered by shields or hard wing-covers which, with few exceptions, serve as efficient armor. The bees, wasps, and flies de- pend to a large extent upon their activity in avoiding their enemies. The and the true bugs or "stink-bugs" have the tough leathery overlapping f\nich ward off all but a few of the more bold and persistent parasites. In spite of all these difficulties parasitism does occur to some extent during this stage-, ana, although the parasites are few in number, they are scattered through several different groups. Among the flies parasitic upon adult insects we have only a few belonging to the Tachinid family which has already been discribed as composed of bristly flies with the bristles on the antennae smooth instead of feathery. The most notable example is the beautiful little fly that is parasitic on our common squash-bug. Some of the Sarcopliagidae or flesh-flies are parasitic upon bettles and grasshoppers. When a grass- hopper starts to fly one or more of these insects dart after it and, if successful, deposit eggs on the unprotected body between the wings. These hatch and the larvae penetrate the body of the host. Although these flies closely resemble both the house-fly and the Tachinids still they may be recognized by the somewhat
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