Insects injurious to fruits . much magnified ; the short lines at the side show its naturalsize. A fourth friendly helper is an Ichneumon fly, knownunder the name of theCecropia Cryptus, Cryptusextrematis Cresson, whichinfests the Cecropia larvain great numbers, filling itschrysalis so entirely withits thin, papery cocoonsthat a transverse sectionbears a strong resemblanceto a piece of honey-comb.(See Fig. 76.) The flies ofthis parasite escape in June,the female presenting theappearance shown in , where it is much mag-nified, the short line at the side showing its natural tw
Insects injurious to fruits . much magnified ; the short lines at the side show its naturalsize. A fourth friendly helper is an Ichneumon fly, knownunder the name of theCecropia Cryptus, Cryptusextrematis Cresson, whichinfests the Cecropia larvain great numbers, filling itschrysalis so entirely withits thin, papery cocoonsthat a transverse sectionbears a strong resemblanceto a piece of honey-comb.(See Fig. 76.) The flies ofthis parasite escape in June,the female presenting theappearance shown in , where it is much mag-nified, the short line at the side showing its natural two-winged parasite is Gaurax anchora Loew. While very partial to the apple, the larva of Cecropia willalso feed on the cherry, plum, pear, maple, willow, lilac, Eng-.
Size: 1348px × 1854px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidin, booksubjectinsectpests
