. Annual report. 1st-12th, 1867-1878. in finding two or three larvae inSeptember, but they were rare at that time. The only sure means knownof destroying them is to let water upon the bog for twenty-four hours., Besides the moths and their caterpillars men-tioned above, there are two other insects whichderive their nourishment from the leaves. has noticed plant-lice (Aphis) on the cran-berry-vines. A species of Cecidomyia, or closely allied genusbelonging to the family of dipterous gall-flies, hasbeen discovered by Mr. Fish attacking the following figures, reduced from sketc
. Annual report. 1st-12th, 1867-1878. in finding two or three larvae inSeptember, but they were rare at that time. The only sure means knownof destroying them is to let water upon the bog for twenty-four hours., Besides the moths and their caterpillars men-tioned above, there are two other insects whichderive their nourishment from the leaves. has noticed plant-lice (Aphis) on the cran-berry-vines. A species of Cecidomyia, or closely allied genusbelonging to the family of dipterous gall-flies, hasbeen discovered by Mr. Fish attacking the following figures, reduced from sketches madeby Mr. F. G. Sanborn, will serve to give some ideaof the transformations of this insect. The larva(b) is pinkish, and of the form indicated in the spins a cocoon (a) on the leaves apparently, andchanges wi:hin the cocoon to a chrysalis (c); d rep-resents the female, much enlarged, her body ending in a long retractilepoint; e represents the female antennae, much enlarged. It is notlikely that this insect does much Fig. 4.—Cranberry Gall-Fly. ATTACKING THE FLOWER-BUD.
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishe, booksubjectgeology
