Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . continuesto some extent onthe head ; the othersare placed on eachside of this and donot run down as far.*te. wi. a The muil segment has also two black shiny marks on its surface. The stigmataare black and the head is gray, below light shiny, and brownabove. Legs and feet of the same color as the under side ofthe body which is nearly white with a glaucous tinge. Thereare a feMr scattering hairs near the tail. This worm issmoother than the others.
Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . continuesto some extent onthe head ; the othersare placed on eachside of this and donot run down as far.*te. wi. a The muil segment has also two black shiny marks on its surface. The stigmataare black and the head is gray, below light shiny, and brownabove. Legs and feet of the same color as the under side ofthe body which is nearly white with a glaucous tinge. Thereare a feMr scattering hairs near the tail. This worm issmoother than the others. In Gortyua the antennae are crenulated in the male, and thefore wings are yellow with darker markings. The larva is dullcolored with warty spots. That of G. flavago, an Europeanspecies, feeds in the steins of thistles and the burdock, chang-ing to a pupa inside the stem. G. leucostigina attacks the colum-bine (Harris). The habits of the Dahlia and Aster stalk borer(Gortyna nitela Guenee) have been described by Mr. states that the fore wings of the moth (Fig. 241 ; a, larva)are lilac gray, speckled with minute yellow dots, with a dis-. NOCTU^ELITJE. :!11 fcinct white band running across them. The caterpillar is gen-erally of a livid or purplish brown, though varying much as todepth of shading and is darker before than behind. CkTheyoung worm hatches about the first of July and immediatelvcommences its work of destruction. It works in such a sur-reptitious manner as to be too often unnoticed till the vine isdestroyed. The plant does not generally show any signs ofdecay until the worm is about fully grown, Avhen it wilts and ispast recoveiy. This occurs about a month after the worm ishatched, and it then crawls just under the surface of the ground,fastens a little earth together around itself by a slight web andchanges to a chrysalis of a very light mahogany brown color,and three-fourths of an inch long. The moth comes forth t In-fore part of September. The careful cultu
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
