. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 23 green, the large warts or tubercles on the top of the third and fourth segments are coral red, the remainder are yellow excoptins; those on the second and terminal segments, which, in common with the smaller tnbercles along the sides, are blue. During its growth from the diminutive creature as it escapes from the egg to the monstrous-looking full grown specimen, it consumes an immense amount of vegetable food ; and especially as it approaches maturity is this voracious appetite apparent. Where o
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 23 green, the large warts or tubercles on the top of the third and fourth segments are coral red, the remainder are yellow excoptins; those on the second and terminal segments, which, in common with the smaller tnbercles along the sides, are blue. During its growth from the diminutive creature as it escapes from the egg to the monstrous-looking full grown specimen, it consumes an immense amount of vegetable food ; and especially as it approaches maturity is this voracious appetite apparent. Where one or two have been placed on a young apple tree, they will often strip it entirely bare before they have done with it, and thus prevent the proper ripening of the wood, entailing damage to the tree, and, sometimes, endangering its Hie ; hence, during their season, they should be watched for and destroyed. During the winter months, their cocoons may be looked for, and removed in time to check their further spread. The natural increase of this insect being so great, wise provisions have been made to keep it within bounds. Being such a conspicuous object it sometimes forms a dainty meal for the larger birds ; there are also enemies which attack the egg and young larvae and besides these there are several parasites which live within the body of the caterpillar and destroy it before reaching maturity. One of the largest of these parasites is the long tailed Ophion (Ophion niacrurum, Linn.) Fig. 20 (after Kiley). This is a large yellowish lirowu Ichneumon y^ J, fly, and is perhaps one of the commonest parasites affect- ing the cecropia. The female of this fly deposits, ac- cording to Mr. Trouvelot, from eight to ten eggs upon the skin of her victim. These eggs soon batch into young larva; which eat their way through the skin of the caterpillar, and at once begin to feed upon the fatty parts within. As only one of these parasitic larvae can find food sufiScient to mature, the rest ei
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsectp, bookyear1872
