. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. green, the hrgc warts or tubeicles on the top of the third and fourth seinnents are cnriil red, the remainder are yellow oxccptini; those ou the second imd terniimd sejiments, which, in common with the smaller tnbercles along the sides, arc blue. During its growth from the diminutive creature as it escapes from the egg to the monstrous-looking full grown sjiccimen, it consumes an immense amount of vegetable food ; and especially as it ajiproaches maturity is this voracious appetite apparent. Where
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. green, the hrgc warts or tubeicles on the top of the third and fourth seinnents are cnriil red, the remainder are yellow oxccptini; those ou the second imd terniimd sejiments, which, in common with the smaller tnbercles along the sides, arc blue. During its growth from the diminutive creature as it escapes from the egg to the monstrous-looking full grown sjiccimen, it consumes an immense amount of vegetable food ; and especially as it ajiproaches maturity is this voracious appetite apparent. Where one or two have been placed on a young apple tree, they will often strip it entirely hare before they have done with it, and tlius prevent the proper ripening of the wood entailing damage to the tree, and, sometimes, cndangerini; its lile ; hence, during their season, tliey should be watched for and di'stroyed. During the winter months, their cocoons may be looked for, and removed in time to check their lurther 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 wliich attack the egg and young larva; and besides these there are severd parasites which live within the body ot the caterpillar and destroy it before reaching maturity. One of the largest of these parasites is the lona; tailed Ophion (Op/lion macrurum, Linn.) Fig. 20 (after Riley). This is a lariic lirown Ichneumon Yg 20 fly. ^id is perhaps one of the commonest parasites .affect- ing the cecropia. The female ol this fly depo.^^its, ac- cording to Mr. Trouvelot, from eight to ten eggs U|ion the skin of her victim. These eggs soon hatch into yoiini; larvre which their way through the skin the caterpillar, and at once begin to feed upon the fatty parts within. As only one of these parasitic larv» can find food sufficient to matu
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsectp, bookyear1872
