. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 38 curling themselves up, remain torpid until the following spring. When spring returns, they are quite ravenous, and their cutting propensities having fully developed, they ascend to the surface and attack the first green succulent vegetation that comes in their way. When full grown they descend deeper into the earth, and form for themselves oval chambers, in which they change to chrysalids. In this state they remain from two to four weeks, and finally come forth during June, July and
. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 38 curling themselves up, remain torpid until the following spring. When spring returns, they are quite ravenous, and their cutting propensities having fully developed, they ascend to the surface and attack the first green succulent vegetation that comes in their way. When full grown they descend deeper into the earth, and form for themselves oval chambers, in which they change to chrysalids. In this state they remain from two to four weeks, and finally come forth during June, July and August as moths, the chrysalis skin, being in most cases so thin, that it is impossible to preserve it. These moths in time lay eggs, and their progeny goes through the same cycle of ; The worms vary in size and markings, but they are all smooth, naked, and greasy looking, and are of some shade of green, grey, brown or black, with a polished, scaly head, and a shield of the same colour on the top of the first and last segments; while most of them have several minute shiny spots on the other segments, each spot giving rise to a minute stiff hair. They also have the habit of curling up when disturbed. The moths are of sombre colours, and fly generally at night, often entering lighted rooms, even in large cities. The upper wings always have two more or less distinctly marked spots, one round, the other kidney-shaped, and the lower wings are generally grey or white, without spots. The history of American Cut-worms has engaged the attention of some of our best entomologists:—Fitch, Harris and Riley, amongst others, have studied them closely; the last mentioned, however, being the only one who has fully surmounted the natural diffi- culties in the way of rearing the larvae, caused by their restless and peculiar habits. In the Report already quoted, Mr. Riley has given the life history of ten species, all of which are found in Canada, and as a knowledge of the habits of
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
