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Posted on October 4, 2012 with No Comments
The purpose of overwintering is to create or find warmth in order to survive the cold. In overwintering, the insect goes into diapause, in which its development and growth is halted. The insect either has means of avoiding the cold or it undergoes physiological or biochemical changes to survive it, until a specific period passes or the insect begins to sense the lengthening days of spring.
Instead of surviving the winter winds in place, however, some insects head to more conducive lands through migration. Some insects, such as the Monarch butterfly, cannot survive the harshness of winter, thus it makes its annual migration south to spend the winter in warmer temperatures, then return to its northern homeland when the weather eases in the spring.
Although most insect remain in their shelters until spring, insects that chose the shelter of a home’s eaves, siding, cracks or crevices will often emerge into the warmth of the home at various times throughout the winter.