Northern Winter Moth Operophtera fagata (Scharfenberg, 1805) kingdom Animalia - animals » phylum Arthropoda - arthropods » class Insecta - insects » order Lepidoptera - butterflies and moths » family Geometridae - geometer moths » genus Operophtera Individual records comprise of: [1476 Adult] [1 Dead] [43 Larval] . The Winter Moth caterpillar has been defoliating deciduous plant material at an alarming rate. It has been moving to new areas of these countries, where it was formerly precluded by cold winter temperatures, again because of global climate change. To attract a mate, the female will crawl up a tree trunk and give off pheromones. There are 637 county records of 1520 individuals from 118 different sites. It was first recorded in Nova Scotia in the 1930s and then in the Pacific Northwest (British Columbia, Oregon and Washington) in the 1970’s. In recent decades, outbreak populations of winter moth have occurred in northern Norway, Sweden and Finland. Male Northern winter moths tend to have paler, shinier wings than the Winter moth and the hind wings often peak-out from under the forewings. The female Northern winter moth is again flightless but has longer wings than the female Winter moth (at least half the length of the … Northern Winter Moth Operophtera fagata (Scharfenberg, 1805) Wingspan 32-40 mm. The Winter Moth is one of the few moth species that is active in its adult stage over the winter months, and it is able to cope with freezing temperatures. Winter moth (Operophtera brumata) originated in Europe, and came to BC in the 1970s. Winter moth caterpillars that escape being fed to nests of tits and other insectivorous birds during the spring will feed until mid-summer, before dropping to the ground to pupate. Winter moth was introduced into North America from Europe. Female Northern Winter Moth Operophtera fagata Source: Here lovingexotics . Winter moth was initially introduced from Europe to North America via Nova Scotia in the 1930’s, where in the 1950’s it became a serious pest in parts of eastern Canada (Nova Scotia and Prince Edward Island). The male moths of both species are rather modest in colour, i.e., grey and brownish beige, while … It was then introduced separately to western Canada around 1970, where it became a problem in Vancouver, British Columbia. To combat winter moths, two non-indigenous parasites … The larvae, smooth green ‘inchworms’ about ¾” long, hatch in spring and can cause serious damage to emerging leaves if not controlled; after three years of infestation the tree can become so weakened that dieback and possible mortality can occur. The Winter Moth is one of the few moth species that is active in its adult stage over the winter months, and it is able to cope with freezing temperatures.

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