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fall webworm side-by-side

fall webworms

Two color races of fall webworm coexist throughout the species’ range. The race with pure white moths and black-headed caterpillars predominates in the northern part of the range. The southern portion of the species range is dominated by the race with spotted moths and red-headed caterpillars. (Photo credit: Gerald J. Lenhard, Louisiana State University Agricultural Center, Bugwood.org)

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