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These cankerworms, inchworms, loopers and spanworms occur throughout North America. The fall cankerworm is also known from Montana, Colorado, Utah and California while the spring cankerworm territory extends southwards into Arkansas and Texas.
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ohioline.osu.edu/hyg-fact/2000/2558.html
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There are many cankerworms, inchworms or loopers that attack deciduous trees. The spring and fall cankerworms, linden looper and the elm spanworm are among the most common found and can cause severe damage. The larvae of this type of insect are distinguished from other defoliators by the way they travel.
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www.umanitoba.ca/afs/hort_inquiries/deciduous_ornamenta...
www.umanitoba.ca/afs/hort_inquiries/deciduous_ornamentals/cankerworm_other_loopers.html
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Also called measuring worms, spanworms, and loopers, inchworms lack appendages in the middle portion of their body, causing them to have a characteristic looping ... Many inchworms, when disturbed, stand erect and motionless on the prolegs, increasing the resemblance. Certain destructive inchworms are called cankerworms...
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encyclopedia2.thefreedictionary.com/inchworm
encyclopedia2.thefreedictionary.com/inchworm
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CANKERWORMS (Inchworms) The spring and fall cankerworms are common native pests of deciduous forest, the caterpillars are often called inchworms, measuring worms or loopers. There is only one generation a year. Damage: The caterpillars of both species appear on trees in early spring. They destroy the young leaves and buds...
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ccesuffolk.org/assets/Horticulture-Leaflets/Cankerworms...
ccesuffolk.org/assets/Horticulture-Leaflets/Cankerworms.pdf
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Damage is first noticed in early May when feeding by the tiny larvae known as "cankerworms," "loopers," "inchworms" or "measuring worms" (image) on the opening buds and expanding leaves causes the foliage to be skeletonized.
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www.maine.gov/doc/mfs/fallcank.htm
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Geometer moth - Wikipedia, the free encyclopedia
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The geometer moths or Geometridae are a family of the order Lepidoptera. A very large family, it has around 26,000 species of moths described (over 300 of which occur in the British Isles, and ove...
en.wikipedia.org/wiki/Geometer_moth
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Cankerworms are caterpillars that feed primarily on the leaves of American elms, Manitoba maple and Green ash in May and June. We often call cankerworms loopers, inchworms or measuring worms. Cankerworms spin down from trees on silken webs.
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www.winnipeg.ca/cms/bugline/cankerworms/cankerworm_info...
www.winnipeg.ca/cms/bugline/cankerworms/cankerworm_information.stm
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Loopers, cankerworms, inchworms, and tent caterpillars: all are moth larvae that voraciously feed on the foliage of live oaks and Spanish oaks. Since the caterpillars are so small and spend their time within the canopy of the tree, you initially don't know they are there.
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www.treeclinic.com/info/treeproblems/index.html
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There are numerous cankerworms, more commonly known as inchworms, which attack deciduous trees and shrubs.The spring cankerworm, Paleacrita vernata (Peck), and fall cankerworm, Alsophila pometaria (Harris), ... Many of the cankerworms and loopers spin down from the trees on a strand of silk when they are ready to pupate.
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www.uri.edu/ce/factsheets/sheets/cankerworm.html
www.uri.edu/ce/factsheets/sheets/cankerworm.html
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