Cimbicid sawfly larva (Trichiosoma triangulum) feeding on subalpine willow. Pedley Pass, British Columbia, Canada. (Copyright © Bryan Kelly-McArthur).
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10 THINGS YOU DIDNT KNOW ABOUT GLENN DANZIG:
1. First successful homunculus.
2. Emerged from the egg with a tail and worshipped in India.
3. Burrows his head under sand when frightened.
4. Sweats milk.
5. Enjoys mulch.
6. Is rumored to be a fan of neo-Babylonian ruler Nebuchadnezzar II.
7. Little Miss Texas children's beauty pageant reigning champion.
8. Virgin.
9. Breeds Cimbicid sawfly larvae.
10. Follows the Mayan Tzolkin calendar religiously.
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7/26/17 Species americana (Elm Sawfly) New data point for Ky!
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Symphyta" - Sawflies, Horntails, and Wood Wasps)
Family Cimbicidae (Cimbicid Sawflies)
Genus Cimbex
Species americana (Elm Sawfly)
Explanation of Names
Cimbex americana Leach 1817
Size
adult 18-20 mm, larva up to 50 mm
Identification
The largest North American sawfly. Larvae yellowish-white with black dorsal stripe. While feeding, the larvae usually coil their posterior around a leaf or twig. At rest the larvae roll into a characteristic tight coil. The larvae spin tough, papery cocoons in the litter or just below the surface of the soil. Pink coloration is not common, most larvae are green to yellow in color.
Adult has glabrous thorax with white/yellow spot above, orange antennae. Females commonly have a yellow banded abdomen.
Range
most of NA (map)
Habitat
woodlands
Season
adults May-Jun(1)
Food
hosts include elm (Ulmus), maple (Acer), birch (Betula), willow (Salix), and basswood (Tilia); adults girdle bark on twigs
Life Cycle
Larvae have chemical defenses, ejecting fluids from glands near spiracles; often coil hind end around twigs; overwinter in cocoons, and pupate in spring .Remarks
not considered a forestry problem, but can defoliate shade/ornamental elms and willows
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Cimbicid sawfly larva (Trichiosoma triangulum). Port Alberni, Vancouver Island, British Columbia, Canada. (Copyright © Libby & Rick Avis).
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Cimbicid sawfly larva (Trichiosoma triangulum). Port Alberni, Vancouver Island, British Columbia, Canada. © Libby & Rick Avis.
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