elm sawfly, Cimbex americana  (Hymenoptera: Cimbicidae) - 9009060

elm sawfly
Cimbex americana Leach

Descriptor: Larva(e)
Description: The elm sawfly is not considered a problem in forest situations, but can be a defoliator of shade and ornamental elm and willow trees. The elm sawfly is the largest North American sawfly with larvae reaching a length of almost two inches. The larvae pictured here were found feeding on an American elm tree in Bastrop, Texas (near Austin, TX) on May 2, 2002. Larvae are a yellowish-white color and possess a 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.
Image type: Field
Image location: United States

Photographer Information

Name: Herbert A. 'Joe' Pase III
Organization: Texas Forest Service
Country: United States

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Image Number: 9009060

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Image Citation:(?) Herbert A. 'Joe' Pase III, Texas Forest Service, Bugwood.org

Node Affiliation: University of Georgia

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Image uploaded on Monday, November 17, 2003
Image Information last updated on Thursday, June 28, 2007