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Title: THE NEMATUS "MAGUS GROUP" (HYMENOPTERA: TENTHREDINIDAE) IN NORTH AMERICA

Author
item Smith, David R

Submitted to: Proceedings of the Entomological Society of Washington
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 1/24/2004
Publication Date: 12/7/2004
Citation: Smith, D.R. 2004. The Nematus "magus group" (Hymenoptera: Tenthredinidae) in North America. Proceedings of the Entomological Society of Washington. 106: 592-597

Interpretive Summary: The caterpillarlike larvae of sawflies, or plant-feeding wasps, cause millions of dollars of damage annually to agricultural crops, forests, and ornamental plants. A new species was discovered from the forests of the central and southern Appalachians which is related to a willow-feeding species of northeastern United States and Canada. The two North American species are described and illustrated, and a key is provided to distinguish them. They are also compared with two related European species. This will be useful to scientists, forest service personnel, and nursery personnel dealing with willow as ornamental plants.

Technical Abstract: Two species are recognized in the Nematus "magus group" in North America. Nematus magus (Marlatt) on Salix sp. from eastern Canada and northeastern United States west to Northwest Territories and British Columbia and Nematus appalachia, new species, from the Appalachians of West Virginia, Tennessee, and North Carolina. The species are described, keyed, and compared to Palearctic species.