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Species Pristiphora erichsonii - Larch Sawfly

Pristiphora erichsonii Pristiphora erichsonii Pristiphora erichsonii  - Pristiphora erichsonii Pristiphora erichsonii  - Pristiphora erichsonii Pristiphora erichsonii  - Pristiphora erichsonii Pristiphora erichsonii  - Pristiphora erichsonii Pristiphora erichsonii  - Pristiphora erichsonii
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Symphyta" - Sawflies, Horntails, and Wood Wasps)
Family Tenthredinidae (Common Sawflies)
Subfamily Nematinae
Tribe Nematini
Genus Pristiphora
Species erichsonii (Larch Sawfly)
Explanation of Names
Pristiphora erichsonii (Hartig 1837)
Range
native to the Palaearctic, adventive and widespread in NA (transcontinental in the north, south to NC in the east)
Season
eggs laid in incisions on twigs in late May-Jun(1)
Food
Larvae feed on Larch (Larix)
Life Cycle
larvae overwinter in cocoons on ground(1)
Remarks
earliest record in our area: 1880[cite:]
repeated defoliations make trees susceptible to deadly attacks by Dendroctonus simplex(2)
Internet References
Leaflet (USDA Forest Service 2001)
Brochure (Yukon Forest Health)
Fact sheet (Plantwise)
Works Cited
1.Diseases and pests of ornamental plants, 5th Edition
Pirone P.P. 1978. Wiley, 584 pp.
2.Forest and shade tree entomology
Anderson R.F. 1960. Wiley. 428 pp.