Canadian Forest Service Publications

Sawflies (Hymenoptera, Symphyta) newly recorded from Washington State. 2016. Looney, C.; Smith, D.R.; Collman, S.J.; Langor, D.W.; Peterson, M.A. Journal of Hymenoptera Research 49:129-159.

Year: 2016

Available from: Northern Forestry Centre

Catalog ID: 36795

Language: English

CFS Availability: PDF (download)

Available from the Journal's Web site.
DOI: 10.3897/JHR.49.7104

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Examination of museum specimens, unpublished collection data, and field surveys conducted between 2010 and 2014 resulted in records for 22 species of sawflies new to Washington State, seven of which are likely to be pest problems in ornamental landscapes. These data highlight the continued range expansion of exotic species across North America. These new records also indicate that our collective knowledge of Pacific Northwest arthropod biodiversity and biogeography is underdeveloped, even for a relatively well known and species-poor group of insects. Notable gaps in the knowledge of Washington State’s Symphyta remain for the Olympic Peninsula, the Cascade Mountain Range, and the arid interior of the state. Washington’s shrub-steppe appears to be particularly poorly surveyed for sawflies.

Plain Language Summary

This paper reports new records of 22 species of plant-feeding sawflies found in Washington State for the first time, based on surveys conducted from 2010 to 2014. Many of these were non-native, invasive species that are continuing to expand their range. Seven of these species are likely to be pest problems in ornamental trees, shrubs and flowers. Documenting these species, where they are found, and their host plants creates awareness of potential problems among the public, nursery growers, and pest managers.

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