Dendroctonus brevicomis work on the surface of sapwood.

Note:

- This image was used for Figure 58 on page 134 in F.P. Keen's 1952 Insect Enemies of Western Forests. The caption reads, "Typical winding egg galleries of the western pine beetle marking the surface of ponderosa pine sapwood." See: <a href="https://archive.org/stream/insectenemiesofw273keen_1#page/134/mode/2up" rel="nofollow">archive.org/stream/insectenemiesofw273keen_1#page/134/mod...</a>

- It was also used for Figure 213 on page 350 in: Furniss R.L. and V.M. Carolin. 1977. Western forest insects. US Department of Agriculture, Forest Service. See: <a href="https://archive.org/stream/westernforestins1339furn#page/350/mode/2up" rel="nofollow">archive.org/stream/westernforestins1339furn#page/350/mode...</a>

Photo by: F.P. Keen Date: October 1926

Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Collection: Bureau of Entomology and F.P. Keen Collections; La Grande, Oregon. Image: FPK-268 and BUR-6800

To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of forest insect investigations on the Pacific Slope, 1903-1953. Part 2. Oregon and Washington. American Entomologist, 48(3), p. 178-185.

For additional historical forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: <a href="http://wfiwc.org/content/history-and-resources" rel="nofollow">wfiwc.org/content/history-and-resources</a>

Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: <a href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth" rel="nofollow">www.fs.usda.gov/main/r6/forest-grasslandhealth</a>

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