Image Number: 0284050 native elm bark beetle Hylurgopinus rufipes (Eichhoff) Photographer: John A. Williams, USDA Forest Service Descriptor: Galleries Description: pattern formed in the inner bark of elm Image Citation: John A. Williams, USDA Forest Service, forestryimages.org Image Use: This image may be copied and used, in whole or in part, for any non-profit, educational purpose provided that all reproductions bear an appropriate credit. Any commercial or other use of the image requires the written permission of the photographer or contact organization, and Forestry Images.