Amblyopone oregonensis
Northern Sierra Nevada, California, USA

photograph © Alex Wild 2004

Amblyopone oregonensis is found primarily in old-growth forests of western North America.  The extensive colonies of this species require large rotting logs, increasingly rare under current logging practices.  Here a worker is seen foraging in an old Pseudotsuga log.  

USA CA, Plumas Co.: 8km NW Quincy  40º00'N 120º59'W, 1030m
Pseudotsuga forest, ex large rotting log.
#AW2375, voucher specimens in ALWC and MHNG.

This image is copyrighted by the photographer and cannot be used without permission. To obtain permission to use this image, please email Alex Wild. (alwild (at)  Most of the photographs on are reduced from their original size and compressed for more efficient web transmission.  In some cases, higher quality versions are available.

This image was captured with a Canon EOS D60, with a Canon 65/2.8 MPE 1-5x Macro lens.