Insect with long neck—what is it?
That appears to be a species of snakefly and the lack of a long needle-like ovipositor indicates that this specimen is a male.

The "kite" rather than rectangular head shape suggests it is in the Raphidiidae.

From the location I think it could be in the genus Agulla and might be the Idaho Snakefly (Agulla adnixa), but I don't know if that is the only species from this group in that area. 

Reference image (Copyright © 2007 by Hartmut Wisch) from BugGuide.net: