- Adults to about 16½" in length. Color uniform olive, bluish gray, to slate gray; underside
bright yellow to orange, with numerous black spots, changing to red or reddish orange on tail.
Conspicuous yellow to orange ring around neck. Divided anal plate.
- Elevation Range:
- Below 6000' in southeastern Colorado.
- Subspecies in Colorado:
- Diadophis punctatus arnyi
Photo from Hammerson, 1986.
Used with permission.