Snake FinderField Guide · Worldwide

Tell them apart

Louisiana Pinesnake vs. Red Diamond Rattlesnake

It matters: the Red Diamond Rattlesnake is venomous, while the Louisiana Pinesnake is harmless.

Louisiana Pinesnake

Louisiana Pinesnake

Pituophis ruthveni

Harmless
Family
Colubridae
Group
Gophersnake / Bullsnake
Size
Large, 4–7 ft.
Identify
Large, blotched, with a slightly pointed snout and keeled scales — no rattle.
Red Diamond Rattlesnake

Red Diamond Rattlesnake

Crotalus ruber

Venomous
Family
Viperidae
Group
Rattlesnake
Size
Typically 2–5 ft; some species exceed 6 ft.
Identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.

How to tell them apart

Gophersnakes and bullsnakes mimic rattlesnakes by hissing and vibrating the tail, but they are harmless and have no rattle.

Never rely on a single feature to judge a live snake. If you cannot positively identify it, keep your distance. Informational only.