
Lined Snake
Tropidoclonion lineatum
A small, garter snake-like colubrid of the central United States, identified by a double row of dark half-moon belly markings.
- Venomous?
- Non-venomous
- Adult length
- 0.2-0.55 m (8-22 in)
- Range
- Central United States, from the Great Plains to the Midwest
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Overview
The lined snake is a small, secretive species of the central United States, often mistaken for a garter snake due to its similar striped pattern.
It is most reliably identified by a distinctive double row of dark, crescent-shaped markings running down its pale belly, a feature not seen in true garter snakes.
How to identify it
- Brown, gray, or olive background with a pale yellowish middorsal stripe
- Faint lateral stripes may also be present
- Distinctive double row of dark half-moon or crescent markings along the belly
- Keeled scales
- Small head barely distinct from neck
- Distinguished from garter snakes chiefly by the paired dark belly crescents
Habitat & range
Found in prairies, vacant lots, rocky hillsides, and urban gardens across the central United States from the Great Plains through the Midwest, often under rocks, logs, and debris.
Behavior, diet & reproduction
Secretive and often found under surface cover during the day, becoming active at dusk and at night. Feeds primarily on earthworms. Bears live young in late summer, with small litters typical of its small body size.
Frequently asked questions
How is the lined snake distinguished from garter snakes?
It has a distinctive double row of dark crescent-shaped markings along its belly, which garter snakes lack.
Is it venomous?
No, the lined snake is completely non-venomous.
Where does it live?
It occurs in prairies, vacant lots, and gardens across the central United States, often hiding under surface debris.
What does it eat?
It feeds mainly on earthworms found under rocks, logs, and other cover.
Lined Snake guides
In-depth guides for identifying and understanding Lined Snake.