Boidae

Three-lined Boa

Lichanura trivirgata

Nonvenomous
Three-lined Boa
(c) Bill Levine, some rights reserved (CC BY) · CC BY 4.0 · Image source ↗Displayed copies may be resized; the full image is preserved.

A closer look

The Desert Rosy Boa moves through rocky desert country, sheltering in cracks and beneath cover. Lengthwise stripes run along its stout body. It is a constrictor that takes small mammals and other vertebrate prey, and activity changes with the season and temperature.

Habitat
Desert scrub, chaparral, rocky slopes, and canyon bottoms
On the menu
Small mammals, birds, and lizards
Behavior
A constrictor that uses cover, climbing, or ambush rather than pursuit.
Observe without handling

Not considered venomous to people. Observe without handling, and never corner or relocate a wild snake.

Safety & bite guidance ↗
Listen to this snake’s field note ↗

Where it is listed

A sense of place.

2 jurisdictions
Three-lined Boa: jurisdiction presenceHighlighted jurisdictions: Arizona, California. This map shows checklist presence, not local occurrence.ALASKAHAWAIITERRITORIESPR · VIGU · AS · MP
Source-listedProvisionalNo record in this snapshot

Checklist presence only. A highlighted state is not a local range boundary. Territory tiles are schematic.

State & territory checklist

About continuous range data

A verified habitat-model layer is not available for this species in this release. Earlier broad sketches connected jurisdiction locations; they did not show measured occurrence or USGS habitat predictions.

Use USGS distribution resources ↗ for available modeled habitat data.