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western black widow

Latrodectus hesperus

Classification

Order
Araneae

Latrodectus hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. This "hourglass" mark can be red, yellow, and on rare occasions, white.

Distribution

(c) Luke Padon, some rights reserved (CC BY), uploaded by Luke Padon · CC-BY
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Countries in the Picchu catalog
United States of America · 9,913Canada · 1,086Mexico · 814