California Web Spinner vs Eight-spotted Jewel Beetle

Side-by-side species comparison

Attribute California Web Spinner Eight-spotted Jewel Beetle
Scientific Name Oligotoma moestum Castiarina octospilota
Order Embioptera Coleoptera
Family Oligotomidae Buprestidae
Size 7.0-10.0 mm 8-13 mm
Habitat Gardens Heathland
Diet Wood Feeders Wood Feeders
Regions North America, Asia Australia
Conservation Not Evaluated Least Concern

California Web Spinner

A small introduced web spinner now established in California and other warm parts of the United States. It is commonly found in gardens and around buildings.

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Did You Know?

This species was accidentally introduced to the Americas and is now one of the few web spinners most North Americans ever encounter.

Eight-spotted Jewel Beetle

A compact jewel beetle with eight distinctive pale spots arranged on dark metallic elytra. It is an active flower visitor in spring and summer.

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Did You Know?

Despite its small size, each spot on its wing covers is perfectly symmetrical between left and right sides.