Longicorn Beetle vs California Web Spinner

Side-by-side species comparison

Attribute Longicorn Beetle California Web Spinner
Scientific Name Phoracantha semipunctata Oligotoma moestum
Order Coleoptera Embioptera
Family Cerambycidae Oligotomidae
Size 20-30 mm body length 7.0-10.0 mm
Habitat Farmland Gardens
Diet Wood Feeders Wood Feeders
Regions Australia North America, Asia
Conservation Least Concern Not Evaluated

Longicorn Beetle

A brown and cream longhorn beetle with extremely long antennae that infests stressed eucalypts. It has become a significant invasive pest of eucalyptus plantations worldwide.

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Did You Know?

It has invaded every continent where eucalypts have been planted, including Africa, Europe, and the Americas.

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.