Size
Adult about 25 mm, not including antennae.
Identification
Black with broad blue-white stripes across elytra. Pronotum white with a black spot in the center. Very long antennae alternately banded black and white.
Range
Western United States plus British Columbia and Alaska.
Food
Larvae feed in dead hardwood trees: maple, alder, oak, willow, etc.
See Also
Asian Longhorn Beetle is superficially similar but a non-native pest species.
Internet References
news.cornell.edu Story of a banded alder borer attracted to fresh paint. Apparently a common occurrence.
distribution in Canada and Alaska; PDF doc list (J. McNamara, Cerambycidae,
in Checklist of Beetles of Canada and Alaska)
