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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Longhorn Beetles (Cerambycidae) » Cerambycinae » Clytini » Xylotrechus » Spruce Zebra Beetle (Xylotrechus undulatus)
Photo#1921225
Xylotrechus - Xylotrechus undulatus
Copyright © 2020 Libby & Rick Avis

Xylotrechus - Xylotrechus undulatus
Alberni Valley - McLean Mill, Vancouver Island, British Columbia, Canada
August 23, 2020
Unsure if this is X. undulatus or longitarsis - or if longitarsis is a subspecies of undulatus.
The New World Cerambycidae Catalogue has longitarsis listed under undulatus, but I don't know if that means it's considered to be a subspecies or a synonym. Bug Guide has them listed as separate species.

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Xylotrechus - Xylotrechus undulatus Xylotrechus - Xylotrechus undulatus Xylotrechus - Xylotrechus undulatus
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Contributed by Libby & Rick Avis on 3 December, 2020 - 3:53pm
Last updated 5 December, 2020 - 10:18am

Moved
Moved from Long-horned Beetles.
… v belov, 5 December, 2020 - 10:18am login or register to post comments

Xylotrechus undulatus again...
Your information about the Cerambycidae Catalog made me curious - I hadn't seen that change - so I checked the likely source, and sure enough, X. longitarsis has again been synonymized under X. undulatus. This change was proposed in the recent 'Cerambycidae of Canada and Alaska' by Bousquet, et. al.

I've never been able to separate these two forms other than by locality so this change is certainly welcomed by me!
… Robert Androw, 3 December, 2020 - 9:15pm login or register to post comments

 
Thank-you for clarifying it!
Libby
… Libby & Rick Avis, 5 December, 2020 - 3:02pm login or register to post comments

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