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Cottonwood Leaf Beetle (larva instars)

Chrysomela scripta


Black larvae (probably mature) with white or yellow lateral spots along their length. Seen munching on leaves. Cottonwood leaf beetles are considered pests that consume not only cottonwood (Populus spp.), but also poplar and willow.


Seen in an alpine area with a marsh (near Primrose, Alaska). This bug is native to Central and N. Americas.


See the seeds of this beetle’s host here:

1 species ID suggestions

Brian38 a month ago
cottonwood leaf beetle larvae
Chrysomela scripta Chrysomela scripta - Wikipedia


Brian38 a month ago

Your welcome Mauna. Really cool spotting! I don't think I've ever seen them before. I'll start looking for them when summer arrives.

mauna Kunzah
mauna Kunzah a month ago

Thank you for the ID, Brian! :)

Alaska, USA

Lat: 60.34, Long: -149.35

Spotted on Jul 12, 2016
Submitted on Mar 10, 2019

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