Utah-Coleo - Gastrophysa cyanea - BugGuide.Net

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Leaf Beetles (Chrysomelidae) » Chrysomelinae » Chrysomelini » Chrysomelina » Gastrophysa » Green Dock Beetle (Gastrophysa cyanea)

Photo#399758

Copyright © 2010 Kerry S. Matz

Utah-Coleo - Gastrophysa cyanea

City Creek Canyon, Salt Lake City, Salt Lake County, Utah, USA
May 22, 2010
Size: ca. 5mm

Suggestions appreciated. Found on Isatis tinctoria (Dyer's Woad).

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Contributed by Kerry S. Matz on 23 May, 2010 - 5:10pm
Last updated 24 May, 2010 - 8:12pm

Moved

Moved from Galerucini.

… Kerry S. Matz, 24 May, 2010 - 8:12pm

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Moved

Moved from ID Request.

… Kerry S. Matz, 23 May, 2010 - 7:22pm

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Trirhabda?

I am definitely not an expert, but I wonder if this larva might be in the genus Trirhabda; it looks familiar to me it only because I compiled numerous photos of larvae and adults in the BG gallery last winter by host plant. During that compilation, it appeared that western species of Trirhabda tended to be found on a handful of host plants, among them Brittlebush (Encelia), Baccharis (Baccharis), Sagebrush (Artemisia), and Rabbitbrush (Ericameria/Chrysothamnus). Isatis tinctoria is a mustard that did not show up during that compilation. Do you recall if there were any plants of brittlebush, baccharis, sagebrush, or rabbitbrush near this mustard? Perhaps it strayed from a nearby plant of one of those onto the mustard in your photo? - just a guess!

… John Pearson, 23 May, 2010 - 7:20pm

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Others...

were found on a number of Isatis plants. A number of other plants species are in the community including sagebrush. This beetle

was abundant on other plants, Arrowleaf seemed to be favored, although no adults were found on Isatis.

… Kerry S. Matz, 24 May, 2010 - 1:59pm

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After reviewing...

the samples, it was apparent that Rumex crispus was interspersed among the Isatis at this roadside locale. For now, I'm assuming that this is a Gastrophysa larva. Next site visit might reveal more information.

… Kerry S. Matz, 24 May, 2010 - 8:11pm

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leaf beetle, i'm thinking Galerucini

… v belov, 23 May, 2010 - 6:44pm

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