Striped beetle - Trirhabda virgata - 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) » Skeletonizing Leaf Beetles and Flea Beetles (Galerucinae) » Galerucini » Section Coelomerites » Trirhabda » Trirhabda virgata

Photo#7857

Copyright © 2004 Beatriz Moisset

Striped beetle - Trirhabda virgata

Pennypack Restoration Trust, Montgomery County, Pennsylvania, USA
June 27, 2004

At first I thought that it was a striped cucumber beetle, but now I don't think so and I have no idea what it is.
Southeastern PA

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Contributed by Beatriz Moisset on 11 October, 2004 - 9:34am
Last updated 19 December, 2018 - 10:59am

probably Trirhabda virgata LeConte -- det. S.M. Clark

Moved from Trirhabda.

… v belov, 15 November, 2010 - 11:39am

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Plant

Beatriz provided two additional photos with wider views of the plant, which I identify (based on hairy stem and dense, bracteose umbel) as Queen Anne's Lace (Daucus carota), a.k.a. Wild Carrot (in Apiaceae). Daucus is not listed as a host plant for Trirhabda on the BG Info Tab, although it does mention "weedy fields" in the habitat description, a typical setting for Queen Anne's Lace. Other plants mentioned by Beatriz as associated with Daucus at this locality include knapweed (Centaurea) and yarrow (Achillea), again typical of a weedy field; these are in the aster family (Asteraceae), which is broadly mentioned as containing food plants utilized by Trirhabda.

… John Pearson, 5 January, 2010 - 10:57am

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Chrysomelidae: Trirhabda

Chrysomelidae: Trirhabda, perhaps. Pronotal shape looks correct, a little spiny projection in middle. Antennae also yellow-and-black.

Compare Dillon (1), plate LXXI #5-7: T. virgata, bacharidis, canadensis. Insects of Cedar Creek, North Dakota State University: Trirhabda canadenis, T. borealis

I thought this was a Disonycha at first, but pronotum and antennae look wrong. I think the genus Trirhabda looks good. Cute little critters.

Patrick Coin
Durham, North Carolina

… Cotinis, 11 October, 2004 - 10:38pm

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Chrysomelidae

Thanks Patrick, you are always so helpful!

… Beatriz Moisset, 12 October, 2004 - 9:01am

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