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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Long-horned and Leaf Beetles (Chrysomeloidea) » Leaf Beetles (Chrysomelidae) » Chrysomelinae » Labidomera » Swamp Milkweed Leaf Beetle (Labidomera clivicollis)
Photo#348527
Beetle larva on milkweed - Labidomera clivicollis
Copyright © 2009 Beatriz Moisset

Beetle larva on milkweed - Labidomera clivicollis
Schuylkill Nature Center, Philadelphia County, Pennsylvania, USA
November 1, 2009
Size: 7-8 mm
It looks like a potato beetle larva but it was feeding on milkweed, Asclepias syriaca; at least it was passing frass. I know that some "potato beetles" feed on plants not in the Solanaceae family, but I don't know which species do that.
We have several larvae placed in L. decemlineata, but there are two different kinds, the ones with the head and neck all black like this one and the ones with a red band on the collar. I wonder whether some are misplaced. Compare:

Images of this individual: tag all
Beetle larva on milkweed - Labidomera clivicollis Beetle larva on milkweed - Labidomera clivicollis
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Contributed by Beatriz Moisset on 2 November, 2009 - 10:37am
Last updated 2 November, 2009 - 6:34pm

Thanks
Moved from ID Request.
Aha! Now things make sense. I am pretty sure that this one has only one row of dots. I still have it so I can get a better picture.
… Beatriz Moisset, 2 November, 2009 - 6:32pm login or register to post comments

Swamp Milkweed Leaf Beetle
Labidomera clivicollis

http://bugguide.net/node/view/2970

The two rows of black spots along the side on Leptinotarsa decimlineata is pretty distinct so they're probably just different color morphs.
… Natalie Hernandez, 2 November, 2009 - 12:34pm login or register to post comments

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