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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 » Leptinotarsa » False Potato Beetle (Leptinotarsa juncta)
Photo#199875
Nasty hunched little spotted grubs found clustered on thistle plants - Leptinotarsa juncta
Copyright © 2008 J. Brooke Chao

Nasty hunched little spotted grubs found clustered on thistle plants - Leptinotarsa juncta
Harrisonburg, Rockingham County, Virginia, USA
July 10, 2008
Size: About 1/4"
I found these grubs clustered on several thorny thistle-like plants in our border. Wasn't sure if they're something beneficial or harmful. Any help?
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Contributed by J. Brooke Chao on 10 July, 2008 - 2:16pm
Last updated 1 November, 2008 - 9:57pm

Moved
Moved from Leaf Beetles.
… John R. Maxwell, 1 November, 2008 - 9:57pm login or register to post comments

You guys are right!
So it is a false potato beetle larvae. Is this something I should try to control, or just let be? They seem pretty isolated to these weeds, but I'd hate for them to eat the milkweed next to them, as I'm hoping to some Monarch larvae will be on those at some point this summer.
… J. Brooke Chao, 10 July, 2008 - 2:56pm login or register to post comments

 
Not to worry. They will only
Not to worry. They will only feed on Solanum and wont touch your milkweeds.
… John R. Watts, 26 August, 2008 - 7:58am login or register to post comments

leaf beetle larvae
you will find more on weed control sites, i guess
… v belov, 10 July, 2008 - 2:34pm login or register to post comments

 
The plant looks more like a Solanum
and the larvae are likely to be Leptinotarsa in the guide here
… john and jane balaban, 10 July, 2008 - 2:40pm login or register to post comments

 
right on, thnx!
this one is a perfect match
… v belov, 10 July, 2008 - 2:51pm login or register to post comments

 
Thanks!
Wow that is a perfect match!
… J. Brooke Chao, 10 July, 2008 - 3:30pm login or register to post comments

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