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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) » Flea Beetles (Alticini) » Chaetocnema » Chaetocnema irregularis
Photo#151618
flea beetle - Chaetocnema irregularis
Copyright © 2007 tom murray

flea beetle - Chaetocnema irregularis
Dixville, Coos County, New Hampshire, USA
October 9, 2007
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Contributed by tom murray on 12 October, 2007 - 8:32pm
Last updated 17 March, 2023 - 9:58am

valid name: C. irregularis [=subcylindrica]
no more headache with that couplet...
… v belov, 24 January, 2013 - 2:19pm login or register to post comments

Species identification!
Rob, that's great that you're getting species id's on these flea beetles!
… tom murray, 7 November, 2007 - 6:14pm login or register to post comments

Chaetocnema subcylindrica
this seems to be Chaetocnema subcylindrica. C. irregularis keys next to it in Downy and Arnett but is regularly oval instead of subcylindrical, elongate, parallel. Also C. subcylindrica has base of antennae, tibiae, tarsi black while they are yellowish brown in C. irregularis
… Rob Westerduijn, 7 November, 2007 - 10:46am login or register to post comments

Tahnks Rob
It would be great to get one of these Chaetocnema to species. C. irregularis is a good possibility.
… tom murray, 13 October, 2007 - 7:26pm login or register to post comments

 
key + checklist for New Hampshire
maybe I´ll have a try sometime; see what species are there and than try the key
… Rob Westerduijn, 15 October, 2007 - 10:07am login or register to post comments

Chaetocnema sp
looks like a species of Chaecotnema. Compare with some here
The one under irregularis looks very similar, but it´s probably safer to leave it a genus level for now
… Rob Westerduijn, 13 October, 2007 - 5:10pm login or register to post comments

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