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Photo#430759
Leaf beetle? - Chrysomela crotchi - male - female

Leaf beetle? - Chrysomela crotchi - Male Female
near Denbeigh about 20 miles east of Minot., Ward County, North Dakota, USA
July 22, 2010
Size: 9mm female 7mm male
Found mating and feeding on poplar trees.

Images of this individual: tag all
Leaf beetle? - Chrysomela crotchi - male - female Leaf beetle? - Chrysomela crotchi - male - female Leaf beetle? - Chrysomela crotchi Leaf beetle? - Chrysomela crotchi Leaf beetle? - Chrysomela crotchi Leaf beetle? - Chrysomela crotchi Leaf beetle? - Chrysomela crotchi Leaf beetle? - Chrysomela crotchi Leaf beetle? - Chrysomela crotchi

Moved tentatively -- must be Ch. crotchi, NEW TO BG!
will seek confirmation, but in any case it's something never posted before. thanks again, Lonny -- keep up the fantastic work; you've already put ND on the BG map like nobody before you, no kiddin'.

Moved from ID Request.

 
ID confirmed by S.M. Clark: Ch. crotchi

 
Thanks for the ID!
As well as many other ID's, and for the compliment.

Chrysomela -- dunno which one, sorry
*

 
Poplar leaf beetle!
Chrysomela populi thanks for the help!

 
not sure
i grew up in a place where Ch. populi was arguably the most commonly seen large chrysomelid, and i've seen thousands and thousands of them, but the pronotum was invariably green/blue metallic rather than black. that was, of course, in the eastern hemisphere. there are two other relatively common Palaearctic spp. with all-red elytra and uniformly dark (also metallic) pronota, and remember well how they look.
i'm not even sure any of them occur on this continent at all -- don't see any records in Canada or New England, which would be the most likely places such an invasion might be reasonably expected to start.

 
The pronotum were metallic green.
apologies for not mentioning this. Sadly I can't always get my camera to pick up the colors of insects as I would like. I assume this is because the colors in most metallic looking insects are as I understand not really pigmented, but just that color because of how they reflect light.

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