Chaetocnema Concinna on:
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''Chaetocnema concinna'', known generally as the brassy flea beetle, is a species of flea beetle in the family 
Chrysomelidae
The insects of the beetle family Chrysomelidae are commonly known as leaf beetles, and include over 37,000 (and probably at least 50,000) species in more than 2,500 genera, making up one of the largest and most commonly encountered of all beetle ...
. Other common names include hop flea beetle, beet flea beetle, and brassy-toothed flea beetle. It is found in Europe and Northern Asia (excluding China) and North America.
References
Further reading
* * * * * Alticini Beetles described in 1802 Taxa named by Thomas Marsham {{Galerucinae-stub