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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Scarabaeoidea » Scarab Beetles (Scarabaeidae) » May Beetles and Junebugs (Melolonthinae) » Dichelonychini » Dichelonyx » Dichelonyx vicina
Photo#731183
Pine Chafer - Dichelonyx vicina
Copyright © 2012 Aaron Schusteff

Pine Chafer - Dichelonyx vicina
Cedar Grove, Kings Canyon National Park, Fresno County, California, USA
June 6, 2010
Adding this 5th image, as the shape of the hind-tibial spur is diagnostic in a number of couplets in Fall's 1901 key to species, starting at couplet 7.

I'm interpreting the hind-tibial spurs here to be trunctate and not distinctly contorted...though the latter is hard to clearly discern. If this is a male, that would eliminate candidates pusilla and lateralis, leading to D. valida...at least according to my best efforts to interpret Fall's key and my photos.

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Pine Chafer - Dichelonyx vicina - male Pine Chafer - Dichelonyx vicina Pine Chafer - Dichelonyx vicina Pine Chafer - Dichelonyx vicina Pine Chafer - Dichelonyx vicina
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Contributed by Aaron Schusteff on 16 December, 2012 - 11:32pm
Last updated 19 December, 2012 - 12:17am

Moved
Moved from Dichelonyx.
… Aaron Schusteff, 19 December, 2012 - 12:17am login or register to post comments

Moved
Moved from Beetles.
… Aaron Schusteff, 17 December, 2012 - 12:23am login or register to post comments

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