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Photo#164437
Anomala innuba

Anomala innuba
Oklahoma County, Oklahoma, USA
July 4, 2007
Size: 7 to 8 mm
Variation in Anomala innuba. A friend collected a series of 10 individuals this summer at UV light. Pictured above is how much the markings on the elytra varied, from strongly marked to not marked. All individuals fell within seven to eight millimeters. I can upload the individual images if needed.

Keyed using Potts 1977.

Pott's
key works surprisingly well, but I sure wish someone could put together an illustrated guide complete with genitalia, they're diagnostic and often easier.

 
Interesting
I've been told that Anomala genitalia are not as clear for diagnosis (compared to other scarabs). Even Potts says that genitalia are not that helpful due to variation.

I agree, a nice modern revision with an illustrated guide would be wonderful. I have about 10 or 11 of our species and hopefully I'll get around to posting some of those.

 
Urban legend
That seems to be the prevailing view, but I don't know why. All good modern revisions of Anomalines I've seen include genitalia. I examined them for the SC species [and illustrated a couple] and they seem very useable - certainly better than Diplotaxis or Polyphylla. You may want to try it and see what you think.

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