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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Scarabaeoidea » Scarab Beetles (Scarabaeidae) » May Beetles and Junebugs (Melolonthinae) » Rhizotrogini » May Beetles (Phyllophaga) » Subgenus Phyllophaga (Phyllophaga Subgenus Phyllophaga) » Phyllophaga glaberrima
Photo#422296
Phyllophaga glaberrima
Copyright © 2010 roar

Phyllophaga glaberrima
Lancaster County, Pennsylvania, USA
July 5, 2010
Size: 19mm
What species it this? I think it is P. quercus. Everything matches, but I would like it confirmed.

Images of this individual: tag all
Phyllophaga glaberrima Phyllophaga, species??? - Phyllophaga glaberrima Phyllophaga, species??? - Phyllophaga glaberrima Phyllophaga, species??? - Phyllophaga glaberrima Phyllophaga, species??? - Phyllophaga glaberrima Phyllophaga, species??? - Phyllophaga glaberrima Phyllophaga, species??? - Phyllophaga glaberrima
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Contributed by roar on 6 July, 2010 - 8:39am
Last updated 8 July, 2010 - 12:10pm

Moved
Moved from May Beetles.
… Blaine Mathison, 8 July, 2010 - 12:10pm login or register to post comments

Phyllophaga
I have keyed this out as best I can with these images. I am leaning towards P. glaberrima, but I do not have comparative material, and this species is not on BugGuide yet.

Based on these images, I cannot see the presence of a second (lower) spur on the hind tibia, which supports P. glaberrima. P. quercus has a noticeable lower spur (also, P. quercus has 9 antennomeres, and this specimen clearly has 10, so P. quercus is readily ruled-out).

Evidence for P. glaberrima is as follows:
-tarsal claws not narrowly cleft
-body not setose or pruinose
-clypeus emarginate
-antennae 10-segmented
-apparent lack of lower tibial spur (could just be angle of images, however).

This is the best I can do without specimen in-hand.
… Blaine Mathison, 7 July, 2010 - 5:11pm login or register to post comments

 
Thank you
These are very common where I found it. I made a forum for the new guide page.
… roar, 8 July, 2010 - 8:15am login or register to post comments

 
I can make a guide page...
but do not think it should be done until confirmed.
… Blaine Mathison, 8 July, 2010 - 10:06am login or register to post comments

 
the only hind spur i see is
the one the arrow points at. If I am not looking in the correct spot, please tell me.
… roar, 8 July, 2010 - 11:07am login or register to post comments

 
Thanks!
This image is more convincing. I will move for now, pending other analysis! Thanks much!
… Blaine Mathison, 8 July, 2010 - 12:09pm login or register to post comments

 
That image
is just a scaled image of one of the other ones posted earlier.
… roar, 8 July, 2010 - 12:11pm login or register to post comments

Moved
Moved from ID Request.
… Blaine Mathison, 6 July, 2010 - 11:09am login or register to post comments

Phyllophaga
I can try and key it out later tonight (my lit. is at home). These images should be good enough! Possibly not P. quercus (doesn't look pruinose).
… Blaine Mathison, 6 July, 2010 - 10:59am login or register to post comments

 
Okay
Thanks! I'm horrible at identifying these. If you need any more pictures I still have the specimen.
… roar, 6 July, 2010 - 12:59pm login or register to post comments

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