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Scarab UID - Geotrupes stercorarius

Scarab UID - Geotrupes stercorarius
Pelerin (at home down at the 2 acre beaver pond), Kent County, New Brunswick, Canada
May 30, 2010
Size: 26 mm
-have specimen: very attractive with lots of metallic reflections in the black

Moved from Geotrupes.

Geotrupes balyi
comes to mind; looks like sutural striae go all the way to the base of elyra (but pronotal punctation doesn't look right), but 25 mm is too big for this species. Striations do not look right for G. stercorarius, but G.s. is the most-likely candidate if the specimen in 25 mm.

G balyi fits...
Have read other comments on other images and this species is already in the guide for NB as well. Checked my other images and the striae definitely do reach the base of the elytra and wrap around the scutellum as well. I will arefully re-measure the specimen tomorrow and post the actual size, as I was just going from memory. Thanks for the help guys! I will move it after checking things out and "return to the drawing board" if the size is indeed 25 mm or more, but it "must be" smaller.

Holy smokes! It's 26.5 mm!
I guess Vassili was right! This is one whopping big beetle for this part of the world! I just could not wait until tomorrow, so I dug through all my vials until I found the right one...It is in 70% EtOH and the specimen is a little "hunched", but it still measures a full 26 mm and then some. Are there any other possibilities, or is G stercorarius the only one that is this big?

G. sterc
also has complete elytral striae, so at that size, yes it almost certainly G. sterc. Feel free to move! Thanks for the contribution!

Moved from Scarab Beetles.

Geotrupes of sorts

Thanks Vassili!
Am moving and will look into it further to hopefully refine ID...

i will not be surprised if it turns out to be G. stercorarius --
--the ubiquitous 'dor beetle' from across the pond

Geotrupes stercorarius ID
Of course, this beetle looks most likely G.stercorarius. If this specimen is male, ID would be definitly: the lower surface of fore tibia has arming characteristic to this species a long keel along tibia.

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