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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Staphyliniformia » Staphylinoidea » Rove Beetles (Staphylinidae) » Proteininae » Megarthrus
Photo#374290
Rove Beetle? - Megarthrus
Copyright © 2010 JC Jones

Rove Beetle? - Megarthrus
Spiderweb, Aiken County, South Carolina, USA
February 28, 2010
Size: ~3 - 4mm
Found in the pool.

Images of this individual: tag all
Rove Beetle? - Megarthrus Rove Beetle? - Megarthrus
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Contributed by JC Jones on 2 March, 2010 - 11:33am
Last updated 2 March, 2010 - 5:19pm

Megarthrus americanus?
I believe this to be M. americanus based on Cuccodoro and Löbl's 1996 revision(1)
I can't comment on the flat coxites or arcuate metatibia mentioned in the literature. However, it has very denticulate lateral pronotal margin and the locality fits. M.americanus also seems to have a more pronounced denticle on the anterior of the pronotal margin, compared to the rest of the nearctic species.

Mike Ferro uploaded a photo of the species here!

*also could the size be an over-estimate? The species of Megarthrus are generally
… Charlene Wood, 14 May, 2016 - 12:25am login or register to post comments

species?
Does anyone know the species name of this?
… Anjelica Moreno, 18 May, 2010 - 5:58pm login or register to post comments

 
if Dr Thayer couldn't tell, then no :)
… v belov, 18 May, 2010 - 6:06pm login or register to post comments

Moved
Moved from Beetles.
… Margaret Thayer, 2 March, 2010 - 5:19pm login or register to post comments

the pronotal scultpure
is consistent with Megarthrus.
… Blaine Mathison, 2 March, 2010 - 11:48am login or register to post comments

Not an ID, just an observation...
Looks a bit like Megarthrus



Now let's wait for the folks with actual expertise, and see if they agree. :)
… Ken Wolgemuth, 2 March, 2010 - 11:43am login or register to post comments

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