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little brown beetle - Litargus grandis

little brown beetle - Litargus grandis
upper Madera Canyon, Pima County, Arizona, USA
July 26, 2013
Size: ~ 3.5 - 5 mm
Beetle was on the underside of a fallen log that was resting a few feet off the ground. There was slime mold near the beetle (next photo) and fungus on the log.

Images of this individual: tag all
little brown beetle - Litargus grandis little brown beetle - Litargus grandis

Moved tentatively; very cool, rare species
this one is darker and a bit smaller than described in(1), but the antenna is a dead ringer [see fig.50]; apparently, just a handful of specimens known [at least that was the case at the time of revision]; specimens, if any, should be deposited in a reputable collection and examined

Moved from Mycetophagus.

My size guesstimate could be off. I checked the key you link to. This beetle could have been 4.5 mm (rather than the < 4mm I put). What happened in Arizona is there were so many endless insects I had not seen before that for 90% of them, I did not take the time to measure them. I just wanted to keep finding more!

Looking at the beetle in comparison to the slime mold, and looking at other photos I have of beetles whose exact sizes I do know, on similar slime mold, I'm changing my size guesstimate to 3.5-5mm.

I didn't collect the specimen. I did not even move it from where I found it (though some other less cooperative beetles did go to my motel room to be photographed).

Also, for the record, the beetle was out at night (around 11pm) and was not near a light.

neat bug... will work on it
Moved from Beetles.

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