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Photo#49889
Little Black Beetle with Orange - Glischrochilus fasciatus

Little Black Beetle with Orange - Glischrochilus fasciatus
Cambridge, Middlesex County, Massachusetts, USA
April 27, 2006
Size: ~4mm
In the lid of a compost bin. Note the tiny mite next to it. I'm curious about the two light bumps on the side of the thorax(?).

Images of this individual: tag all
Little Black Beetle with Orange - Glischrochilus fasciatus Little Black Beetle with Orange (side) - Glischrochilus fasciatus Little Black Beetle with Orange (front) - Glischrochilus fasciatus

Moved
Moved to Guide.

Mites?
Does anyone know if those are mites (two on the right side and one near the left eye)?

Nitidulidae: Glischrocheilus fasciatus
This is the same species that others have identified as Glischrocheilus fasciatus.

 
Glischrochilus fasciatus
Thanks for the ID, Donald. 4-7 mm sounds like the right size.
Glischrochilus fasciatus

 
Nicrophorus sp.
I believe this is a Sexton Beetle, genus Nicrophorus. There are a number of species, but most have this sort of orange marking on a black background, and shorter elytra that leave the posterior of the abdomen exposed. Like other Silphidae, they have a ball-shaped apex of the antennae.

--Stephen

Stephen Cresswell
Buckhannon, WV
www.stephencresswell.com

 
dont think its a silphid
looks a little like one the pleasing fungus beetle family Erotylidae they range from 3-20mm so it could be something in this family. but it doesnt look like any siphid I have worked with

 
Too small?
Nicrophorus looks plausible except for the size -- the Info page says 16-35 mm, but this one was much smaller than that.

 
You're right, too small
Ooops, I failed to note the size of your beetle. You're right, way too small for any Nicrophorus I've ever seen.

This color scheme always makes me think of a Pleasing Fungus Beetle genus, Megalodacne, but among other differences Megalodacne is also too large to match your beetle.

Well I will keep looking and maybe someone else will chime in with some thoughts here too.

--Stephen

Stephen Cresswell
Buckhannon, WV
www.stephencresswell.com