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Photo#51710
 Bark-gnawing Beetle - Thymalus marginicollis

Bark-gnawing Beetle - Thymalus marginicollis
Bolton, Worcester County, Massachusetts, USA
May 10, 2006
Size: 7mm

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 Bark-gnawing Beetle - Thymalus marginicollis  Bark-gnawing Beetle - Thymalus marginicollis  Bark-gnawing Beetle - Thymalus marginicollis

Moved
Moved from Thymalus.

 
It's the only species on NH checklist
and on Nomina Nearctica.

Can't say about Tom's beetle.
The larvae are found primarily in shelf fungi. When they mature, the adults seem to eat the shelf fungus also and they live only about three weeks. The common name no doubt was applied to other members of the family.

Interesting!
What an interesting shape on this beetle. Found under bark?

--Stephen

Stephen Cresswell
Buckhannon, WV
www.stephencresswell.com

 
No bark
I found this inside a 3" diameter log on the ground, that was soft enough for me to pull apart. The log didn't have any bark on it. I had to look closely, because it hunkered down and didn't move, looking like part of the wood.

 
Larvae in wood also.
I did find a larva inside a soft wood chunk and reared it to maturity. The adult was deformed but I suppose I should have posted it just for the habitat/diet record.

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