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Photo#553535
Small Beetle - Heterobostrychus aequalis

Small Beetle - Heterobostrychus aequalis
Santa Clara County, California, USA
July 1, 2011
Size: ~8mm long, ~3mm wide
This beetle emerged from a mango wood bowl bought from Target in May 2011. I can only guess that it was the 80˚F temperatures this month that prompted it to come alive and emerge. I have observed two beetles thus far, the first on July 8 and another today, July 28.

I hesitated to post an ID because I cannot be certain that this is a North American species of beetle, as it came from a bowl made of wood that generally comes from tropical areas. Unfortunately I threw away the stickers that came on the bowl, and do not remember if it said where the wood originated.

Fearing that the beetle could be an invasive species, I managed to grasp part of the first one with a pair of forceps and it eventually died and dried out so I could knock it out of its tunnel. I discovered that the divots on its back are actually translucent and appear yellow-colored under bright light. The wings are a light rusty-brown color.

Any help with this bug would be greatly appreciated. I just want to be sure that if any other beetles emerge, they aren't invasive if they manage to take flight.

Images of this individual: tag all
Small Beetle - Heterobostrychus aequalis Small Beetle - Heterobostrychus aequalis Small Beetle - Heterobostrychus aequalis

Moved tentatively; thanks again, Robert
Moved from Amphicerus.

This is probably Heterobostry
This is probably Heterobostrychus aequalis (Waterhouse). It is from Southeast Asia and is one of the most common bostrichids intercepted in the US. It is currently established in South Florida along with H. hamatipennis.

Moved
Moved from ID Request.

Amphicerus of sorts
see(1)
dunno if native or not: those things are readily spread worldwide through agency of man, although your specimen looks a lot like a nearctic species

 
Thanks for the reassurance, v
Thanks for the reassurance, v belov. I was afraid that should one escape it could do some serious damage. Good to know that they're spread world-wide, even if in different species.

Powder-post beetle ?
We have something like this in the USA, but I don't know if
yours is native or not.

 
Thanks, Stan! I did a quick s
Thanks, Stan! I did a quick search on google for "wood beetle" before posting to BugGuide and had come across the Powder Post beetle. It certainly does look like one, but the head on this one is more bulbous than the photos I found.

Just knowing that something in the same family or even genus is local to the US is good enough for me. I'm just glad to know that if one of these escapes, it might not be too terrible.

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