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Dear Mrs Lundberg,

 

this is a male of the spider beetle Ptinus fur.

 

Best regards

 

Reiner Pospischil

 

-----Original-Nachricht-----

Betreff: [pestlist] RE: Beetle identification help

Datum: Wed, 29 Jan 2014 14:54:03 +0100

Von: "Lundberg, Holly" <[email protected]>

An: "[email protected]" <[email protected]>

 

 

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help

 

These little guys were found in a sticky trap at one of our off-site storage facilities, which is an old cold war bunker type storage facility we inherited from a bank.

 

4 adults were found in the trap. They range in size from 3 – 4 mm in length. The pictures aren’t the best, but I’m hoping someone can help with the identification.

 

In terms of the beetle themselves, They are an orangey-brown color, and of a type where the heads are not visible from above. Under magnification, I can see that the head, protonum and elytra are hairy. The elytra have longitudinal rows of pits. The antennae are very long and appear to be filiform?  I counted 11 segments. The hair seems to have some lighter coloring (whitish across the elytra and also in ( ) shape at center of the protonum. The ( ) shaped area on the protonum appear to be ridge like,  and a very slight conical shaped area protrusion can be seen on each side of this area visible but blurry in pic 3..  

 

Any ideas?

 

 

Thanks

 

 

Holly

 

 

Holly Lundberg
Conservator
(312) 799-2069 direct, (312) 799-2369 fax
[email protected]

Chicago History Museum
1601 North Clark Street
Chicago, IL 60614-6038
http://www.chicagohistory.org

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