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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Bostrichoidea » Death-watch and Spider Beetles (Ptinidae) » Spider Beetles (Ptininae) » Ptinini » Ptinus » subgenus Gynopterus (Ptinus subgenus Gynopterus) » Ptinus sexpunctatus
Photo#106920
Spider Beetle - Ptinus sexpunctatus
Copyright © 2007 Lynette Elliott

Spider Beetle - Ptinus sexpunctatus
Thompson Falls, Sanders County, Montana, USA
May 1, 2007
Size: 5 mm
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Contributed by Lynette Elliott on 2 May, 2007 - 7:53am
Last updated 3 May, 2007 - 5:21pm

Moved
Moved from Spider Beetles.
… Lynette Elliott, 3 May, 2007 - 5:21pm login or register to post comments

Ptinus sexpunctatus
I Agree with Boris. This is Ptinus sexpunctatus Panzer. Interesting to know that it is found in Montana. We have just published a paper in Entomological News which newly reports this species from Nova Scotia, Utah, and Pennsylvania. The paper is:

Majka, C.G., Philips, T.K., and Sheffield, C.S. 2007. Ptinus sexpunctatus Panzer (Coleoptera: Anobiidae: Ptininae) newly recorded in North America. Entomological News, 118(1): 73–76.

There is a PDF reprint available at:

http://www.chebucto.ns.ca/Environment/NHR/PDF/Ptinus_sexpunctatus.pdf

It is not on the Canadian list at canacoll.org since this dates from 1991 and the discovery is a recent one.

Best wishes!

Christopher Majka
… Christopher Majka, 3 May, 2007 - 10:18am login or register to post comments

same individual . . .
as this one?:

Please read comments with a similar one in the guide:

In the case of your Ptinus, I am almost sure it has to be the recently introduced Ptinus sexpunctatus, see a picture from Europe, and this article:
… Boris Büche, 3 May, 2007 - 9:09am login or register to post comments

 
Thanks to you all....
I can't be sure it's the same individual. It probably is not. I found this one the next day about 100 yards from where I found the first one. Both were found on the side of buildings.
… Lynette Elliott, 3 May, 2007 - 5:20pm login or register to post comments

possibles
great looking beetle - presumably on the Canadian list for either Alberta or Saskatchewan - not that many choices. Boris may recognize this as many are evidently adventive spp. from Europe [P. bicinctus?].
… Phillip Harpootlian, 2 May, 2007 - 8:54am login or register to post comments

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