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Photo#513837
8-legger - Penthaleus

8-legger - Penthaleus
Medford, (~25 miles east of Philadelphia, PA) Burlington County, New Jersey, USA
April 25, 2011
Size: 0.55mm
this might just be the smallest critter I've ever imaged (should have used the 10x M Plan, but this is with the 4x/0.13 N/160 and ~220mm of extension). Normally I stick with the 6 leggers, but this one appear to have 2 extra. Suggestions welcome :)

Oh, and found in the UV light trap. I guess came in as a "guest" of someone else?

Images of this individual: tag all
8-legger - Penthaleus 8-legger - Penthaleus

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Dave Walter says:
"Pretty hard to tell from such a shrivelled specimen. My best guess would be an earth mite (Penthaleidae) based on the long legs, colour, and sparse setation, and possibly a Blue Oat Mite or close relative (Penthaleus sp.). The dark colour of the body is consistent with an earth mite and the dorsal view looks like it has an anal opening in the middle of the opisthosoma like an oat mite (http://bugguide.net/node/view/315413/bgimage). Presumably this helps when oat mites are feeding upside-down on leaves (although Red-legged Earth Mites get by with the anus in a more normal position). The gnathosoma looks too robust, though, but that could be because the body is shrivelled. I'd stake your reputation on it being a Penthaleus sp., but not mine."

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Come on, this has to be some kind of mite, right? I know I've seen those knobby structures (behind the 2nd pair of legs) on a mite before, but can't remember where.

 
Well...
...that was my original thought. Seems that not everyone is in full agreement, though. :)

 
Damaeid?
With the patterned wax exudate and all those setae, it really looks to me like some kind of damaeid mite (Oribatida > Brachypylina > Damaeoidea > Damaeidae), but I'm certainly no expert.

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Hi Tim
It sure looks like a mite to me. I don't know much about mites, but some of these ones look similar to me: Order Oribatida.

 
No luck

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Moved for expert attention
Moved from ID Request.

I figure it's got to go here... and that if it doesn't, the experts who hang out here will tell me soon enough. :)

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