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Sand Springs, Osage County, Oklahoma, USA
January 31, 2009
Size: 1mm (1/32"+)
Found under a rock.
Please help with ID.


Indeed Collembola
Two families come to mind.
Entomobryidae : in Pseudosinella there are several species without eyes, such as Pseudosinella rolfsi and violenta.
Else Cyphoderidae such as Cyphoderus similis, mostly found in close neighbourhood of ant nests.

Given you did not find them in/close to ant nests, I vote for P. violenta, given the narrow shoulders. P. rolfsi has broad shoulders.

How about
Arthropleona (Elongate-bodied Springtails) ?

Yeah, I couldn't decide if I wanted to try springtails or thrips. The only reason I said thrips is because they are so small and I thought sure I posted some like this a year or so ago and somebody said they were thrips. But I definitely agree they look like springtails.

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