Moved from Tomoceridae.

Moved from Tomocerus pogonognathellus flavescens.

But Pogonognathellus flavescens.

Moved from Tomocerus.

Hi Jim. P. flavescens is normally uniformily leadgrey, silvergrey when all scales are intact. If the scales are removed, the body colour is uniformily yellow, however. Hence, its name 'flavescens'. Another characteristic: its antennae are shorter then its body.
This is a juvenile specimen. Adult P. flavescens are between 4 to 6 mm.

An afterthought: due to the loss of scales the specimen becomes very vulnarable to dehydration. They normally live in very damp places (more than 95% air humidity). The scales prevent them to dehydrate. I assume, in your light arena it will not be possible to create such a high humidity.

Moved from Elongate-bodied Springtails.

Hi Jim. Although the pictures might not been from the same specimen it appears to me the same species anyway. So it is best to keep the pictures linked in one set.
I just found an anonymous comment at the Seira bipunctata pictures of Perry according to which linking is for the same individual... This must be 'bugguide speak'. If this is a bugguide rule, it would be best to provide hyperlinks inbetween these related images to indicate that they are to be considered as kind of one record of several specimens of the same species.