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Photo#92580
wide-but-minute golden springtail - Lepidocyrtus

wide-but-minute golden springtail - Lepidocyrtus
Windham, Rockingham County, New Hampshire, USA
Size: about 0.7 mm
Collected and photographed Jan. 1, 2007 by sifting hand-shredded moss and fungus samples gathered Dec. 9, 2006 from wooded area.

Due to its light color this minute springtail was easy to see racing around against the dark background. However, because it was so hyperactive I was unable to get more than one useful shot of it. Here it appears to be perched on an even smaller dead springtail with furcula extended and curling at tips.

Moved

Lepidocyrtus sp.
A subadult specimen.

 
Thank you, Frans.
Do all Lepidocyrtus species have a hump on their back when they mature but "good posture" when young?

 
No, not at all.
It are different species. Many Lepidocyrtus s.l. have a hump but not all species. There is a phylogenetic evolution within Lepidocyrtus species from species without a hump at all, via species with a moderate hump, to species with a distinct hump. Juvenile specimens of species with a hump have a hump from in the beginning except proportionally less distinct.

 
Thanks, Frans,
for educating me about springtails.

Oops. Here it is in this photo too:

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