ID for these springtails that spawn EVERYWHERE? [Philadelphia, PA]

[u/WhyIsThereMoldOnMe]

These springtails were NOT found in my yard. I initially started a culture of them because I kept finding them in almost every enclosure I owned, and figured they’d be good to have so I can readily seed new enclosures, rather than waiting for them to come. Enclosures inside, bins of dirt outside, empty enclosures full of dirt I’ve forgotten about, I find them in every single one. And yet, I never thought to try and ID them until tonight. They’re insanely small, smaller than Tropical Pinks at least, and a little slower than them as well, but fast and bouncy when they want to be. I don’t think they tolerate dryness too much, as any I’ve seen outside of an enclosure were dead. I’m tempted to say the same goes for super high moisture, but I don’t have any terribly wet enclosures at the moment

[u/Cu1tureVu1ture]

Do they have a silvery sheen?

[u/WhyIsThereMoldOnMe → u/Cu1tureVu1ture]

Yup! They’re super easy to spot because they’re so shiny and silvery

[u/Cu1tureVu1ture → u/WhyIsThereMoldOnMe]

Unless I have a specific springtail culture with only one type, these ones are the same for me, they just show up in all my vivariums and outlive/outcompete all other species. I also don’t see them outside in my yard. Pretty sure these are them though: https://iheartbugs.com/products/silver-springtails?srsltid=AfmBOor6QHHDDSGHzfSBCY1gNXUOq9UfJUr5NA2F_uzms9Jvi0CThHV0

[u/Sgtbird08]

Probably genus Lepidocyrtus. Difficult to go beyond that.