SMALL SILVER SPRINGTAILS 
(Entomobrya sp)
These are small silver springtails which are present in about 85% of the enclosures and terrariums at the OIF. 
These are probably one of the most adaptive and hardy springtail species I've worked with. If you have trouble keeping springtail colonies alive and not crashing I highly recommend giving this species a try. They don't have the tendency to crash like other temperate or tropical species, and tolerate both humid and dry conditions. Colonies grow steadily and they move through the entire depth of the substrate, making them very effective clean up crews.