John Abbott / Springtails (Hypogastrura sp.) in mass mating aggregation, Austin, Travis County, Texas, USA.

Piotr Naskrecki / Snow Springtail (Hypogastrura harveyi) on snow, Massachusetts

Doug Wechsler / Podurmorph springtails (Hypogastrura sp.) in rotten log, Camp Woods Preserve, Pennsylvania, USA. October.

Doug Wechsler / Springtail (Hypogastrura) crawling over a rotten log, Pennsylvania, USA. March.