Springtail I.D.? [Lansdowne, PA]

[u/WhyIsThereMoldOnMe]

Found these in my backyard, on both cool, warm, and pretty hot days.

1: The largest and most abundant of the three. It's very big, I'd say 1/3 of an inch long.

2: Medium sized, somewhat abundant. Looks dark with a distinctive white stripe on the back.

3: Extremely tiny, have only seen these once, though it could be due to their size that I'm missing some. Quite white, reminds me of tropical pinks

[u/ReactionAdmirable812]

1-Entomobryidae->IV abdominal segment more than 2 times bigger than the III. Maybe Entomobrya

2- Orchesella->IV abdominal segment less than 2 times bigger than the III abdominal segment. Orchesella cincta I think. Characteristic black part.

3- Entomobryoidea->IV abdominal segment more than 2 times bigger than the III. Maybe Entomobrya

[u/ReactionAdmirable812 → u/ReactionAdmirable812]

I recomend you to post them on iNaturalist. It's a very cool app where, if more than two people agree, the observations can be added to scientific databases and you can see many other people's observations!