Those are pretty abundant around me. The issue is they might be too fast with their jumping. Thanks for the info - it’s gonna take a while to get adults! I only have four eggs and so far only two have darkened. For the others one looks midway to this and the other is still yellow.

Could this rearing be useful for uncovering the life history of this species? I’m just a kid though and I don’t have a whole laboratory to test stuff on these guys - ha! Is this species really endangered?( if so I feel really bad for collecting a pregnant female on accident).

These eggs were laid around April 1st/March 31

I haven't heard of springtails being a part of their diet, though they may be similar enough to their usual food sources. If they're too fast, you might could try fresh-killed springtails or refrigerating the springtails to slow them down. John Schneider's had some success raising lacewing larvae so might have other suggestions for aphid alternatives.

Rearing them certainly could reveal some more info about their life history, depending on how successful it is. Doing good science doesn't really require a lab setting, so long as you take good notes. Keeping a daily journal of the feedings and what they do or do not eat, their progression through instars, and progression photos can all be useful. I'm only aware of published color photos of 1st and 2nd instar larvae done by Dr. Catherine (Kady) Tauber, so regardless how successful rearing is the look at larvae will be a fairly unique look. It might even be worth reaching out to Dr. Tauber via e-mail to compare notes.

As far as its status, the literature suggests that its apparent infrequency is due more to fewer observers rather than actually being endangered (Adams, 1967). Even looking at the NatureServe website, its provincial statuses are all "no status" and notes that global status needs to be reviewed. Neither the U.S. Endangered Species Act nor Committee on the Status of Endangered Wildlife in Canada consider the species endangered. I suspect the erroneous listing is derived from Scudder (1994), which treats any infrequent occurrence in Canada (lumping endangered, endemic, and adventitious populations). Given that the species is exclusively coastal, that it just barely reaches into southern British Columbia, and that within its coastal range is noted to be particularly common in the San Francisco area, it really seems to be doing rather well. I wouldn't think collection would have any real effect on the species.

I tried to feed the larva dead psyllids but I’m not sure if they accepted them or not. One larva ate an infertile egg - now down to 3