Collected about 9 active mines for rearing. The larva from one mine was found walking around the collection vial within <1hr of collecting. Others remain in mines as active larvae or in chambers, as in photo 2 of this observation: https://inaturalist.ca/observations/138429043. Will store everything in fridge until April.
I suspect the larvae make multiple mines. Mines tended to be clustered - I would search for 10 minutes without finding anything, then would find 2 or 3 mines in very close proximity, often same plant, with most or all mines empty, including some small leaves that were completely mined.
Second photo shows a dead leaf that has been attached to the Mitella leaf. I'm hoping there's a chrysalis in there. Several mines found, all empty.
First record for site (pending confirmation)
specimen for Jason Dombroskie/Cornell
Distance between threads = 0.6 mm
Ou C. apicitripunctella ?
@jasondombroskie
Found stuck on its back in the sink. It was barely alive, I thought it was dead when I picked it up. I considered putting it out of its misery but it seemed to flap its wings harder as it dried, even though it didn’t seem to be able to move its legs, so I placed it on a window sill in hopes that it could possibly recover.