Mystery mine on American trailplant (Adenocaulon bicolor)
Here's a mystery I've been trying to solve for a decade now: a long, linear leaf mine of an agromyzid fly on Adenocaulon bicolor in the Pacific Northwest. It should be a relatively easy one to rear, since the puparium is formed in the leaf (hidden on the lower surface) and there are apparently at least two generations per year, with mines present from June to October.
@jmole, WA, 6/9/2021
@lumenal, OR, 7/6/2021
@lumenal, OR, 7/12/2022
@lumenal, OR, 7/18/2022
@flammulated, OR, 7/22/2021
@flammulated, OR, 7/30/2021
@brnhn, WA, 8/18/2022
@kurtsteinbach, WA, 8/30/2021
@brnhn, OR, 9/5/2021
@johndreynolds, BC, 9/18/2020
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Some more: https://www.inaturalist.org/observations/136739418 (BC)
https://www.inaturalist.org/observations/168568575
https://www.inaturalist.org/observations/170103739
https://www.inaturalist.org/observations/176890374
https://www.inaturalist.org/observations/185527583
https://www.inaturalist.org/observations/186956375
https://www.inaturalist.org/observations/134649913
They're active now in Oregon! https://www.inaturalist.org/observations/163545932
@cosmopterix, maybe you can keep an eye out...
Indeed! I remember searching for this years ago. Unfortunately our abundant populations of the host before the fire haven’t yet rebounded, so I am unlikely to encounter this casually. Next year I’ll be out and around more.
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