Mystery mine on Pacific hound's tongue (Adelinia grande)

This is the first in what I expect to be a series of posts highlighting commonly observed mystery leaf mines. My hope is that people will keep an eye out for them and collect any occupied ones so that adult insects can be reared and we can put names to them. You can click on any of the images below to get to the original observations. These are all mines of some unknown agromyzid fly on Pacific hound's tongue (Adelinia grandis); they have been found in several California counties. Empty mines have been found as early as March 9; no one has yet found ones that clearly have larvae inside, although some photos taken in late May show small and fresh-looking mines, so there may be two generations per year.

photo of agromyzid mine on a leaf of Adelinia grande photo of agromyzid mine on a leaf of Adelinia grande photo of agromyzid mine on a leaf of Adelinia grande @sea-kangaroo, San Mateo Co., CA, 3/9/2018, 5/29/2019, 6/10/2020


photo of agromyzid mine on a leaf of Adelinia grande @temminicki, San Mateo Co., CA, 3/11/2018


photo of agromyzid mine on a leaf of Adelinia grande @merav, Santa Clara Co., CA, 3/14/2021


photo of agromyzid mine on a leaf of Adelinia grande @debkccb, San Mateo Co., CA, 3/15/2020


photo of agromyzid mine on a leaf of Adelinia grande @u_phantasticus, San Mateo Co., CA, 3/20/2020


photo of agromyzid mine on a leaf of Adelinia grande photo of agromyzid mine on a leaf of Adelinia grande @chloe_and_trevor, Marin Co., CA, 3/31/2021, 4/22/2021


photo of agromyzid mine on a leaf of Adelinia grande @cmaci, San Mateo Co., CA, 4/4/2020


photo of agromyzid mine on a leaf of Adelinia grande @zufi, San Mateo Co., CA, 4/9/2021


photo of agromyzid mine on a leaf of Adelinia grande @selwynq, San Mateo Co., CA, 4/11/2021


photo of agromyzid mine on a leaf of Adelinia grande @elonicera, Santa Clara Co., CA, 4/14/2021


photo of agromyzid mine on a leaf of Adelinia grande @melanopygus, Marin Co., CA, 4/29/2018


photo of agromyzid mine on a leaf of Adelinia grande photo of agromyzid mine on a leaf of Adelinia grande @leslie_flint, San Mateo Co., CA, 4/30/2021, 5/4/2020


photo of agromyzid mine on a leaf of Adelinia grande photo of agromyzid mine on a leaf of Adelinia grande photo of agromyzid mine on a leaf of Adelinia grande photo of agromyzid mine on a leaf of Adelinia grande @gyrrlfalcon, San Mateo Co., CA, 4/16/2021, 5/4/2020, 6/5/2020


photo of agromyzid mine on a leaf of Adelinia grande @leptonia, Santa Cruz Co., CA, 5/10/2017


photo of agromyzid mine on a leaf of Adelinia grande @owicki, Santa Clara Co., CA, 5/11/2020


photo of agromyzid mine on a leaf of Adelinia grande @kzias, San Mateo Co., CA, 5/24/2020


photo of agromyzid mine on a leaf of Adelinia grande @hoechsle, Santa Cruz Co., CA, 5/30/2019


photo of agromyzid mine on a leaf of Adelinia grande @calloohcallay, San Mateo Co., CA, 5/30/2020


Update, 3/11/2022: People have found some occupied mines in 2022!


photo of agromyzid mine on a leaf of Adelinia grande @gina-barton, Santa Clara Co., CA, 3/5/2022


Having seen this puparium that @nancyasquith got from one of these mines (Santa Clara Co., CA, 3/10/2022), I'm now reasonably sure this is an Agromyza species.

photo of agromyzid mine on a leaf of Adelinia grande

Publicado el enero 31, 2022 03:12 MAÑANA por ceiseman ceiseman

Comentarios

Thanks for this post, Charley, and I look forward to others - I'll keep my eyes peeled! :)

Publicado por kschnei hace más de 2 años

Very interesting! Thanks for sharing! You never know what you'll discover out there! :)

Publicado por gina-barton hace más de 2 años

Some more here: https://www.inaturalist.org/observations/109184311
https://www.inaturalist.org/observations/109795596
https://www.inaturalist.org/observations/109896882
https://www.inaturalist.org/observations/110725325
https://www.inaturalist.org/observations/117234928
https://www.inaturalist.org/observations/119694088
https://www.inaturalist.org/observations/116875880
https://www.inaturalist.org/observations/108765688
https://www.inaturalist.org/observations/109001667
https://www.inaturalist.org/observations/109895258
https://www.inaturalist.org/observations/111144587
https://www.inaturalist.org/observations/155534010
https://www.inaturalist.org/observations/118623493
https://www.inaturalist.org/observations/165231526
https://www.inaturalist.org/observations/165969360
https://www.inaturalist.org/observations/202094258
https://www.inaturalist.org/observations/202512225
https://www.inaturalist.org/observations/202836768
https://www.inaturalist.org/observations/202855412
https://www.inaturalist.org/observations/202854502
https://www.inaturalist.org/observations/203392238
https://www.inaturalist.org/observations/204090626
https://www.inaturalist.org/observations/205823549
https://www.inaturalist.org/observations/206705924
https://www.inaturalist.org/observations/207331049
Oregon:
https://www.inaturalist.org/observations/165449995
https://www.inaturalist.org/observations/166123136
https://www.inaturalist.org/observations/166184071
https://www.inaturalist.org/observations/167912296

Publicado por ceiseman hace más de 2 años

Saw this on Saturday for the first time and was curious. My investigation led me here so I plan to go back tomorrow to do an observation.

Publicado por erinkob hace 3 meses

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