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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Acalyptratae" » Opomyzoidea » Leaf Miner Flies (Agromyzidae) » Agromyzinae » Agromyza
Photo#1547492
agromyzid - Agromyza - female
Copyright © 2018 Steve Scholnick

agromyzid - Agromyza - Female
North Bethesda, Montgomery County, Maryland, USA
June 21, 2018
Size: wing ~3.7mm
If I’ve done this correctly, this one keys out to Agromyza in both the MND (1) and Spencer & Steyskal keys (2). I haven’t had any luck getting further than that using the Spencer & Steyskal key to this genus (2); I end up at Agromyza canadensis the host of which is supposedly Boraginaceae, possibly Cynoglossum officinale (2). There are Maryland records of this species and another in the same genus but I’ve never seen either plant.

The kicker is that I found this fly on an elm leaf but it doesn’t fit the Spencer & Steyskal description of A. aristata and I haven’t found any leaf mines on this tree.

I’d appreciate some help with this one. TIA

•larger version here

Images of this individual: tag all
agromyzid - Agromyza - female agromyzid - Agromyza - female agromyzid - Agromyza - female agromyzid - Agromyza - female agromyzid - Agromyza - female agromyzid - Agromyza - female agromyzid - Agromyza - female agromyzid - Agromyza - female
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Contributed by Steve Scholnick on 1 July, 2018 - 2:10pm
Last updated 18 November, 2022 - 3:32pm

Moved
Moved from Agromyzinae.
… John F. Carr, 4 July, 2018 - 7:20am login or register to post comments

possible ID
If I'm actually seeing 5 fronto-orbitals, then it's likely A. virginiensis, host unknown. Probably just an incidental occurrence on elm.
… Owen Lonsdale, 4 July, 2018 - 7:12am login or register to post comments

 
Five pairs
I count five, the anterior small, and the third broken off with only socket visible on the left side of the head.
… John F. Carr, 4 July, 2018 - 7:15am login or register to post comments

Don't know
I keyed it to Agromyza varifrons but it's not a convincing match. It may be an undescribed species. A. varifrons has at least one undescribed relative. Is there Celtis nearby?
… John F. Carr, 3 July, 2018 - 3:16pm login or register to post comments

 
not that I know of
but I will look for it next week. It's an office park so there's no rhyme or reason to what grows there.
FWIW, I still have the fly although it's not mounted or preserved properly
… Steve Scholnick, 3 July, 2018 - 5:24pm login or register to post comments

Moved
Moved from Flies.
… John F. Carr, 1 July, 2018 - 3:21pm login or register to post comments

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