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 Agromyzidae on Mint - Phytomyza petoei for confirmation please
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| Martin Cooper |
Posted on 18-09-2014 22:43
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
The Apple Mint (Mentha suaveolens) in my back garden had been mined extensively this summer. I took a few leaves on 5 July and kept them to see what emerged. On 11 July I found 8 small brown pupae on one of the leaves. These hatched into small black flies on 19 July, only 1 of which was obviously male. Here are photos of the leaf, the puparia and the male specimen which emerged. To my great frustration I lost the abdomen when I was detaching it to get a better look at the genitalia! Please review the following photos and confirm or correct my determination of this as Phytomyza petoei. First the leaf in natural light. Martin Cooper attached the following image:  [183.32Kb] |
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| Martin Cooper |
Posted on 18-09-2014 22:45
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
Next the leaf backlit with a close-up of one of the mines. The larva is visible at the top left end of the mine. I could see its jaws moving as it tunnelled through the leaf.
Martin Cooper attached the following image:  [197.85Kb] |
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| Martin Cooper |
Posted on 18-09-2014 22:45
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
Here are the puparia that I collected from the leaf...
Martin Cooper attached the following image:  [99.8Kb] |
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| Martin Cooper |
Posted on 18-09-2014 22:46
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
... and this is a close-up of one of the puparia, though it my not be the one from which the specimen that I have photographed came from.
Martin Cooper attached the following image:  [112.43Kb] |
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| Martin Cooper |
Posted on 18-09-2014 22:47
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
This photo shows the back of the male fly.
Martin Cooper attached the following image:  [89.23Kb] Edited by Martin Cooper on 18-09-2014 22:52 |
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| Martin Cooper |
Posted on 18-09-2014 22:53
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
Here is a view from the front.
Martin Cooper attached the following image:  [181.31Kb] |
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| Martin Cooper |
Posted on 18-09-2014 22:55
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
One wing was detached and photographed under a compound microscope. I have added a scale.
Martin Cooper attached the following image:  [199.58Kb] |
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| Martin Cooper |
Posted on 18-09-2014 22:55
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
This is a profile shot of the head.
Martin Cooper attached the following image:  [197.58Kb] |
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| Martin Cooper |
Posted on 18-09-2014 23:01
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
Using the keys in Spencer's RES Handbook Vol 10 Part 5g (free download from http://www.royens...art05g.pdf), in Agromyzidae (Diptera) of Fennoscandia and Denmark and the info at http://www.ukflym..., http://www.leafmi... and www.bladmineerder... I think that this is Phytomyza petoei Hering, 1924. There are currently no records for this species on the NBN Gateway, presumably due to under-reporting. In the RES Handbook for the Identification of British Insects, Spencer gives its distribution as "Probably not uncommon in south". I am hoping that this ID can be confirmed or corrected here. Best wishes, Martin |
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| mcerny |
Posted on 19-09-2014 06:47
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Member Location: Czech Republic Posts: 667 Joined: 15.07.08 |
OK, this is Phytomyza petoei Hering, 1924. Miloš |
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| Martin Cooper |
Posted on 19-09-2014 08:33
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Member Location: Ipswich, Suffolk Posts: 628 Joined: 01.05.12 |
Thanks Miloš! |
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but don't see the image in the post.
