Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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 Agromyzidae larva?
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| jorgemotalmeida |
Posted on 13-09-2007 20:47
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Hi Today I spotted in some leaves of Citrus lemon signs of larva.. as you can see the gallery that larva created on leaf. It has a very high reflective material as well. That?s why the leaf seems to be shining... This larva was hidden below a small "sphere" of silk. It is small measuring about 3 mm. Do you agree? jorgemotalmeida attached the following image:  [185.78Kb] |
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| jorgemotalmeida |
Posted on 13-09-2007 20:48
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
again:
jorgemotalmeida attached the following image:  [177.29Kb] |
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| Kahis |
Posted on 13-09-2007 21:02
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
It doesn't really look like a fly larva. Perhaps Coleoptera instead?
Kahis |
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| Tony Irwin |
Posted on 13-09-2007 21:12
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 Member Location: Norwich, England Posts: 7282 Joined: 19.11.04 |
I think this is more likely to be the citrus leafminer, Phyllocnistis citrella (Lepidoptera: Gracillariidae). Agromyzidae hardly ever attack tree leaves - almost all mines in tree leaves are made by moths. The moth larvae are specialised miners, and lack most of the features that distinguish normal caterpillars.
Tony ---------- Tony Irwin |
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| jorgemotalmeida |
Posted on 13-09-2007 21:18
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
thanks Kahis and Tony. I've just started to look larvas as well. I know identify some but not all as you see. |
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| Paul Beuk |
Posted on 14-09-2007 08:51
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
The frass in the mine is in a single line which rules out Agromyzidae, who leave thir frass in alternate lines to the left and to the right of the mine (as long as it is a corridor mine).
Paul - - - - Paul Beuk on https://diptera.info |
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| jorgemotalmeida |
Posted on 14-09-2007 10:40
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
like this one, Paul? http://www.inra.f...032124.jpg Edited by jorgemotalmeida on 14-09-2007 10:41 |
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| Kahis |
Posted on 14-09-2007 10:51
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Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
Paul Beuk wrote: The frass in the mine is in a single line which rules out Agromyzidae, who leave thir frass in alternate lines to the left and to the right of the mine (as long as it is a corridor mine). Well, that is only a guideline, not a hard rule 
Kahis |
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| jorgemotalmeida |
Posted on 14-09-2007 11:06
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
i saw photos of possible larva agromyzid with a single line... http://www.inra.f...032122.jpg Agromyzidae gallery made by their larva, right? |
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| Tony Irwin |
Posted on 14-09-2007 18:34
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Member Location: Norwich, England Posts: 7282 Joined: 19.11.04 |
There is an excellent site covering western european leafminers, including Agromyzidae at http://www.bladmi... I'll submit it as a link, but Paul will need to decide which category to put it under. The site is (nearly) bilingual in Dutch and English, and is very well illustrated with photos of mines. There is a host plant and insect index, and keys to mines. Edited by Tony Irwin on 14-09-2007 18:39 Tony ---------- Tony Irwin |
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| jorgemotalmeida |
Posted on 14-09-2007 18:59
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
fabulous site! I read right now and it is very, very interesting. Now I know who are the guilties on leaves. For some cases, of course. |
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| crex |
Posted on 14-09-2007 20:32
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 Member Location: Sweden Posts: 1996 Joined: 22.05.06 |
British Leafminers ... |
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| jorgemotalmeida |
Posted on 14-09-2007 21:24
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
thanks. This links shows one thing that surprised me. I didn't expect that Anthomyiidae larva could be leafminers! I thought this family is only associated with dung , which is not entirely true! This is the kind of things that I like in Diptera. The fascinating and amazing niches thar they can have in Nature.  |
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