Diptera.info :: Identification queries :: Diptera (adults)
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 Lasiomma sp.?
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| Rui Andrade |
Posted on 24-02-2011 21:19
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 Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
I’ve collected 4 male anthomyiids swarming below the branches of a Quercus suber. Do they belong to Lasiomma sp.? location: Porto, Portugal date: 23/02/2011 Rui Andrade attached the following image:  [62.49Kb] |
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| Rui Andrade |
Posted on 24-02-2011 21:20
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
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Rui Andrade attached the following image:  [69.64Kb] |
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| Rui Andrade |
Posted on 24-02-2011 21:21
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
The tree where they were swarming:
Rui Andrade attached the following image:  [136.66Kb] |
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| javanerkelens |
Posted on 24-02-2011 21:30
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 Member Location: Netherlands Posts: 2962 Joined: 18.10.07 |
It is Lasiomma indeed. I also think to see long pv on hindfemur, so could fit to L.seminitidum. But to be sure i have to see how many ad setae there are on the hindtibia. Joke |
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| Rui Andrade |
Posted on 24-02-2011 21:53
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
I hope this helps:
Rui Andrade attached the following image:  [67.02Kb] |
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| javanerkelens |
Posted on 24-02-2011 22:21
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Member Location: Netherlands Posts: 2962 Joined: 18.10.07 |
I said ad setae, but meant av setae (sorry) But on the first crop we can see two strong av (one probable broken) and it just fit to L. seminitidum.! Joke |
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| Rui Andrade |
Posted on 24-02-2011 23:05
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Thanks Joke. I want to show you one more photo (a bad one) of another specimen that seems to show that it also has only 2 strong av. Is there another possible species with 2 av?
Rui Andrade attached the following image:  [52.67Kb] |
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| javanerkelens |
Posted on 25-02-2011 00:07
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Member Location: Netherlands Posts: 2962 Joined: 18.10.07 |
From the species i know (and discriped by Ackland), L.seminitidum has long pv on hindfemur and at most 3 av on hindtibia....so 2av is possible. Your species has long pv on hindfemur, so likely it is L.seminitidum. There are more Lasiomma species, but the only one i know are discriped from Neartic region. Joke |
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| Rui Andrade |
Posted on 25-02-2011 00:43
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Thank you so much for your time Joke! |
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