Diptera.info :: Identification queries :: Diptera (adults)
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 Rivellia hispanica
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| Manuel Lopez |
Posted on 23-05-2012 17:31
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 Member Location: Granada Posts: 1651 Joined: 03.09.11 |
4,2 mm. Taken this morning in Granada coast. I think that could be Rivellia hispanica. I don't know the sex. Can you help me ? Thanks Manuel Lopez attached the following image:  [114.12Kb] Edited by Manuel Lopez on 24-05-2012 08:41 |
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| Manuel Lopez |
Posted on 23-05-2012 17:36
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Member Location: Granada Posts: 1651 Joined: 03.09.11 |
Another fly
Manuel Lopez attached the following image:  [189.71Kb] |
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| John Carr |
Posted on 24-05-2012 01:15
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 Member Location: Massachusetts, USA Posts: 1518 Joined: 22.10.10 |
I can help with sex. Typical of superfamily Tephritoidea, Rivellia females have an external oviscape. Now you have to decide whether the short oviscape is hidden from this angle or absent. |
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| Maherjos |
Posted on 24-05-2012 03:00
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 Member Location: Motril (Granada) España Posts: 997 Joined: 02.09.09 |
Congratulations Manuel.! At last you've photographed. I guess in The Pond. No doubt the picture above female. In the picture below male, are photos of two different specimens. If you do not know, see the following article is very enlightening. http://www.dipter...oad_id=132 A hug, pepemarin Edited by Maherjos on 24-05-2012 11:38 |
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| Manuel Lopez |
Posted on 24-05-2012 08:53
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Member Location: Granada Posts: 1651 Joined: 03.09.11 |
Thanks John and José 
Manuel |
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| Nosferatumyia |
Posted on 24-05-2012 12:32
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 Member Location: Kiev Posts: 1987 Joined: 28.12.07 |
Sorry, how do you know the sex???
Valery |
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| Paul Beuk |
Posted on 24-05-2012 13:08
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 Super Administrator Location: Netherlands Posts: 11898 Joined: 11.05.04 |
There is sexual dimorphism: the apical spot in the female is not or very narrowly connected with the preapical band, in the male it is broadly connected. I only noticed the character a few weeks back and now have some specimens on my desk that seem to confirm this, as does the picture in THIS thread.. 
Edited by Paul Beuk on 24-05-2012 13:19 Paul - - - - Paul Beuk on www.diptera.info |
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| Maherjos |
Posted on 24-05-2012 18:01
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Member Location: Motril (Granada) España Posts: 997 Joined: 02.09.09 |
Nosferatumyia wrote: Sorry, how do you know the sex??? Hello, Valery. It was you, who identified the first Riveilla I photographed. http://www.dipter...ost_162932 And it was you, who I linked the article that shows the differences in their gender. https://sites.goo...edirects=0  And as the photos of wings which are published in this article, the difference between sexes Riveilla, not in his the preapical band. Is in the spots on their wings. This difference, I have seen in the pictures that I could make the Riveilla in intercourse, of which I enclose two examples. I believe the male is always above the female. No?.   Also, I thought to appreciate, than males (the one above), smaller than the largest female (below) I think the photos of Manuel Lopez, corresponding to two different copies. The first picture is the female. The second picture is the male Am I wrong in something, or my estimates are correct.? I clarify once again, I'm not a specialist, nor do I have entomological training. I'm just an amateur photographer. Best regards. Edited by Maherjos on 24-05-2012 18:17 |
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| Nosferatumyia |
Posted on 24-05-2012 19:01
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Member Location: Kiev Posts: 1987 Joined: 28.12.07 |
Sorry, I have only a few flies in my collection and thus could not decide, if it is just an individual variability. Thank you!
Valery |
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| Maherjos |
Posted on 24-05-2012 19:21
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Member Location: Motril (Granada) España Posts: 997 Joined: 02.09.09 |
Nosferatumyia wrote: Sorry, I have only a few flies in my collection and thus could not decide, if it is just an individual variability. Thank you! Thank you always for your help and share their knowledge. I will try to improve the data you have in your collection .... Best wishes |
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