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 Seaweed fly Fucellia sp. Anthomyiidae
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| Filex |
Posted on 26-01-2008 23:37
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Member Location: Posts: 70 Joined: 22.08.07 |
Hi This fly was found between the weeds left by the sea in a beach of the Ebro delta in Tarragona, Spain at the end of April 2007. Is this a Heleomyzid? Thanks in advance Miquel Filex attached the following image:  [72.35Kb] Edited by Filex on 02-02-2008 13:30 |
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| Filex |
Posted on 27-01-2008 22:01
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Member Location: Posts: 70 Joined: 22.08.07 |
Second chance for this fly
Edited by Filex on 02-02-2008 13:31 |
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| Andrzej |
Posted on 29-01-2008 20:06
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Member Location: Poland Posts: 2408 Joined: 05.01.06 |
Hmm!. Unfortunately it is not a Heleomyzid fly. Three orbitals, postverticals divergent, spines on fore and midtibiae. Andrzej  |
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| Nikita Vikhrev |
Posted on 01-02-2008 21:03
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 Member Location: Moscow, Russia Posts: 9459 Joined: 24.05.05 |
Hi Miquel, it is Anthomyiidae, genus Fucellia, most probably F.tergina Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Filex |
Posted on 02-02-2008 13:42
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Member Location: Posts: 70 Joined: 22.08.07 |
Thanks a lot Nikita. I have seen your pictures of Fucellia in the gallery, which coincided in habitat! Interestingly, so this is a genus of seashore seaweed flies. Even though this might not be accurate, Fauna Europaea only lists two species for Spanish mainland: maritima and tergita. I only have the old Seguy's Faune de France as literature and tergita seems not to be included. How can tergita from maritima be distinguished? Miquel |
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| Nikita Vikhrev |
Posted on 02-02-2008 15:00
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Member Location: Moscow, Russia Posts: 9459 Joined: 24.05.05 |
It isn't easy even having this female in hand, look: - Eyes smaller, parafacial and gena therefore wider, gena 0.6?0.7 times the height of an eye. Some of the pv hairs of f3 longer than width of t3. Several hairs present between the two rows of presutural acrostichal setae - F.maritima Haliday ? Eyes larger, parafacial and gena therefore narrower, genae, 0.5?0.65 times the height of an eye. None of the pv hairs of f3 longer than width of t3. No hairs present between the two rows of presutural acrostichal setae - F.tergina Zetterstedt (According Michael Ackland key) Nikita Vikhrev - Zool Museum of Moscow University |
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