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View Thread :: Identification queries :: Diptera (adults)
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Tabanidae > Silvius alpinus
nick upton
#1 Print Post
Posted on 22-03-2010 22:47

Location: Wiltshire, UK
Posts: 811
Joined: 12.03.10

Can anyone confirm that this large pale coloured Tabanid with psychedelic green eyes is Philipomyia aprica?

16.7.09 Lower Anso valley, Spanish Pyrenees.

Nick Upton
nick upton attached the following image:

Edited by nick upton on 27-11-2010 16:28
phil withers
#2 Print Post
Posted on 22-03-2010 23:49

Location: Lyon, France
Posts: 521
Joined: 04.03.08

I doubt it - Philipomyia aprica is very dark.
nick upton
#3 Print Post
Posted on 23-03-2010 00:05

Location: Wiltshire, UK
Posts: 811
Joined: 12.03.10

Thanks Phil. Might it be P. graeca then which looks paler and is known in the Pyrenees according to one report?
Lukasz Mielczarek
#4 Print Post
Posted on 23-03-2010 08:58
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Location: Poland, Krakow
Posts: 498
Joined: 27.09.06

Silvius sp. !
nick upton
#5 Print Post
Posted on 23-03-2010 11:40

Location: Wiltshire, UK
Posts: 811
Joined: 12.03.10

Many thanks Lukasz. Now I've found some photos of Silvius, I can see you are absolutely right, but I can't find much information online to know what species this might be in the Spanish Pyrenees (not very high, maybe 800m). The only spanish record/photo I have found is for Silvius alpina (also known as Silvius vituli) and it looks just right, but I don't know if there are other, similar species it could be. Maybe someone can help?
#6 Print Post
Posted on 23-03-2010 19:29

Location: western Bohemia
Posts: 1225
Joined: 30.05.09

There are two very similar yellowish Silvius species: S. alpinus and S. algirus. According my knowledge, S. algirus is not known from Spain. I did not see this species, so I cannot solve with certainity ID of this animal, but probably Silvius alpinus. Libor
nick upton
#7 Print Post
Posted on 23-03-2010 23:39

Location: Wiltshire, UK
Posts: 811
Joined: 12.03.10

Many thanks for your advice Libor. I can't find any S. algirus records in Spain on the internet, either, so this probably is Silvius alpinus based on the information I have now.
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