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View Thread :: Identification queries :: Diptera (adults)
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Tabanidae ID
#1 Print Post
Posted on 15-03-2013 10:36

Posts: 77
Joined: 19.08.12

2008-07-17, Valle Argentera, Torino, Italy

May you help me with this horse-fly?

Thank you in advance. Smile Smile
Justafly attached the following image:

Sergiy Filatov
#2 Print Post
Posted on 15-03-2013 14:46

Location: Kharkiv, Ukraine
Posts: 246
Joined: 22.10.10

Hello. It looks like Tabanus quatuornotatus, but I don't sure. Do you have more angles?
#3 Print Post
Posted on 15-03-2013 14:49

Posts: 77
Joined: 19.08.12

No, I have only this shot.

Anyway, thank you.
#4 Print Post
Posted on 16-03-2013 10:54
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Location: Sweden, Umeå
Posts: 440
Joined: 19.01.12

It has hairy eyes, so then i think it is Hybomitra
Sergiy Filatov
#5 Print Post
Posted on 16-03-2013 11:22

Location: Kharkiv, Ukraine
Posts: 246
Joined: 22.10.10

Actually Tabanus spp. of quatuornotatus group have hairy eyes too. My doubts was exactly about the pubescense of the eyesWink Shape of the frontal calli and polished subcallus strongly suggests T. quatuornotatus (see here http://www.dipter...to_id=3393).
#6 Print Post
Posted on 16-03-2013 20:13

Location: western Bohemia
Posts: 897
Joined: 30.05.09

Seregiy, I think only two possibilities are on the table: (1) Eyes are haired, so T. quatuornotatus (no other species of this group in central Italy has three big black calli and polishes subcallus. (2) Flesh and light are playing any game with us, then eyes naked = T. glaucopis.
So, Justafly, can you enlarge pic of the right eye to see if the eyes are naked or haired.
#7 Print Post
Posted on 17-03-2013 01:39
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Location: Viseu - PORTUGAL
Posts: 9226
Joined: 05.06.06

eyes clearly haired - this is a female of Tabanus quatuornotatus.
> lower callus squared and dull black
> subcallus polished black
> 3 band eyes
> hairy eyes
#8 Print Post
Posted on 17-03-2013 18:45

Posts: 77
Joined: 19.08.12

Yes, I've have enlarged the photo and checked eyes are clearly hairy!

Thank you and ... muito obrigado! SmileSmile
Edited by Justafly on 17-03-2013 18:49
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