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Diptera.info :: Identification queries :: Diptera (adults)
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Tabanidae Alps
clovis
#1 Print Post
Posted on 15-09-2019 23:26
Member

Location: North France, lille
Posts: 777
Joined: 08.06.10

Hi,

Someone gave me this Tabanidae from the Alps. Infortunatly I don't have the altitude. Close to a torrent.
To what I see on different angles, there is nolines on the eyes. No hairs on the eyes.
I can't find any relevant identification. Do you have any idea?
Sorry for the poor condition of the specimen.

Molines en Queyras, 31/07/2012
zupimages.net/up/19/37/fpo6.jpg
zupimages.net/up/19/37/8uxl.jpg
zupimages.net/up/19/37/lmoh.jpg
 
Sergiy Filatov
#2 Print Post
Posted on 19-09-2019 23:10
Member

Location: Kharkiv, Ukraine
Posts: 258
Joined: 22.10.10

I would never be 100% sure about eye bands looking at a dry specimen but absence of the stripes+brownish sides of the abdominal tergites suggest Tabanus miki...
Cheers,
Sergiy
 
Zeegers
#3 Print Post
Posted on 22-09-2019 16:05
Member

Location: Soest, NL
Posts: 14245
Joined: 21.07.04

It is very tricky, not to say impossible, to judge the number of bands from pictures from dead animals..... If the specimen is still available, I'd like to see an lateral closeup of the head, showing the occiput.

Thanks


Theo
 
clovis
#4 Print Post
Posted on 02-10-2019 15:08
Member

Location: North France, lille
Posts: 777
Joined: 08.06.10

sorry for the long delay, I was quite taken last week.

Here is the close up (no easy to do, I guess you are looking at the pilosity)

I noticed for the eyes bands: I have a large number of T bromius, and I can see the eye band on less than half of them!

zupimages.net/up/19/40/sb2w.jpg
I can make other pictures.
 
libor
#5 Print Post
Posted on 02-10-2019 18:20
Member

Location: western Bohemia
Posts: 1100
Joined: 30.05.09

Dried specimens are losting eyebands very often. You can see them after refreshing, e.g., in water...
 
clovis
#6 Print Post
Posted on 06-10-2019 18:30
Member

Location: North France, lille
Posts: 777
Joined: 08.06.10

Thanks, I'm doing so right now! TumbsUp
 
clovis
#7 Print Post
Posted on 07-10-2019 10:01
Member

Location: North France, lille
Posts: 777
Joined: 08.06.10

Really efficient technique!
zupimages.net/up/19/41/7bi9.jpg
3 bands then, that lead me to T tergestinus
 
Zeegers
#8 Print Post
Posted on 07-10-2019 17:55
Member

Location: Soest, NL
Posts: 14245
Joined: 21.07.04

I understand, but no, no way.

No it has three bands, my gut feeling is proven right: it is a female Hybomitra, which somehow lost the hairs on the eye.


Theo
 
clovis
#9 Print Post
Posted on 07-10-2019 22:07
Member

Location: North France, lille
Posts: 777
Joined: 08.06.10

Zut! Didn't see that coming when I first try to ID it!
I'll try with this genus!

By the way, congratulation for the Tabanidae dutch key! Really really nice to have all those drawings and pictures, that are often so missing in other keys.
A bit sad that it isn't in English, but online translator give some understantable translation (if you more or less know what to look at) TumbsUp
 
Zeegers
#10 Print Post
Posted on 08-10-2019 07:37
Member

Location: Soest, NL
Posts: 14245
Joined: 21.07.04

Thank you, tthank you.

We are working on an English version, for all Tabanomorpha !

Theo
 
clovis
#11 Print Post
Posted on 09-10-2019 15:50
Member

Location: North France, lille
Posts: 777
Joined: 08.06.10

Not so easy. I balance between H expollicata or H acuminata. But I guess I am wrong on something, those two species appaer to be saline species, not sure we can find thi in the middle of the Alps.

The red extend until half the third tergite.
 
Zeegers
#12 Print Post
Posted on 09-10-2019 20:02
Member

Location: Soest, NL
Posts: 14245
Joined: 21.07.04

As you said, can ‘t be. Moreover, the stem of the haltere is dark.

It is H. momtana.

Theo
 
clovis
#13 Print Post
Posted on 11-10-2019 23:12
Member

Location: North France, lille
Posts: 777
Joined: 08.06.10

I was quite bad on this one. Thanks! TumbsUp
 
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