Thread subject: Diptera.info :: ?Dasyrhamphis umbrinus (Tabanidae) => Nemorius vitripennis (m)

Posted by basileus on 04-06-2023 11:54
#1

Is it possible to confirm or deny the correctness of the definition based on such a photo? Found in June 2023. Western region of Ukraine.

Edited by basileus on 06-06-2023 18:59

Posted by Zeegers on 05-06-2023 17:23
#2

Much, much better. Seems to be the male of Silvius latifrons, see the other post.
Did you collect any of this material ?

Great find (if correct).


Theo

Posted by basileus on 05-06-2023 20:44
#3

Zeegers wrote:
Much, much better. Seems to be the male of Silvius latifrons, see the other post.
Did you collect any of this material ?

Great find (if correct).


Theo


Thank you, I don't collect it! Next time I do it!

Posted by basileus on 06-06-2023 12:48
#4

Zeegers wrote:
Much, much better. Seems to be the male of Silvius latifrons, see the other post.
Did you collect any of this material ?

Great find (if correct).


Theo


Today I catch one of them.

Posted by basileus on 06-06-2023 12:49
#5

basileus wrote:
Zeegers wrote:
Much, much better. Seems to be the male of Silvius latifrons, see the other post.
Did you collect any of this material ?

Great find (if correct).


Theo


Today I catch one of them.

Posted by Zeegers on 06-06-2023 18:37
#6

Amazing, well done !!
That said, it is now clear that that second antennal segment is elongated, not short as it appeared to be in the older pics. This was the 1 % doubt.

So it 100 % is Nemorius vitripennis, which is still a great find, but not as spectacular as latifrons. The northern border of its distribution is (or was in 1972) “ ….. and the Ukrainian Transkarpathians, Chust region”. if that makes any sense to you.

Theo

Edited by Zeegers on 06-06-2023 18:37

Posted by basileus on 06-06-2023 19:04
#7

Zeegers wrote:
Amazing, well done !!
That said, it is now clear that that second antennal segment is elongated, not short as it appeared to be in the older pics. This was the 1 % doubt.

So it 100 % is Nemorius vitripennis, which is still a great find, but not as spectacular as latifrons. The northern border of its distribution is (or was in 1972) “ ….. and the Ukrainian Transkarpathians, Chust region”. if that makes any sense to you.

Theo


I noticed about ten specimens of these tabanidae (they were sitting on the road bridge over the Tisza River) twenty kilometers from the location you mentioned here (Chust).
so, thank you, Theo, for your help in identifying the species.

Posted by John Carr on 06-06-2023 19:20
#8

Zeegers wrote:
So it 100 % is Nemorius vitripennis, which is still a great find, but not as spectacular as latifrons. The northern border of its distribution is (or was in 1972) “ ….. and the Ukrainian Transkarpathians, Chust region”. if that makes any sense to you.

Theo


According to Wikipedia German Chust = English Khust = Ukrainian Хуст. 48°10′N 23°17′E.

Posted by Zeegers on 06-06-2023 19:27
#9

Tisza, so that is at the Hungarian border ? Nice.

Theo

Posted by basileus on 07-06-2023 16:04
#10

Zeegers wrote:
Tisza, so that is at the Hungarian border ? Nice.

Theo


Yes, <20 km to Hungarian and 5km to Romanian borders.

Posted by basileus on 07-06-2023 16:05
#11

John Carr wrote:
Zeegers wrote:
So it 100 % is Nemorius vitripennis, which is still a great find, but not as spectacular as latifrons. The northern border of its distribution is (or was in 1972) “ ….. and the Ukrainian Transkarpathians, Chust region”. if that makes any sense to you.

Theo


According to Wikipedia German Chust = English Khust = Ukrainian Хуст. 48°10′N 23°17′E.


Absolutely correct!