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Diptera.info :: Identification queries :: Diptera (adults)
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Drosophila, Beer Trap, Netherlands
Paul Hoekstra
#1 Print Post
Posted on 30-08-2020 20:46
Member

Location: Netherlands
Posts: 79
Joined: 03.07.11

Which Drosophila could this be? I get stuck with the key in Baechli et al. 2004

Beer Trap (23-25)-8-2020 in park Almere, Netherlands.

Thanks in advance

https://waarnemin...199112649/.

waarneming.nl/media/photo/030/323/30323132.jpg
waarneming.nl/media/photo/030/323/30323133.jpg
waarneming.nl/media/photo/030/323/30323134.jpg
 
Jan Maca
#2 Print Post
Posted on 31-08-2020 07:06
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Posts: 1296
Joined: 25.03.10

Abdominal pattern of this specimen is somewhat peculiar, perhaps because it is still a bit teneral. However, oviprovector shape and 4v-index (about 1.0) show that it is D. funebris.
 
Paul Hoekstra
#3 Print Post
Posted on 31-08-2020 21:38
Member

Location: Netherlands
Posts: 79
Joined: 03.07.11

Thank you! I got stuck in the key at that species, but this one was different from normal specimens of D. funebris, that's why I thought I was wrong.

p.s. What is the 4v-index?

 
Jan Maca
#4 Print Post
Posted on 01-09-2020 06:31
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4v-index is the length ratio of the apical section of M1
to the preapical section of this vein
 
djo
#5 Print Post
Posted on 04-09-2020 19:43
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Location: Edinburgh, UK
Posts: 192
Joined: 16.05.11

I would have guessed Hirtodrosophila confusa!
 
obbard.bio.ed.ac.uk/
Jan Maca
#6 Print Post
Posted on 07-09-2020 00:33
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Location:
Posts: 1296
Joined: 25.03.10

Sorry, this specimen confused me. It is H. confusa - nomen omen.
 
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29 April 2026 19:40
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