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Diptera.info :: Identification queries :: Diptera (adults)
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Which Dolichopus --> Dolichopus excisus
Auratus
#1 Print Post
Posted on 30-05-2013 19:22
Member

Location: Edam - Netherlands
Posts: 303
Joined: 24.05.10

 I found this Dolichopus yesterday (29-5-2013) in the Netherlands. For some reason i'm unable to find which species it is. Can anyone help me out?

Thanks in advance
Auratus attached the following image:


[125.09Kb]
Edited by Auratus on 04-06-2013 11:09
Greetings,

Jan
 
Auratus
#2 Print Post
Posted on 30-05-2013 19:25
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Location: Edam - Netherlands
Posts: 303
Joined: 24.05.10

 Hypopygium
Auratus attached the following image:


[177.59Kb]
Greetings,

Jan
 
Igor Grichanov
#3 Print Post
Posted on 03-06-2013 07:16
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Location: St.Petersburg, Russia
Posts: 1688
Joined: 17.08.06

 Dolichopus ?rupestris
Igor Grichanov
 
https://doli.vizrppnsuppl.com/
Auratus
#4 Print Post
Posted on 03-06-2013 18:53
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Location: Edam - Netherlands
Posts: 303
Joined: 24.05.10

 Thanks for your answer Igor, but I don't think it is right. I think the poor quality of the images may have misled you.

The lower postocular cilia of this Dolichopus are pale and for D. rupestris they should black as far as I know.

I tried to make some pictures in the daylight, but I fear my equipment is just not good enough.

So I will additionally list some of the key characteristics (hoping it will give a clue)

1. All femora and tibia yellow (Black at apex of hind femora)
2. Lower postocular cilia pale
3. Tarsi simple, hind metatars with > 2 dorsal setae
4. No long hairs on hind femur
5. Front tibia without long apico-ventral bristle
6. Antenna black (entirely)
7. Face silvery white and hairy (bit)

This brings me to D. albifrons in your key, which is as far as I know not known from The Netherlands
Auratus attached the following image:


[172.29Kb]
Greetings,

Jan
 
Auratus
#5 Print Post
Posted on 03-06-2013 18:53
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Location: Edam - Netherlands
Posts: 303
Joined: 24.05.10

 Second
Auratus attached the following image:


[191.77Kb]
Greetings,

Jan
 
Igor Grichanov
#6 Print Post
Posted on 04-06-2013 08:19
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Location: St.Petersburg, Russia
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 It is Dolichopus excisus which is unknown in Scandinavia.
Igor Grichanov
 
https://doli.vizrppnsuppl.com/
Auratus
#7 Print Post
Posted on 04-06-2013 08:52
Member

Location: Edam - Netherlands
Posts: 303
Joined: 24.05.10

 Thanks again Igor, that explains a lot.
Greetings,

Jan
 
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