Dolichovespula sylvestris?

Dolichovespula sylvestris?

Postby Jann Wuebbenhorst on 15 Feb 2018, 20:23

Is it possible to determine this Dolichovespula male? I found it in the vicinity of a nest of D. saxonica, so I first thought of this species.
But the colouring of Clypeus and other parts of the head seem to be more like sylvestris?

Found in a garden on Echinops; eastern Lower Saxony, Germany; 30.07.2017

best wishes,
Jann
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Dolichovespula_sylvestris_cf_m_20170730_2958k.jpg
Dolichovespula_sylvestris_cf_m_20170730_2957k.jpg
Dolichovespula_sylvestris_cf_m_20170730_2946k.jpg
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Re: Dolichovespula sylvestris?

Postby Darek Ogrodnik on 16 Feb 2018, 15:02

D. sylvestris male is correct.
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Re: Dolichovespula sylvestris?

Postby Jann Wuebbenhorst on 16 Feb 2018, 20:25

Thank you very much, Darek! 8)
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Re: Dolichovespula sylvestris?

Postby Libor on 19 Feb 2018, 00:20

I disagree. It is a male and they are more variable than workers. I have many saxonica males with such coloration. Exact ID is possible according to different punctures on clypeus, which is not well visible on these pictures...
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Re: Dolichovespula sylvestris?

Postby Darek Ogrodnik on 19 Feb 2018, 12:58

Libor wrote: I have many saxonica males with such coloration.
Libor

You mean coloration of clypeus or coloration of entire body?
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Re: Dolichovespula sylvestris?

Postby Libor on 19 Feb 2018, 15:37

Both clypeus and gaster.
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Re: Dolichovespula sylvestris?

Postby Darek Ogrodnik on 19 Feb 2018, 19:24

Would you post some photos?
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Re: Dolichovespula sylvestris?

Postby Jann Wuebbenhorst on 22 Feb 2018, 19:27

I can only add two photos of this specimen in side view, which probably won't help that much; but no better view of the clypeus, unfortunately.
Jann
Attachments
Dolichovespula_sylvestris_m_20170730_2948k.jpg
Dolichovespula_sylvestris_m_20170730_2945k.jpg
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Re: Dolichovespula sylvestris?

Postby Darek Ogrodnik on 23 Feb 2018, 12:31

For me D. sylvestris is obvious :wink: -not only pattern different than saxonica but also brighter hue of yellow.
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