Forum van Waarneming.nl

Soortgroepen => Wantsen, Cicaden en Plantenluizen => Bugs outside of NL and BE (observado.org) => Topic gestart door: IngridA op augustus 19, 2019, 18:22:16 PM

Titel: Nabis rugosus?
Bericht door: IngridA op augustus 19, 2019, 18:22:16 PM
I would like to know which species this is
It concerns this observation
https://observation.org/waarneming/view/178218468 (https://observation.org/waarneming/view/178218468)
unsicher Landräuber - Nabis rugosus observed at 2019-08-02 BRD - Cham (Landkreis)
Fotos:
(https://observation.org/fotonew/6/22820646.jpg)

(https://observation.org/fotonew/8/22820648.jpg)

(https://observation.org/fotonew/9/22820649.jpg)

thanks in advance Ingrid Altmann
Titel: Re: Nabis rugosus?
Bericht door: jck op augustus 19, 2019, 22:48:05 PM
If you read the species info page, your bug has a pronotum with a length: width ratio of 1:1 (photo 1) which seems to fit N. rugosus. It also says that segment 2 of the antenna should be longer than the maximum width of the pronotum. It may just be the angle in photo 1 but there it looks like the segment is almost exactly the same length.

Not much help, I'm afraid :blink:

James
Titel: Re: Nabis rugosus?
Bericht door: IngridA op augustus 20, 2019, 10:35:48 AM
It also says that segment 2 of the antenna should be longer than the maximum width of the pronotum. It may just be the angle in photo 1 but there it looks like the segment is almost exactly the same length.

Yes really James! So the determination is a bit complicated ...
Thanks for your effort!
Titel: Re: Nabis rugosus?
Bericht door: Marco de Haas op augustus 21, 2019, 20:00:28 PM
I would say Nabis rugosus is correct  :duim:

CiteerIt may just be the angle in photo 1 but there it looks like the segment is almost exactly the same length.
I am pretty sure that the angle is the 'problem', they nearly always have their antennae a bit upwards directed, so the segment looks shorter than it should be.
Titel: Re: Nabis rugosus?
Bericht door: IngridA op augustus 22, 2019, 14:13:37 PM
Thank you very much Marco!  :blink: