Forum van Waarneming.nl

Soortgroepen => Kevers => Beetles outside of NL and BE => Topic gestart door: IngridA op april 26, 2016, 18:38:15 PM

Titel: Cyphon-Larve?
Bericht door: IngridA op april 26, 2016, 18:38:15 PM
I would like to know which species this is
It concerns this observation
http://observado.org/waarneming/view/116989158 (http://observado.org/waarneming/view/116989158)
unsicher Cyphon spec. observed at 2016-04-21 BRD - Cham (Landkreis)

Länge: 9mm

Fotos:
(http://observado.org/fotonew/2/10646232.jpg)

(http://observado.org/fotonew/3/10646233.jpg)

thanks in advance Ingrid Altmann
Titel: Re: Cyphon-Larve?
Bericht door: Ton van Haaren op april 26, 2016, 18:41:24 PM
In my opinion, Scirtidae are not that easy as larvae and usually needs detailed study of the mouthparth. However, as this larva is broad throughout I think it is closer to Scirtes sp. The larvae of Cyphon is generally smaller and Helodes for instance is broad in the anterior part and progressively becoming smaller. Perhaps Jan Cuppen has another opinion.
Titel: Re: Cyphon-Larve?
Bericht door: IngridA op april 26, 2016, 19:13:46 PM
Thank you again Ton!
So I will note Sciritidae spec.
Titel: Re: Cyphon-Larve?
Bericht door: jan cuppen op april 27, 2016, 10:19:24 AM
It is very probably a Scirtes-species when found in stagnant water, an Elodes-species when found in running water.
Titel: Re: Cyphon-Larve?
Bericht door: IngridA op april 27, 2016, 15:19:31 PM
Hello Jan,
a beaver dammed the creeked at this Point and after the damm the water flows very slowly.
I found the larva in a little bay, I think with stagnant water.
Thank you very much for your help!