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Soortgroepen => Libellen => Libellelarven & huidjes (Exuviae) => Topic gestart door: IngridA op mei 15, 2014, 18:45:34 PM

Titel: Coenagrion puella-Larve?
Bericht door: IngridA op mei 15, 2014, 18:45:34 PM
I would like to know which species this is
It concerns this sighting
http://observado.org/waarneming/view/84447729 (http://observado.org/waarneming/view/84447729)
unsicher Hufeisen-Azurjungfer - Coenagrion puella observed at 2014-05-15 BRD - Cham (Landkreis)
gefunden im Gartenteich
Fotos:
(http://observado.org/fotonew/9/6562229.jpg)

(http://observado.org/fotonew/4/6562234.jpg)

(http://observado.org/fotonew/5/6562235.jpg)

thanks in advance Ingrid Altmann
Titel: Re: Coenagrion puella-Larve?
Bericht door: Ton van Haaren op mei 15, 2014, 20:11:22 PM
Hello Ingrid
it is either C. puella or C. pulchellum, but unfortunately both species are very difficult, if not impossible, to distinguish. the nodulus in the lamellae are somewhat darkened, which may lead to pulchellum. When I encounter such larvae I write them down to C. pulchellum/puella.
Maybe someone else can ID your larvae, but in my opinion larvae of this complex can only be identified when you study many larvae from the same habitat and they all share the same characteristics. Of course you can breed them to the adult stage or study the adults around the pond. However, a pond favours for puella.
Titel: Re: Coenagrion puella-Larve?
Bericht door: IngridA op mei 15, 2014, 20:21:09 PM
Hello Ton,
thank you very much for your explanation.
Until now I saw only C. puella at the pond.
But I´ll follow your suggestion and I´ll name the larva C. pulchellum/puella.
Titel: Re: Coenagrion puella-Larve?
Bericht door: ewoudploeg op mei 16, 2014, 16:44:38 PM
I agree. Best to write them to puella/pulchellum, with a minor preference for pulchellum due to the markings on the lamellae.
Titel: Re: Coenagrion puella-Larve?
Bericht door: IngridA op mei 16, 2014, 18:22:39 PM
Thanks for the confimation Ewoud.