Metellina ID mogelijk? -> Female alleen microscope

Gestart door sandermol, september 12, 2022, 17:18:46 PM

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sandermol

Ik zou graag willen weten welke soort dit is.
Het gaat om deze waarneming: https://waarneming.nl/observation/254671938/.
1 Metellina spec. imago
datum: 2022-09-12
locatie: Breda - Mastbosch (NB)

foto's:







Ik hoop dat de foto's goed genoeg zijn voor verdere determinatie.
Ik ben geen expert, en maak nog veel fouten.

https://waarneming.nl/users/733666/observations

SimeonI

Females are best identifiable throught the vulva and in autumn both species come in question.
Simeon

Weia

Lijkt mij segmentata omdat de gele banden op de buik niet helemaal naar voren reiken. Maar misschien is dat kenmerk intussen gesneuveld?
Groeten, Weia
rode bosmieren: https://forum.waarneming.nl/index.php/topic,342651.0.html
pagina over variatie bij een paar lastige libellensoorten: www.at-a-lanta.nl/weia/LibellenVariatie.html
motmugjes van foto determineren: http://www.at-a-lanta.nl/weia/Motmuggen.html
familie motmuggen systematisch http://forum.waarneming.nl/smf/index.php?topic=378882.0

SimeonI


sandermol

Thanks for the comments Simeon and Weia. I was hoping the vulva was good enough visible, as I want to try to capture insects in the wild as much as possible. Certainly not at a stage to capture them.

Would it be possible from such angle, maybe closer next time?
Ik ben geen expert, en maak nog veel fouten.

https://waarneming.nl/users/733666/observations

SimeonI

Closer here means microscope and preferably dissection. Vulva refers here to the internal structures of the female spider's copulatory organs. The epigynes of Metellina are small and weakly sclerotised and usually on a somewhat dark background.

Males, on the other hand, are very easy to identify and actually have somatic differences (front leg proportions and hairs).

sandermol

Citaat van: SimeonI op september 14, 2022, 07:35:44 AM
Closer here means microscope and preferably dissection. Vulva refers here to the internal structures of the female spider's copulatory organs. The epigynes of Metellina are small and weakly sclerotised and usually on a somewhat dark background.

Males, on the other hand, are very easy to identify and actually have somatic differences (front leg proportions and hairs).

Amazing information, thank you! I will keep an eye for the male species  :blink:
Ik ben geen expert, en maak nog veel fouten.

https://waarneming.nl/users/733666/observations