Autor Thema: Which Amaurobius? => Amaurobius sp. (pot. erberi)  (Gelesen 228 mal)

Raffaele Falato

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Gorgoglione, Province of Matera, Basilicata, Southern Italy.

Discovery date: December 5, 12 noon.
Habitat: 900 m - in the village cemetery, in its shelter under a stone slab of a wall dominated by shrubs and cemetery plants.
Size: 7mm measured.

Good evening,
does this female of Amaurobius belong to one of the Italic species described and identifiable?
Thanks.
Raf

P.S. I apologize for the quality of the photos showing the epigyne, but it was cloudy, it was quite cold and the hand was not steady (also due to a few too many cigarettes  :-\).

ama1.jpg
*ama1.jpg (30.45 KB . 654x629 - angeschaut 86 Mal)
ama2.jpg
*ama2.jpg (12.47 KB . 296x414 - angeschaut 83 Mal)
ama3.jpg
*ama3.jpg (21.4 KB . 357x542 - angeschaut 83 Mal)
ama4.jpg
*ama4.jpg (8.54 KB . 239x285 - angeschaut 84 Mal)
ama5.jpg
*ama5.jpg (10.29 KB . 293x307 - angeschaut 85 Mal)
« Letzte Änderung: 2020-12-16 15:29:28 von Tobias Bauer »

Simeon Indzhov

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Re: Which Amaurobius?
« Antwort #1 am: 2020-12-14 20:35:07 »
Possibly erberi. Amaurobius females without dissection are somewhat problematic.
Simeon

Raffaele Falato

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Re: Which Amaurobius?
« Antwort #2 am: 2020-12-14 22:42:44 »
Thanks Simeon.

I am becoming more and more convinced of one thing: the small sites (such as the village cemetery) in the area of ​​my research host populations of a single species of spiders. Let me explain: in the first months of 2020 I found various female Amaurobius specimens in the cemetery under stones close to each other and one of them was genitally identified in Italy as erberi. In addition, you yourself, dear Simeon, have identified me on this forum the only male found in the same place, near the shelters of the females, as erberi. So I am convinced, after your last determination, that a population of Amaurobius erberi lives permanently in the cemetery of Gorgoglione.
Could all this be plausible?

Greetings.
Raf

Tobias Bauer

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Re: Which Amaurobius?
« Antwort #3 am: 2020-12-14 22:48:19 »
Yes, certainly, especially if you always look at similar microhabitats. In Croatia, I have only found A. erberi , and no other species of the genus, under stones in our holiday village during a study trip of our university, and I probably turned and looked under ~ 1000 stones.
« Letzte Änderung: 2020-12-15 12:23:41 von Tobias Bauer »

Raffaele Falato

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Re: Which Amaurobius?
« Antwort #4 am: 2020-12-14 23:35:04 »
Thanks to you too Tobias.
And yes, by now I have raised all the stones of the cemetery, excluding the gravestones (black humor), but I continue to do so because every time I find something new there (besides the usual erberi). It is one of the best sites.
Greetings.
Raf