Autor Thema: Alopecosa albofasciata, subadult or adult? <= sub-adult females  (Gelesen 171 mal)

Raffaele Falato

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Gorgoglione, Province of Matera, Basilicata, Southern Italy.

Discovery date: second half of April, morning.
Habitat: in the countryside, in the low grass and in the dry leaf litter.
Size: 9mm measured.

Greetings to the forum.
This April I find Alopecosa albofasciata everywhere in the countryside.
The two female specimens in the photos are the larger ones.

My question is: from the mediocre ventral photos is it possible to determine if they are still subadult or are they already adults?

I would add that yesterday April 27 I also found an adult male (very beautiful), the first this year. But females 10 mm or more in size not even one, although I regularly visit the discovery sites.  :(

Thank you.
Raf

Female 1

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Female 2

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« Letzte Änderung: 2021-04-28 21:55:22 von Raffaele Falato »

Simeon Indzhov

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Re: Alopecosa albofasciata, subadult or adult?
« Antwort #1 am: 2021-04-28 19:40:24 »
I think both are subadult. The epigyne of this particular Alopecosa is larger. The first one might be in premoult as there is a discoloured area around the preepigyne which indicates a developing epigyne underneath.
Simeon

Raffaele Falato

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Re: Alopecosa albofasciata, subadult or adult?
« Antwort #2 am: 2021-04-28 20:04:05 »
Thanks Simeon for the detailed answer.  :D

I thought that they were still subadult, I always felt that the adult size (10-12 mm) indicated by the wiki and UniBe was correct.

However, this means that I still have to keep the discovery sites under control, it will not be long before the adult stage arrives (maybe in first half of May); adult males are already around.

Excuse me Simeon (or anyone who knows) if I ask you another question: is it possible to recognize the epigyne of an adult female with the spi-pot?

Raf

Simeon Indzhov

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I think the equipment you have is perfectly fine for recognising adult females of Alopecosa albofasciata

Raffaele Falato

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Well, yes, my equipment is highly professional, I have also had requests from NASA for the spiders from Mars: two clear plastic little cups, a piece of Styrofoam and a square of food film held up with a rubber band.

Thanks again, Simeon.  :)
Raf

Raffaele Falato

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Good evening.
I avoid creating another thread and post my question here: today I found this female (10mm) in a meadow (this species is practically everywhere), is it finally an adult specimen?
Thanks and sorry for my insistence, I am looking for an adult female to complete the board on this species.
Raf

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