Thread subject: Diptera.info :: Gnaphosidae? answered: Pterotricha lentiginosa

Posted by markop on 28-11-2006 10:07
#1

This is the spider I was telling you about, Jorge. Is it a Gnaphosid?

locality: on the island of Crete, in Greece, at an altitude of 400ft.
date: November 26th, 2006
size: 10-15mm (body only)
habitat: pile of rocks

I've also uploaded another capture of the same spider on flickr:
http://www.flickr...309345457/

Edited by markop on 30-11-2006 10:55

Posted by markop on 28-11-2006 10:09
#2

Another view of the same spider:

Posted by Sergey Golubev on 28-11-2006 12:39
#3

Hi, Markop. By several of its features it seems to be so. The features which point it belongs to the family Gnaphosidae are as follows:
-its posterior median eyes are oval or irregular in shape;
-its anterior spinners are longer than other ones and separated from each other by the diameter of one of them;
-its anterior eyes are located very closely to the front edge of the carapace, so the clypeus is very narrow (according to the second picture).
Sergey Golubev

Posted by markop on 29-11-2006 11:55
#4

Thanks Sergey! The shape of the posterior median eyes is not very well distiguishable in my photos, I think, but it was the spinners that led me, too, to say this must be Gnaphosidae. I think most Gnaphosids have long, separated, cylindrical anterior spinners like that, an exception being the ant-mimicing genus Micaria, right?

Can anyone determine the genus of this Gnaphosid? I searched all over the web, but I couldn't find any picture (or even a reference) of a greenish abdomen like this...

Posted by crex on 29-11-2006 12:04
#5

Perhaps you can find something in the literature, like in Ground spiders (Gnaphosidae; Araneae) from Crete and adjacent areas of Greece. Taxonomy and distribution ... or you can try contacting one of the authors - Maria CHATZAKI, Konrad THALER and Moysi MYLONAS. Thaler is dead, I think, I read somewhere.

Posted by jorgemotalmeida on 29-11-2006 12:26
#6

i left a mail to you markop. This is Gnaphosidae spider. Yes. ;)

Posted by markop on 30-11-2006 10:53
#7

Thanks crex for the tip. I was able to get my hands on Maria Chatzaki's thesis on Cretan Gnaphosidae from the University of Crete library, as well as contact her by email. She was very kind and responded very quickly! She's 90% sure that this is a Pterotricha lentiginosa, which happens to be the most abundant species of Gnaphosidae on Crete. Thank you Maria!