Thread subject: Diptera.info :: Spider / Araneus ........

Posted by Robert Heemskerk on 10-11-2005 22:20
#1

Hello Spiderreader,

15th of October my brother saw this spider on Vlieland (island in the north of Holland).
I find it difficult to say what kind of spider this is..

- It looks like an Araneus alsine, but can it have a cross on its back?
- Is it a strange diadematus (shape and color isn't normal for it I think)
- It could even be a strange quadratus (with cross on it's back?)

Is there a difference between these species when you look to it's Carapace with transverse groove posteriorly?

Regards, Robert Heemskerk
www.diptera.info/forim/6-0964-1.jpg

Posted by Andre on 10-11-2005 23:43
#2

Maybe next website can help you?
http://www.xs4all.nl/~ednieuw/Spiders/spidhomeNL.htm

Posted by Robert Heemskerk on 10-11-2005 23:49
#3

Thank you Andr?, I have already visited this site.
And bookmarked it.
It could not solve my questions...:(

Posted by Andre on 10-11-2005 23:52
#4

Try to contact the owner of the site.
Or you can send the photo to my emailaddress and I will forward it to a colleage of mine, interested in spiders... :)

Posted by jorgemotalmeida on 20-07-2006 10:56
#5

Robert Heemskerk wrote:
Hello Spiderreader,

15th of October my brother saw this spider on Vlieland (island in the north of Holland).
I find it difficult to say what kind of spider this is..

- It looks like an Araneus alsine, but can it have a cross on its back?
- Is it a strange diadematus (shape and color isn't normal for it I think)
- It could even be a strange quadratus (with cross on it's back?)

Is there a difference between these species when you look to it's Carapace with transverse groove posteriorly?

Regards, Robert Heemskerk
www.diptera.info/forim/6-0964-1.jpg


It seems like an Araneus diadematus. Araneus alsine is much more orange, and much more spotted. I am for Araneus diadematus.

Posted by Juergen Peters on 21-07-2006 00:13
#6

Hello!

It seems like an Araneus diadematus. Araneus alsine is much more orange, and much more spotted. I am for Araneus diadematus.


It is a female Araneus diadematus for sure. A. alsine never has those "cross" markings, giving A. diadematus its german name Gartenkreuzspinne (of course, A. marmoreus can have such a cross, but it is otherwise marked differently).
The red color often appears here in Germany, I have seen individuals from light yellow to nearly black. Some examples on my website (sorry, text only in German): http://insektenfo...ematus.htm.
The more rounded opisthosoma (abdomen) is mostly to having had a good meal ;-) or carrying many eggs.

Here an A. alsine (rather dull spotted female):

insektenfotos.de/Araneus%20alsine%20(Sumpfkreuzspinne)_001.jpg

Edited by Juergen Peters on 21-07-2006 00:17

Posted by Robert Heemskerk on 04-08-2006 13:10
#7

Thanks a lot! for your reaction.
I'll sent it to my brother ;)

robert,