spider - Neospintharus trigonum

Moved

Moved from Argyrodes/Faiditus/Neospintharus/Rhomphaea. ID based on comments by Meghan.. "You all have been doing some awesome work here!
I've just started my thesis work with the subfamily Argyrodes, and specifically N. trigonum.
I don't know exactly which species this spider is, but I do know it doesn't fit with my gestalt idea of what trigonum looks like. While the comparison image you have could be one based on body type, the picture doesn't really do their most common color variation justice. This image is actually a better one, and based of location I can be certain of its linage to ~90% accuracy. http://bugguide.net/node/view/471124

Hope this helps.
I'll be doing some more field work this summer and hopefully coming up with some voucher species, so I'll check back in then.

Meghan, 29 March, 2011 - 8:16pm

… Lynette Elliott, 30 March, 2011 - 10:51am

I don't understand this one

Lynette, I'm thinking that either you misread Meghan's comment, or you mistyped it. The comment says that she thinks this is NOT N. trigonum. Scanning through Exline and Levy 1962, I have to agree. In fact, I can't find a good match for this abdomen anywhere in the document. The abdomen very roughly matches a few of the illustrations, but those matches are in varying genera. It's not even clear to me that this is Neospintharus, because I can't see a bifurcation at the abdomen's apex -- what I see seems like a single point.

So I'm thinking that Theridiidae is the best we can do for this specimen, unless we have a group for the formerly all-Argyrodes.

… Joe Lapp, 28 June, 2011 - 7:50am

Hi Joe

I think I have it right. You can read the comment in context here:

I think she's saying that image 471124 is trigonum. The spider she thinks is not trigonum is 462497.

It was confusing that I didn't provide the original image the comment was made on. Let me know what you think. Thanks!

… Lynette Elliott, 28 June, 2011 - 9:23am

Ok, I'll have to trust you. I

Ok, I'll have to trust you. I can't tell which spiders she referring to. Maybe trigonum looks like this when immature?

… Joe Lapp, 28 June, 2011 - 9:52am

Moved

Moved from Spiders.

… Ilona L., 9 November, 2010 - 6:48pm

We imagine so, but folks have been studying these lately,

so you might luck out and get an actual ID! Nice!

… john and jane balaban, 9 November, 2010 - 5:58pm