spider - Robertus riparius

Moved

Moved from Robertus.

… tom murray, 18 July, 2010 - 5:07pm

Moved

Moved from Spiders.
I had a comment on my pbase site suggesting this might be Robertus riparius. Given the size, I think that's a good possibility.

… tom murray, 24 March, 2010 - 7:18pm

Yes, Robertus, and R. ripariu

Yes, Robertus, and R. riparius seems like a good possibility. Will let you know when the package arrives.

-Kevin

… Kevin Pfeiffer, 25 March, 2010 - 12:39am

Yes, Robertus riparius! -K

Yes, Robertus riparius!

-K

Specimen: kmp-6265

… Kevin Pfeiffer, 18 July, 2010 - 4:51pm

More pictures?

Have you got a crisp ventral closeup of the spinnerets? That would help.

… John Sloan, 24 March, 2010 - 7:38pm

No ventral shots

This is in the last batch I sent to Kevin, so it should eventually get solved.

… tom murray, 24 March, 2010 - 7:50pm

Looks interesting -- what is it? ;-)

Interesting specimens, as always, Tom! You would think that with the pedipalp having such distinctive proportions and that big coat hook that it would be possible to make a determination from your photo. Paging through Paquin & Dupérré, however, I don't see anything right off the bat. Maybe, maybe Souidas tibialis, but I don't think so, at least not yet. (The proportions are also rather similar to Diplostyla concolor, but I don't see the corresponding features.)

The problem is that I've never seen many/most of these species before and the drawings in P & D are usually ventral views; there are some lateral views, but they are not very common. Once I've seen a specimen, as you've seen, it's much easier to make the mental interpolation from one view to another, but before that, the fuzzy knowledge is just too fuzzy.

I've been busy the last few days with work and making improvements to my records database, but will get back to your remaining specimens this week!

-K

… Kevin Pfeiffer, 8 March, 2010 - 4:11am

Kevin,

I have no idea what this one is either. I just know it's one I haven't seen before. Are you ready for another shipment? This time there's a good number of specimens waiting.

… tom murray, 8 March, 2010 - 8:25am

Gladly. That's a good incentive to get caught up before they arrive!

-K

… Kevin Pfeiffer, 8 March, 2010 - 8:33am