Unknown but familiar-looking spider - Plectreurys

Moved

… R.J. Adams, 19 March, 2013 - 9:16pm

Plectreurys

This is definitely a male Plectreurys; one that clearly has had a difficult life. Except for its left leg IV, it looks like it's lost the tips of each of its legs although a terminal segment appears to be growing back at the end of left leg I. This gives it an especially short-legged appearance, but the large clasping spur on on tibia I and the thick, curved femur I are diagnostic for the genus. Unfortunately, I'm not familiar enough with Plectreurys to make a species-level identification.

… R.J. Adams, 19 March, 2013 - 9:16pm

Moved

Moved from Kibramoa. Moved back one level until we can agree on genus. Thanks.

… Lynette Elliott, 15 February, 2012 - 9:07am

Moved

Moved from Plectreurys.

Kibramoa ID'd by J. Ledford via photo.

… Debbi Brusco, 7 February, 2012 - 4:20pm

Kibramoa ?

I never would have guessed this genus. My guide says Kibramoa has Femur I straight and slender while Plectreurys has Femur I curved and robust. Also Plectreurys has the male clasping spur on tibia I while Kibramoa does not.

If my guide is correct I don't see how this can be Kibramoa.

… Lynette Elliott, 8 February, 2012 - 9:12am

Moved

Moved from Spiders. This is our best guess at this time.

… Lynette Elliott, 16 December, 2011 - 4:51pm

Moved

Moved from ID Request. We'll leave it here for a while and see if we can get anyone to agree with me.

… Lynette Elliott, 4 September, 2011 - 10:20am

possible Plectreurys

Ranges from Steve Lew's site suggest Plectreurys castanea or Plectreurys monterea. Gertsch, 1958 writes "The male of monterea is easily separated by the form of the embolus of the palpus. In addition, the more slender first leg lacks ventral spines on the tibia and metatarsus." I think the main thing here is that the legs of monterea are more slender than castanea. It's difficult to guess what that means when we don't have images of both to look at, but putting together range & robust legs I'd lean toward Plectreurys castanea for this spider.

… Lynette Elliott, 4 September, 2011 - 9:59am

Familiar spider

Looks like a Sac Spider - Trachelas tranquillus.

… Peggy Boike, 4 September, 2011 - 6:54am

not Trachelas tranquillus

I can tell from the spur off the front leg that this is something not as common. I'll have to do some reading... searching and then I'll give a guess. Right off the top of my head I'd guess it's something related to a spider I found in NC once. See

… Lynette Elliott, 4 September, 2011 - 8:58am

:/ hmmm

Try bugguide member RJ Adams. http://bugguide.net/user/view/27464
Judging by its appearance, this spider is a burrower. The spur is really distinctive. Excellent specimen.

… wolfpacksved, 4 September, 2011 - 9:04am

Ariadna fidicina?

I found a reference that shows a map and A. fidicina is listed where the spider above was found. There are some drawings, map & info found here.

~ Edit after reading the description... they hadn't found a male of the species when they wrote the paper. Only the female is described.

… Lynette Elliott, 4 September, 2011 - 9:35am

Plectreurys?

The other spiders to consider are the Plectreurys.. Compare with

I'm thinking the placement of the spur matches this image better than the Ariadna. There are at least 11 species of Plectreurys listed for CA on Steve Lew's site.

… Lynette Elliott, 4 September, 2011 - 9:45am

to L.S.--you are good.

sure looks close to me...RJ Adams where are you????

… wolfpacksved, 4 September, 2011 - 11:46am