tiny spider - Episinus amoenus

There is an Episinus - (Therididae)

on the North American list. We came to Episinus amoenus as we tried to track this image down, based on the description of the body, without realizing that you had come to the same genus. The problem is that we can't find any images of it. Here's the data from kaston.transy

Genus Episinus Walckenaer, 1809 [2]
amoenus Banks, 1911 USA
AL, DC, FL, GA, MD, MS [Dorris, 1972], NC, OH [Bradley, unpub.], TN, VA

… john and jane balaban, 18 January, 2006 - 6:41pm

Thanks

for the info.

… Lynette Schimming, 18 January, 2006 - 10:52pm

The

other NA species is cognatus. Not sure how to tell the two apart.

… Jeff Hollenbeck, 30 September, 2006 - 7:25pm

here's another reference

Headstrom – Spiders of the United States

Episinus amoenus – Female about 1/6 inch, male about 1/10 inch. This spider is easily recognized by the form of its abdomen which is narrow and bilobed at the base, gradually widening toward the posterior end; a tubercle on each side of the abdomen at its widest part. Page 87

… john and jane balaban, 19 January, 2006 - 6:06pm

Written References...

I've always had a hard time IDing from words....that being said if it looks to be the only species in North America I'm inclined to believe that's what it is. Compared to this photo of Episinus angulatus it matches very well for belonging to that genus.

… Lynette Schimming, 19 January, 2006 - 6:29pm

Nice!

Nice! Saw a drawing today in Comstock that looks exactly like your image.

… john and jane balaban, 19 January, 2006 - 7:48pm

Uloborus?

Reminds me of Uloborus (family Uloboridae), but not positive.

… Eric R. Eaton, 10 January, 2006 - 10:49am

Thanks,

I considered that, and haven't fully ruled it out. But it does not have the "feathered legs" and the abdomen shape seems wrong. Of course, I only am comparing to the Uloborus in the guide, so there may be others that match.

… Lynette Schimming, 10 January, 2006 - 11:12am

Re: Uloborus.

Not all the species have the "feathered" legs, and I'm pretty sure the immatures lack that feature as well. The overall shape, and posture, fits, but then there are probably lots of other possibilities:-)

… Eric R. Eaton, 10 January, 2006 - 12:13pm

Shape

my thinking on the shape...hard to explain for me....is that the "hump" on Uloborus is more towards the head while in this photo the hump is much more toward the rear. Does that make sense?

… Lynette Schimming, 10 January, 2006 - 12:21pm