Latrodectus geometricus? - Latrodectus hesperus

Moved

Moved from Widow Spiders.

… Ken Schneider, 23 July, 2010 - 1:53pm

Moved

Moved from Brown Widow.

… Ken Schneider, 15 July, 2010 - 12:37pm

Moved

Moved from Widow Spiders.

… John R. Maxwell, 15 July, 2010 - 12:33pm

Latrodectus geometricus. same

Latrodectus geometricus. same for all in this set.

… widowman10, 14 July, 2010 - 10:31pm

Moved

Moved from Cobweb Spiders.

… Ken Schneider, 30 August, 2009 - 11:17pm

Might be

I can't tell from the epigyne picture whether it's an adult, but maybe it could be L. geometricus. They have an orange-colored hourglass, usually complete as far as I know. This one's is a little lighter than the orange I've seen (I have a live one in a jar on my desk), but I'd bet on that species rather than L. hesperus if this is a mature spider. Have you got it in a jar? Might be worth keeping and watching for a while, in case it still has another molt left. Nice find!

… John Sloan, 30 August, 2009 - 11:28am

Thanks, John -

It's in alcohol... Will move to genus page for now.

… Ken Schneider, 30 August, 2009 - 11:17pm

Immature L. hesperus?

One of my local spider experts tells me that L. geometricus hasn't made it this far north in CA, so likely an immature L. hesperus...

… Ken Schneider, 1 September, 2009 - 1:10pm