Latrodectus geometricus? - Latrodectus hesperus

Moved

Moved from Widow Spiders. I sent this specimen to Rick Vetter, who identified the spider as an immature L. hesperus.

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

yes, good idea for now. could

yes, good idea for now. could always be hesp.

hrglass does not have the typical geometricus shape, where the bottom half is bigger, etc etc.

best to wait for confirmation.

edit: and actually taking a closer look- the glass perfectly matches a juvenile hesperus.

again, best to wait for confirmation.

edit 2: i'll check my info when i get home for patterns of striping and everything. sorry for so many edits :) this one has got me double guessing.

… widowman10, 15 July, 2010 - 3:52pm

Moved

Moved from Brown Widow. Whoa - please see my comment below Max - may be correct, but this would be a range extension for a very noticeable spider. Again, I suspect "widowman" knows what he's talking about, but he is essentially anonymous at this point. Thanks!

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

Ah,

I didn't see that. The Balabans knew him, and asked him to ID our widows yesterday.

… John R. Maxwell, 15 July, 2010 - 12:42pm

I emailed two -

local experts with these pics. (Yes, I'm also keeping them anonymous -some spider folks don't like to be quoted without the specimen in hand, and I didn't ask them in advance whether it was OK). Both feel that this is likely a juvenile L. hesperus and not geometricus. When I get time, I will try to send the specimen to one of them for confirmation or correction. I'll leave these pics here for now.

… Ken Schneider, 15 July, 2010 - 3:20pm

Moved

Moved from Widow Spiders.

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

this spider, as well as the o

this spider, as well as the others in the set, are undoubtedly-
L. geometricus.
dots near the spinerettes are a dead giveaway.

… widowman10, 15 July, 2010 - 10:16am

Thanks for your comments -

widowman! You're probably right, although I'm not really familiar with this genus. It would be great if you could fill out some of your profile/bio. so we know what your areas of interest are (other than widows, of course).

I'll try emailing a local spider expert to confirm your ID - as I mention on the other image, I've been told that this species hadn't extended this far north, but it's not that big of a range extension...

… Ken Schneider, 15 July, 2010 - 10:30am

Moved

Moved from Cobweb Spiders.

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