Latrodectus sp. (Mexico, male? looks like mactans)

[John Bokma]

Saw this one today, and I was guessing it to be a male black widow. It looks alot like http://www.biosurvey.ou.edu/okwild/misc/bwmale.html

On the other hand, I know very little about Latrodectus sp.

Location: close to the Veracruz/Puebla border, under a rock in a dry river bed.

(I have on my site more Latrodectus sp. pictures, different location, most likely different species, for example: http://johnbokma.com/mexit/2006/06/26/chavarillo-barranca-1.html female with egg sac).

 

[buthus]

Its a young female. Looks like L. hesperus except for the predominant red line. Probably a mactans or L. mexicanus. I'm not familiar enough with the abdomin markings of sub-adults other than hesperus.