are way off.
This is also an adult female brown widow, L. geometricus.

The proportions of the cephalothorax to abdomen don't look right for an adult female. That's why I suggested an immature, and immatures are notoriously variable in color. Other than color, what are you using to identify this spider to species?

starters, the pedipalps and epigynum say adult female.

Second, proportions have absolutely nothing to do with sex. While adult males typically have small abdomens, recently molted or starved females/juveniles also have them.

Immatures/male hesperus look nothing like this, with the exception of possible tan coloration. The pattern is also different.

I suggest you take a look at the guide image pages before attempting ID's in the future. For example, comparing existing hesperus/geometricus images would have made the differences obvious.

Jeff is clearly correct. I have raised brown widows from early instars and recognize the photo to be that of a female. The banded legs also help ID it as a brown widow.