Latrodectus Question

ReignofInvertebrates

Arachnoprince
Arachnosupporter
Joined
Dec 29, 2012
Messages
1,066
Can anyone tell me the ranges in the U.S. where hesperus and mactans overlap? Also, what's the easiest way to distinguish the two? I've never kept hesperus.
 

shining

Arachnodemon
Old Timer
Joined
Jul 15, 2011
Messages
755
The L. hesperus has a smaller bottom triangle of the hourglass when compared to the top triangle.

Range overlap, I don't know.
 

antinous

Pamphopharaoh
Active Member
Joined
Mar 28, 2013
Messages
1,531
Here are the ranges for both species:

L. mactans


L. hesperus
 
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