L. mactans? - ventral - Latrodectus hesperus
McKinney Roughs Nature Park, Bastrop County, Texas, USA
September 16, 2010
Can we say for sure that this is Latrodectus mactans? I'm going on the hourglass being more anvil-like than hour-glass-like. In addition, the Field Guide to the Spiders and Scoripions of Texas reports that the adult female L. mactans sometimes has multiple spots dorsally. She has produced egg sacs for me, so she's definitely an adult.
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