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Definition of Latrodectus mactans
1. Noun. Venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen. 
Exact synonyms: Black Widow
Generic synonyms: Spider
Group relationships: Genus Latrodectus, Latrodectus
Generic synonyms: Spider
Group relationships: Genus Latrodectus, Latrodectus



