#genus_Latrodectus__Latrodectus  venomous spiders
  supertype:  arthropod_genus  a genus of arthropods
  member of:  family_Theridiidae
  member:  black_widow__blackwidow__Latrodectus_mactans  venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen

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