Black Widow Spider Description Shiny black with a red hourglass shape on abdomen. There are also dull brown & red widows with orange or red circles on abdomen. Bite Site No mark. Pain like a needle stick. Possible Symptoms Muscle twitching/spasms, cramps, vomiting, sweating, headache, severe trunk pain. Recommended Treatment Protocol Cleanse with soap & water. Cool compresses. Emergency department for observation and treatment. POISON TOPICS × Poisoning PreventionSubstances of AbuseHerbal ProductsVenomous Critters Ants & Fire Ants Bees, Wasps & Hornets Florida Scorpions Coral Snake Pit Vipers Black Widow Spider Brown Recluse Spider Stinging Caterpillars Aquatic Vertebrates Aquatic InvertebratesPoisonous PlantsCarbon MonoxideFood SafetyOlder Adults