The weired thing about a Black widow spider is that they have a red hourglass mark on their abdomen. The black widow spider bite is 15 times stronger than a rattle snake. People who get bitten by a black widow spider suffer no serious damage. The Black widow spider eats flies, mosquitoes, grasshoppers, beetles, and caterpillars. The animals most risk from the black widow are insects. But the weired thing about a Black Widow spider is that they have a red hourglass mark on their abdomen.