https://www.inaturalist.org/observations/5909686

"The venom that velvet ants inject through their stinger has an unknown composition. According to one researcher, the painfulness of the sting of Dasymutilla klugii outscored 58 other species of stinging insects tested; the only species this researcher rated as having a more painful sting were the Paraponera clavata (bullet ant), Synoeca septentrionalis (warrior wasp), and Pepsis spp. and Hemipepsis spp. (tarantula hawks)."