Revising Spider Egg-predating Fly Records (Diptera: Sarcophagidae): New Insights on Prey, Taxonomy, and Distribution of () Hall in Southern South America.

Flesh flies (Diptera: Sarcophagidae) exhibit a wide range of feeding habits including necrophagy, coprophagy, kleptoparasitism, parasitism, and predation. Among them are species of Meigen belonging to the subgenera Lopes and Enderlein that are specialized predators of spider eggs. These flies hover around spider webs and lay their larvae on the spider egg sac.