Conowingo Dam Darlington, Harford Cnty, MDHas the front end of a praying mantis and captures small insects. As larvae mantispids prey on spider egg sacs. This one prefers Wolf spiders. The larvae actively seek out spiders and ride on them. If the spider is a male, the larvae will switch to the female during mating. Larvae then gets into the egg sac and feeds on the spider eggs.
