American Pelecinid Wasps are relatively common from Argentina through Canada, in woodlands, grasslands and gardens, from mid-summer to early fall. APWs are whip-thin, shiny, and black, with extra long antennae. A female may measure almost 2 ½ inches long, and her abdomen is five times the length of the rest of her body; males are only about an inch long. The diet of adult APWs is nectar, perhaps supplemented by some pollen and water. Their larvae follow the parasitoid path.