Epiphragma fasciapenne, one of the oceollated crane flies (Family Limoniidae), on an iris. June is the mating season for this species of crane fly and males will form large swarms close to the ground to attract females. Eggs are laid in moist well-rotted wood where the larvae will feed.
Alexander, C.P. (1919). The Crane-flies of New York. Part I. Distribution and taxonomy of the adult flies. Cornell University Agricultural Station Memoir, 25. Pages 766–933.