About Leucophenga varia (Walker, 1849)
Leucophenga varia (Walker, 1849) is a species of fly that belongs to the family Drosophilidae. This species is found in North America. Unlike other members of Drosophilidae, Leucophenga varia feeds on mushrooms. This feeding behavior has affected the evolution of the Diptericin gene, which is part of the species' innate immune system.