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• Aquatic Macros

1.        Wings with large white areas more or less continuous, especially across the middle; anal area of            hindwing white; male antennae modified mectinate; female antennae serrate. . . . . . . . . . . . . . .            . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nigronia fasciatus (Walker)

           Wings with white spots isolated often associated with crossveins; anal area of hindwing brown;            male an dfemale antennae serrate. . . . . . . . . . . . . . . . . . . . . . . . . Nigronia serricornis (Say)