Fishflies
Guides
Nigronia
Dark Fishflies
Nigronia is a genus of megalopteran insects commonly known as dark fishflies. The genus contains two species, Nigronia serricornis and Nigronia fasciata, distinguished primarily by wing pattern. Adults are medium-sized insects measuring 20-30 millimeters in length. The genus belongs to the family Corydalidae, which includes dobsonflies and fishflies.