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A generic revision of the aquatic moths of North America: (Lepidoptera: Pyralidae, Nymphulinae).
By W. H. Lange, Jr.
Wasmann J. Biol., 14:59-144, 1956
Cite: 1451991 with citation markup [cite:1451991]

PDF at the Gleeson Library Digital Collections, University of San Fransisco here.