A New Heptagenia (Ephemeroptera: Heptageniidae) from the Susquehanna and Delaware Rivers from Eastern North America

Author: EVANS JANET L.   BOTTS WILLIAM F.   FLOWERS R. W.  

Publisher: Entomological Society of America

ISSN: 1938-2901

Source: Annals of the Entomological Society of America, Vol.78, Iss.1, 1985-01, pp. : 5-7

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Abstract