Biosystematics of Dannella and Related Subgenera of Ephemerella (Ephemeroptera: Ephemerellidae)

  title={Biosystematics of Dannella and Related Subgenera of Ephemerella (Ephemeroptera: Ephemerellidae)},
  author={W. P. Mccafferty},
  journal={Annals of The Entomological Society of America},
  • W. P. Mccafferty
  • Published 1977
  • Biology
  • Annals of The Entomological Society of America
The subgenera Attenella, Eurylophella, Dannella , and Timpanoga of the genus Ephemerella form a monophyletic group of subgenera whose interrelationships are retraced phylogenetically. Dannella and the more highly derived Timpanoga form sister groups divergent from the highly derived Eurylophella , while Attenella is more ancestral in origin. Ephemerella (Dannella) provonshai sp. n. shares an immediate common ancestor with E. simplex . The adult stage of E. lita is described for the first time… Expand
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