A New Species and New Synonym in Heptagenia Walsh (Ephemeroptera: Heptageniidae: Heptageniinae) Based on Molecular and Morphological Evidence.

@inproceedings{Webb2007ANS,
  title={A New Species and New Synonym in Heptagenia Walsh (Ephemeroptera: Heptageniidae: Heptageniinae) Based on Molecular and Morphological Evidence.},
  author={Jeffrey M. Webb and Lianjun Sun and W. P. McCafferty and Virginia R. Ferris},
  booktitle={Journal of insect science},
  year={2007}
}
A new mayfly species, Heptagenia whitingi Webb & McCafferty n.sp. is described from larvae, a male subimago, a female adult, and eggs collected from large rivers in the west-central portion of North America. Larvae are differentiated from other North American Heptagenia Walsh by a pair of large, rectangular pale markings on abdominal tergum 4, and the combination of having the posterior margin of the abdominal terga with bluntly pointed spines less than half the length of the fine setae, small… CONTINUE READING