A review of two nearctic shore-fly species in the genus Psilopa fallén that were included in the genus Cressonomyia Arnaud (Diptera: Ephydridae)

Wayne N Mathis
Tadeusz Zatwarnicki

Published in Proceedings of the Entomological Society of Washington, in 2004, in volume 106, pages 639-648

Date published:2004

BHL: 30135206
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