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Review of the Nearctic species of the subgenus Anacrostichus Bezzi, 1909 (Diptera: Empididae)
By I. V. Shamshev
Russian Entomological Journal, 2023
Cite: 2403110 with citation markup [cite:2403110]
Abstract: The Nearctic species of dance flies of the subgenus Anacrostichus Bezzi, 1909 of the genus Empis Linnaeus, 1758 are reviewed. A total of ten species of the group are recognised from this region including a new species: E. (A.) spaetensis sp.n. (Canada (British Columbia)). In addition, a new synonym is proposed: Empis laevigata Loew, 1864 = Empis lucida Zetterstedt, 1838. All species are redescribed and illustrated. A key to the North American species of Anacrostichus is provided.

https://kmkjournals.com/journals/REJ/REJ_Index_Volumes/REJ_32/REJ_32_3_330_355