114 Bulletin of Zoological Nomenclature OPINION 652 DASIOPS RONDANI, 1856 (INSECTA, DIPTERA) ; DESIGNATION OF A TYPE-SPECIES UNDER THE PLENARY POWERS RULING. — (1) Under the plenary powers all designations of tjrpe-species for the nominal genus Dasiops Rondani, 1856, made prior to the present Ruling are hereby set aside, and the nominal species Lonchaea latifrons Meigen, 1826, is hereby designated to be the type-species of that genus. (2) The following generic names are hereby placed on the Official List of Generic Names in Zoology with the Name Numbers specified : (a) Dasiops Rondani, 1856 (gender : masculine), type-species, by designa-tion under the plenary powers, Lonchaea latifrons Meigen, 1826 (Name No. 1528) ; (b) Chaetolonchaea Czerny, 1934 (gender : feminine), type-species, by original designation, Lonchaea dasyops Meigen, 1826 (Name No. 1529) ; (c) Lonchaea Fallen, 1820 (gender : feminine), type-species, by designation by Westwood, 1840, Musca chorea Fabricius, 1781 (Name No. 1530). (3) The following specific names are hereby placed on the Official List of Specific Names in Zoology with the Name Numbers specified : (a) latifrons Meigen, 1826, as published in the binomen Lonchaea latifrons (type-species of Dasiops Rondani, 1856) (Name No. 1888) ; (b) dasyops Meigen, 1826, as published in the binomen Lonchaea dasyops (type-species of Chaetolonchaea Czerny, 1934) (Name No. 1889) ; (c) chorea Fabricius, 1781, as pubhshed in the binomen Musca chorea (tjrpe-species of Lonchaea Fallen, 1820) (Name No. 1890). (4) The family-group name lonchaeidae Loew, 1862 (tjrpe-genus Lonchaea Fallen, 1820) is hereby placed on the Official List of Family-Group Names in Zoology with the Name No. 343. (5) The following generic names are hereby placed on the Official Index of Rejected and Invalid Generic Names in Zoology with the Name Numbers specified : (a) Dasiopa Coquillet, 1910 (an incorrect spelling for Dasiops Rondani, 1856) (Name No. 1625) ; (b) Dasyops Scudder, 1882 (an incorrect spelling for Dasiops Rondani, 1856) (Name No. 1626) ; (c) Lonchea Rondani, 1856 (an incorrect spelHng for Lonchaea Fallen, 1820) (Name No. 1627). (6) The specific name dasiops Rondani, 1856, as published in the binomen Lonchea [sic] dasiops (an incorrect spelling for dasyops, Lonchaea, Meigen, 1826) is hereby placed on the Official Index of Rejected and Invalid Specific Names in Zoology with the Name No. 744. HISTORY OF THE CASE (Z.N.(S.) 1240) The present case was first submitted to the office of the Commission by Dr. Giinter Morge in July 1957. After additional information had been obtained Bull. zool. Nomencl., Vol. 20, Part 2. April, 1963.
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