1 14 Bull. zool. Norn., vol 38, pt 2, April 1981 OPINION 1 1 78 MEGASTERNUM MULSANT, 1844. AND CRYPTOPLEURUM MULSANT, 1844 (INSECTA, COLEOPTERA) : TYPE SPECIES DETERMINED RULING.— (1) Under the plenary powers, all designations of type species hitherto made for the nominal genera Megastemum Mulsant, 1844 and Cryptopleurum Mulsant, 1844 are set aside, and (a) Dermestes obscurus Marsham, 1802 is hereby designated as type species of Megastemum Mulsant, 1844; (h) Sphaeridium minutum Fabricius, 1775 is hereby designated as type species of Cryptopleurum Mulsant, 1844. (2) The following names are hereby placed on the Official List of Generic Names in Zoology with the Name Numbers specified: (a) Megastemum Mulsant, 1844 (gender, neuter), type species, by designation under the plenary powers in (l)(a) above, Dermestes obscurus Marsham, 1802 (Name Number 2117); ih) Cryptopleurum Mulsant, 1844 (gender, neuter), type species, by designation under the plenary powers in (l)(b) above, Sphaeridium minutum Fabricius, 1775 (Name Number 2118). (3) The following names are hereby placed on the Official List of Specific Names in Zoology with the Name Numbers specified: (a) obscurus Marsham, 1802, as published in the binomen Dermestes obscurus (specific name of type species of Megastemum Mulsant, 1844) (Name Number 2739); (b) minutum Fabricius, 1775, as published in the binomen Sphaeridium minutum (specific name of type species of Cryptopleurum Mulsant, 1844 (Name Number 2740). HISTORY OF THE CASE Z.N.(S.)2075 An application for the use of the plenary powers to designate type species for the genera Megastemum Mulsant, 1844 and Cryptopleurum Mulsant, 1844 was first received from Dr A. Smetana {Biosystematics Research Institute, Ottawa, Canada) on 20 June 1974. It was sent to the printer on 27 August 1974 and published on 31 December 1974 in Bull. zool. Nom. vol. 31,
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