BulletinofZoologicalNomenclature50(3)September1993 245 OPINION 1741 Gerrispaludum Fabricius, 1794(currently Aquariuspaludum; Insecta, Heteroptera): specific name conserved Ruling (1) UndertheplenarypowersthenamealatusRetzius, 1783,aspublishedin the trinomen Cimex najas var. alatus. is hereby suppressed for the purposes of the PrincipleofPrioritybutnotforthoseofthePrincipleofHomonymy. (2) The name paludum Fabricius, 1794, as published in the binomen Gerris paludum and asdefined by the lectotypedesignated byAndersen (1990), is hereby placed on theOfficialListofSpecificNamesinZoology. (3) ThenamealatusRetzius, 1783.aspublishedinthetrinomen Cimexnajasvar. alatus and as suppressed in (1) above, is hereby placed on the Official Index of RejectedandInvalidSpecificNamesinZoology. HistoryofCase2794 An application for the conservation of the specific name of Gerris paludum Fabricius, 1794 was received from Dr N. MoUer Andersen {Zoologisk Museum. University of Copenhagen. Copenhagen. Denmark) on 15 October 1990. After correspondencethecasewaspublished in BZN49: 118-119(June 1992). Noticeof thecasewassenttoappropriatejournals. DecisionoftheCommission On 1 March 1993 the members ofthe Commission were invited to vote on the proposalspublishedinBZN49: 118-119.Atthecloseofthevotingperiodon1June 1993thevoteswere—asfollows: Affirmativevotes 24: Bayer, Bock, Bouchet, Cocks, Cogger, Corliss, Dupuis, Hahn, Halvorsen, Heppell, Holthuis, Kraus, Macpherson, Mahnert, Martins de Souza,Minelli,Nie—lsen,Nye,Savage,Schuster,Stys,Thompson,Trjapitzin,Willink Negativevotes 1: Lehtinen. Novoteswerereceivedfrom Kabata,StarobogatovandUeno. Ridewasonleaveofabsence. Lehtinenconsideredthatpriorityshouldapply;thetypematerialofCimexalatus Retzius, 1783probablyexists(para. 3oftheapplication),andthesynonymyofthe name with Gerrispaludum Fabricius, 1794 had been interpreted by a well known specialist (O.M. Reuter). Thompson commented that most entomologists had ignoredthenamespublishedinRetzius(1783)becausetheybelievedtheworknotto beconsistentlybinominal. Originalreferences Thefollowingaretheoriginal referencestothenamesplacedon anOfficial Listandan OfficialIndexbytherulinggiveninthepresentOpinion: alatus,Cimexnajasvar.,Retzius, 1783, CaroliDeGeergeneraetspeciesinsectorum,p.89. paludum, Gerris,Fabricius, 1794,Entomologiasystematicaemendataetaucta,vol.4,p. 188. The following is the reference for the designation of the lectotype of Gerrispaludum Fabricius, 1794: Andersen,N.M. 1990.Sleenslrupia.16:59.