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BulletinofZoologicalNomenclature48(2)June1991 175 OPINION 1642 ChlorophanusSahlberg, 1823(Insecta, Coleoptera): conserved Ruling (1) Under the plenary powers the generic name Chlorima Germar, 1817 is hereby suppressedforthepurposesofthePrincipleofPrioritybutnotforthoseofthePrinciple ofHomonymy. (2) The name Chlorophanus Sahlberg, 1823 (gender: masculine), type species by monotypy ChlorophanusfallaxSahlberg, 1823 ishereby placed on theOfficial List of GenericNamesinZoology. (3) ThenameexcisusFabricius, 1801,aspublishedinthebinomen Curculioexcisus (senior subjective synonym of the specific name of Chlorophanusfallax Schonherr, 1823,thetypespeciesof^ChlorophanusSahlberg, 1823),isherebyplacedontheOfficial ListofSpecificNamesinZoology. (4) Thename ChlorimaGermar, 1817, as suppressedin(1)above, isherebyplaced ontheOfficialIndexofRejectedandInvalidGenericNamesinZoology. HistoryofCase2218 An application for the conservation ofChlorophanus Sahlberg, 1823 was received from DrHans Silfverberg{UniversitetsZoologiska Museum, Helsingfors, Finland) on 10March 1977butforvariousreasonswasnotpublisheduntilBZN44: 110-111 (June 1987).Noticeofthecasewassenttoappropriatejournals. InJune 1987 DrM.A. Alonso-Zarazaga (Seccionde Entomologia, Museo Nacional de Ciencias Naturales, Madrid, Spain) by coincidence mentioned in a letter to the CommissionSecretarythatin 1984hehad 'resurrected' theseniorsynonym Chlorima Germar, 1817 and designated Curculio viridis Linnaeus, 1758 as the type species (Alonso-Zarazaga, 1984,p.284).TheCommissionSecretariatwasnotabletogetviews onthebestcourseofactionfromeitherDrSilfverbergorDrAlonso-Zarazagauntilin 1990DrSilfverbergagreedthattheapplicationshouldbesubmittedtotheCommission forvoting. The name Chlorophanus Sahlberg, 1823 has had wide usage, with Curculio excisus Fabricius, 1801 and C. viridisLinnaeus, 1758bothplacedinthegenus,whichincludes some50speciesoccurringthroughoutthePalaearcticregion.Giinther&Zumpt(1933; Coleopterorumcatalogus,part 131), astandardworkforthecurculionidae, usedthe nameChlorophanusandmentioned Chlorimaonlyasasynonym. Arecentpublication(Tempere&Pericart, 1989,pp.85-86,482)maintainedusageof Chlorophanusandnoted:'Alonso(1984: 284)aproposedesubstituerlenomChlorima Germar, 1817aunom ChlorophanusC.R. Sahlberg, 1823. Maisen 1987unerequetea ete formulee aupres de la Commission Internationale de Nomenclature Zoologique en faveur de la conservation de Chlorophanus. En consequence il parait prudent d'attendreavantd'effectuercechangementdenomgenerique'. The application was supported by R.T. Thompson (TheNaturalHistoryMuseum, London, U.K.) whoconsidered that replacing the well-known name Chlorophanus by Chlorima,unusedexceptbyAlonso-Zarazaga(1984),wouldcauselossofstabilityand confusionin thenomenclatureofthegenus. 1 176 BulletinofZoologicalNomenclature48(2)June199 Additionalreferences Alonso-Zarazaga,M.A. 1984.Validezdelgenero ChlorimaGermar, 1817(Col.Curculionidae, Tanymecini).BoletindelaAsociacionEspanoladeEntonwlogia,8:284. Giinther,K.&Zumpt,F.1933.Part131(Curculionidae:Subfam.Tanymecinae)inSchlenking,S. (Ed.),Coleopterorumcatalogus. 131 pp.Junk,Berlin. Tempere,G.&Pericart,J. 1989.ColeopteresCurculionidae,part4(complements,corrections, repertoire).FaunedeFrance,74: 1-534. DecisionoftheCommission On 1 December 1990 the members ofthe Commission were invited to vote on the proposalspublishedinBZN44: 110.Atthecloseofthevotingperiodon 1 March 1991 thevoteswereasfoll—ows: Affirmative votes 24: Bayer, Bock, Cocks, Cogger, Corliss, Dupuis, Halvorsen, Heppell,Kabata,Kraus,Lehtinen,Mahnert,MartinsdeSouza,Minelli,Mroczkowski, Nielsen,Nye, Ride—, Savage, Schuster, Starobogatov,Trjapitzin,Ueno,Willink Negativevotes 4: Hahn,Holthuis, MacphersonandThompson. HahnsaidthatitwouldbebetternottosuppressChlorima,buttogiveprecedenceto Chlorophanuswhenbothgeneraaretreatedassynonyms. Originalreferences ThefollowingaretheoriginalreferencestothenamesplacedonOfficialListsandanOfficial IndexbytherulinggiveninthepresentOpinion: ChlorimaGermar, 1817,MagazinderEntomologie,2:341. Chlorophanus Sahlberg, 1823, Periculi entomographici, species insectorum nondum descriptas proposituri.fasciculus,p.4. excisus,Curculio,Fabricius, 1801,SystemaEleutheratorum,vol.2,p.531.