102 Bulletin of Zoological Nomenclature OPINION 1134 ZERYNTHIA OCHSENHEIMER, 1816 (INSECTA LEPIDOPTERA) CONSERVED UNDER THE PLENARY POWERS RULING -(1) Under the plenary powers, the generic name Pamalius Rafinesque, 1815, is hereby suppressed for the purposes of the Law of Priority but not for those of the Law of Homonymy. (2) The generic name Zerynthia Ochsenheimer, 1816 (gender: feminine), type species, through Thais Fabricius, 1807, non Roeding, 1798, Papilio hypsipyle Fabricius, 1776, is hereby placed on the Official List of Generic Names in Zoology with the Name Number 2086. (3) The specific name polyxena [Denis & Schiffermueller] , 1775, as published in the binomen Papilio polyxena, is hereby placed on the Official List of Specific Names in Zoology with the Name Number 2683. (4) The generic name Pamalius Rafinesque, 1815, as suppressed under the plenary powers in (1) above, is hereby placed on the Official Index of Rejected and Invalid Generic Names in Zoology with the Name Number 2 109. HISTORY OF THE CASE Z.N.(S.) 1884 An apphcation for the use of the plenary powers to suppress the generic name Pamalius Rafinesque, 1815, was first received from Mr N.D. Riley (British Museum (Natural History), London) and Dr L.G. Higgins (Focklesbrook Farm, Chobham, Woking, U.K.) on 20 March 1969. The case was affected by the confusion then surrounding Article 23b of the Code and was accordingly not proceeded with. In July 1974 Mr Riley provided the additional references required under the revised provisions of Articles 23a-b and 79b; the paper was sent to the printer on 27 August 1974 and published on 31 December 1974 in Bull. zool. Nom., vol. 31: 204-205. PubUc notice of the possible use of the plenary powers in the case was given in the same part of the Bulletin and was sent to the statutory serials as well as to nine entomological serials. An objec-tion by O Kudma and P.R. Ackery, with a reply by Riley and Higgins, was published in Bull. zool. Nom., vol. 33: 145. No other comment was received. Bull. zool. Nam., vol. 36, part 2, August 1979