The purpose of this application, under Articles 23.9.5, 23.10, 57.2.2 and 81 of the Code, is to conserve two specific gastropod names Bulimus lineatus Bruguière, 1789 (Pulmonata: urocoptidae, currently Macroceramus lineatus, from Haiti) and Bulimus lineatus Draparnaud, 1801 (currently Acicula lineata, Caenogastropoda: aciculidae, from central Europe) by ruling under the plenary power to disregard their primary homonymy.

The purpose of this application, under Articles 23.9.5 and 23.10 of the Code, is to conserve the specific name of Arion (Carinarion) fasciatus (Nilsson, 1823) (arionidae), originally published in the combination Limax fasciatus as a primary homonym of Limax fasciatus Razoumowsky, 1789 (limacidae). The two names have not been considered congeneric since the 19th century. We propose to conserve the name Limax fasciatus Nilsson, 1823, by ruling that the name is not invalid by reason of being a junior primary homonym.

The purpose of this application, under Article 23.9.3 and Recommendation 23A of the Code, is to conserve the genus name Stirpulina Stoliczka, 1870 for a group of watering pot shells. The genus name Stirpulina is in widespread and current use. This name is threatened by the little-used senior subjective synonym Tubolana Bivona Bernardi, 1832. It is proposed that the name Stirpulina be conserved by the suppression of Tubolana.

The purpose of this application, under Articles 55.3.1 and 29 of the Code, is to remove homonymy between the family-group name metinae Simon, 1894 currently used in Araneae (tetragnathidae) and the crustacean family-group name metidae Boeck, 1872. It is proposed that the spelling of the spider name (based on the generic name Meta C.L. Koch, 1835) be emended to give metainae, while leaving the crustacean name (based on the generic name Metis) unaltered.

The purpose of this application, under Articles 23.9.3, 81.2.1 and 81.2.3 of the Code, is to conserve the name Curculio scirpi Fabricius, 1792, a common Palaearctic weevil species currently belonging to the genus Notaris (curculionoidea, erirhinidae) by giving it precedence over the little-used older name C. rhamni Herbst, 1784 whenever these names are considered to be synonyms, and by suppressing the little-used senior homonym C. scirpi Rossi, 1790.

The purpose of this application, under Articles 78.1, 78.2.3 and 81 of the Code, is to conserve the long and continuing usage of the specific name Crotalinus catenatus Rafinesque, 1818 (currently Sistrurus catenatus) for a species of pygmy rattlesnake by designation of a neotype. In addition, in order to will conserve the nearly equally long and continuous usage of the name Crotalus tergeminus Say in James, 1822 (currently Sistrurus tergeminus or Sistrurus catenatus tergeminus) for another pygmy rattlesnake, the Commission is asked to designate a neotype for this nominal species also. Newly found evidence indicates that the name Crotalinus catenatus was based on a specimen of C. tergeminus, and to conserve the names of both nominal taxa designation of neotypes for each is required.

The purpose of this application, under Articles 23.9.3, 81.1 and 81.2.3 of the Code, is to conserve the name Pachylemur Lamberton, 1948 (Primates, lemuridae), a genus of subfossil Malagasy lemurs, by suppressing the senior subjective synonym Palaeochirogalus Grandidier, 1899 and by designating a type species for the genus Pachylemur Lamberton. Palaeochirogalus Grandidier has never seen any substantial usage whereas Pachylemur Lamberton, 1948 is in universal use; however, Pachylemur Lamberton, 1948 is unavailable because no type species was designated in the original publication. Filhol (1874) previously used the name Pachylemur for a ‘groupe’ of Paleogene primates; we conclude that this name, under either Filhol's or Palmer's (1904) authorship and, in either case, ambiguous as regards availability should be formally suppressed at the genus-group level to prevent confusion.

The Commission has conserved the specific name Cetonia squamosa Gory & Percheron, 1833 by ruling that it is not invalid by reason of being a junior homonym of C. squamosa Lefebvre, 1827 (currently Protaetia (Netocia) squamosa, also cetoniidae), endemic in southern Italy including Sicily.

The Commission has conserved usage of the junior homonym Chaetosoma Westwood, 1851 and of the junior synonym Apodasya Pascoe, 1863 over the newly discovered older name Chaetosoma Chevrolat, 1843. In addition, the Commission has also conserved the beetle family-group name chaetosomatidae Crowson, 1952 by suppressing the older but permanently invalid nematode name chaetosomatidae Claus, 1872.

The Commission has conserved the usage of the family name latridiidae Erichson, 1842 by giving it precedence over the senior name corticariidae Curtis, 1829, and conserved the current usage of the widely used name Corticaria Marsham, 1802 by designation of Corticaria ferruginea Marsham, 1802 as the type species.

A request to give the widely used halictine bee generic names Dialictus and Evylaeus, both proposed by Robertson (1902), precedence over the rarely used but older names Hemihalictus Cockerell, 1897, Sudila Cameron, 1898 and Sphecodogastra Ashmead, 1899 whenever either of the former is considered to be a synonym of any of the latter has not been supported by the Commission.