International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS

taxa names:

Py

Pycnocrossos Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 553 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069  

Pycnodiastictopelte Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 549 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069  

Pycnotrematos Holmberg 1918, Physis (Buenos Aires), 4: 153 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069 

pygmaea Grant 1956 [originally in Anthoscopus], Ann. Mag. nat. Hist., (12)9: 368 (a junior primary homonym of pygmaea Horniman 1940 [originally in Anthoscopus]). Opinion 480 

pygmaea Horniman 1940 [originally in Anthoscopus], Prelim. Descr. new Birds: 4 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 480  

pygmaea Sars 1870 [originally in Cryptocheles], Forh. Vidensk.-Selsk. Christiania, 1869: 150 (specific name of the type species of Cryptocheles Sars 1870) (Crustacea, Decapoda). Opinion 470

pygmaea Draparnaud [1801] [originally in Helix], Tabl. Moll. terrestr. fluviat. France: 93 (Gastropoda). Opinion 336

pygmaea Fabricius 1798 [originally in Phryganea], Suppl. Entomol. syst.: 202 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 589  

pygmaea Linnaeus 1758 [originally in Platalea], Systema Naturae, Ed. 10, vol. 1, p. 140 (specific name of the type species of Eurynorhynchus Nilsson 1821) (Aves). Direction 43

pygmaea Draparnaud [1801] [originally in Pupa], Tabl. Moll. terrestr. fluviat. France: 57 (Gastropoda). Opinion 336 

pygmaeum Gravenhorst 1806 [originally in Omalium], Monographia Coleopterorum Micropterorum, p. 206, ruled under the plenary power not to be given priority over Omalium testaceum Erichson 1840 whenever they are considered to be synonyms (Insecta, Coleoptera). Opinion 2086 

pygmaeus Fallén 1807 [originally in Lygaeus], Mon. Cimicum Svec.: 73, as interpreted by the specimen described by Péricart 1966 (Bull. zool. Nomencl., 23: 122) and designated as neotype under the plenary power (specific name of the type species of Acompocoris Reuter 1875) (Insecta, Hemiptera). Opinion 863  

pygmaeus Dejean 1831 [originally in Morio], Species général des coléoptères, de la collection de M. le Comte Dejean. Tome cinquième, p. 512, specific name of the type species of Nomius Laporte 1835 (Insecta, Coleoptera). Opinion 2272 

pygmaeus Linnaeus 1767 [originally in Sirex], Systema Naturae, Ed. 12, vol. 1, part 2, p. 929 (specific name of the type species of Cephus Latreille [1802]) (Insecta, Hymenoptera). Direction 4

pygmaeus Paykull 1800 [originally in Staphylinus], Fauna Suecica. Insecta, vol. 3, p. 410 (a nomen protectum) (Insecta, Coleoptera). Opinion 2053  

pygmaeus Leach 1825 [originally in Vespertilio], Zoological Journal, 1(4): 559, as defined by the neotype (adult, female specimen no. BMNH 1999.43 from Chew Valley Lake, Bath and North East Somerset, U.K.) designated under the plenary power (Mammalia). Opinion 2028  

Pygophora Schiner 1868, Nov. Reise, Diptera: 295 (gender: feminine) (type species, by monotypy: Pygophora apicalis Schiner 1868, Nov. Reise, Diptera: 295) (Insecta, Diptera). Opinion 867 

Pylodictis Rafinesque 1819, Journal de Physique, de Chimie et d’Histoire Naturelle, et des Arts, 88: 422 (gender: masculine) (type species, by monotypy: Pylodictis limosus Rafinesque 1819, a junior subjective synonym of Silurus olivaris Rafinesque 1818) (Osteichthyes, Siluriformes). Opinion 1584 

PYRALES Swinhoe 1890, Trans. entomol. Soc. London, 1890: 268 (type genus: Pyralis Linnaeus 1758) (an incorrect subsequent spelling for PYRALIDAE (correction of PYRALITES) Latreille 1809). Opinion 450  

PYRALIDA [Leach 1815], in Brewster’s Edinburgh Ency., 9(1): 135 (type genus: Pyralis Linnaeus 1758) (an incorrect subsequent spelling for PYRALIDAE (correction of PYRALITES) Latreille 1809). Opinion 450  

PYRALIDAE (correction of PYRALITES) Latreille 1809, Gen. Crust. Ins., 4: 192, 228 (type genus: Pyralis Linnaeus 1758) (Insecta, Lepidoptera). Opinion 450 

PYRALIDES Billberg 1820, Enum. Ins. Mus. Billberg: 92 (type genus: Pyralis Linnaeus 1758) (an incorrect subsequent spelling for PYRALIDAE (correction of PYRALITES) Latreille 1809). Opinion 450 

PYRALIDIDAE Lederer 1863, Wien. entomol. Monats., 7: 257 (type genus: Pyralis Linnaeus 1758) (an incorrect subsequent spelling for PYRALIDAE (correction of PYRALITES) Latreille 1809). Opinion 450  

PYRALIDIDES Zetterstedt 1840, Ins. lapp.: vi, 969 (type genus: Pyralis Linnaeus 1758) (an incorrect subsequent spelling for PYRALIDAE (correction of PYRALITES) Latreille 1809). Opinion 450 

PYRALIDOIDAE Herrich-Schaeffer, 1856, Syst. Bearbeit. Schmett. Europ., 6, Syst. Lep.: 41 (type genus: Pyralis Linnaeus 1758) (an incorrect subsequent spelling for PYRALIDAE (correction of PYRALITES) Latreille 1809). Opinion 450  

Pyralis Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 533 (conserved under the plenary power as of subgeneric status) (gender: feminine) (type species, by designation under the plenary power: Phalaena farinalis Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 533) (Insecta, Lepidoptera). Opinion 450  

PYRALITES Latreille 1809, Gen. Crust. Ins., 4: 192, 228 (type genus: Pyralis Linnaeus 1758) (an incorrect original spelling for PYRALIDAE Latreille 1809). Opinion 450

PYRALOIDI Guénée 1845, Europ. microlep. Index meth.: 57 (type genus: Pyralis Linnaeus 1758) (an incorrect subsequent spelling for PYRALIDAE (correction of PYRALITES) Latreille 1809). Opinion 450  

pyramidata Linnaeus 1767 [originally in Clio], Systema Naturae, Ed. 12, vol. 1, p. 1094 (specific name of the type species of Clio Linnaeus 1767) (Pteropoda). Opinion 2133 

pyramidata Draparnaud [1805] [originally in Helix], Hist. nat. Moll. terrestr. fluviat. France: 80 (Gastropoda). Opinion 336 

Pyramidella Lamarck 1799, Mém. Soc. Hist. nat. Paris, 1799: 76 (conserved under the plenary power) (gender: feminine) (type species, by monotypy: Trochus dolabratus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 760) (Gastropoda). Opinion 386  

PYRAMIDELLIDAE Gray 1840, Syn. Contents Brit. Mus. (ed. 42): 148 (type genus: Pyramidella Lamarck 1799) (Gastropoda). Direction 54 

Pyramidelligenus [Renier] [1807], [Tav. serv. Class. Conn. Anim.]: Tav. VIII (included in a work rejected for nomenclatural purposes). Opinion 427 

Pyramidula Fitzinger 1833, Beitr. Landesk. Oesterreich Enns, 3: 95 (gender: feminine) (type species, by monotypy: Helix rupestris Draparnaud [1801], Tabl. Moll. terrestr. fluviat. France: 71) (Gastropoda). Opinion 335  

PYRAMIDULIDAE Kennard & Woodward 1914, List brit. non-marine Moll.: 1 (type genus: Pyramidula Fitzinger 1833) (Gastropoda). Direction 27  

pyrausta Hübner [1819] [originally in Phalaena], Verzeichniss bekannter Schmettlinge, p. 163 (specific name of the type species of Ethmia Hübner [1819]) (Insecta, Lepidoptera). Opinion 1544

pyrenaica Férussac 1821 [originally in Helicolimax], Tabl. syst. Anim. Moll. terrestr. fluviat.: 25 (Gastropoda). Opinion 336  

Pyrgomorpha Audinet-Serville [1838], Hist. nat. Ins. Orth.: 583 (gender: feminine) (type species, by designation by Kirby 1910 (Syn. Cat. Orth., 3: 324): Truxalis rosea Charpentier 1825, Horae entomologicae: 128, valid name: Acrydium conicum Olivier 1791) (Insecta, Orthoptera). Opinion 969 

PYRGOMORPHIDAE (correction of PYRGOMOPHIDEN) Brunner von Wattenwyl 1874, Verz. zool.- bot. Ges. Wien, 24: 225 (type genus: Pyrgomorpha Audinet-Serville [1838]) ruled under the plenary power to be given precedence over POEKILOCERIDAE Burmeister 1840 and PHYMATEIDAE Burmeister 1840 under any circumstances that may lead to these names being regarded as synonymous and co-ordinate (Insecta, Orthoptera). Opinion 969

Pyrgus Hübner [1819], Verz. bekannt. Schmett. (7): 109 (gender: masculine) (type species, by designation by Westwood 1841 (in Humphreys & Westwood, Brit. Butts. Transformations (ed. 1): 120): Papilio alveolus Hübner [1800-03], Samml. europ. Schmett.: pl. Pap. 92, figs. 466, 467, valid name: Papilio malvae Linnaeus 1758) (Insecta, Lepidoptera). Opinion 278 

pyri Boyer de Fonscolombe 1841 [originally in Aphis], Ann. Soc. entomol. France, 10: 189, 190 (Insecta, Hemiptera). Opinion 1188  

pyri Kittel 1827 [originally in Aphis], Mém. Soc. linn. Paris, 5: 150 (included in a work rejected for nomenclatural purposes). Opinion 1188  

pyri Vallot 1802 [originally in Aphis], Concordance systématique ... à l’ouvrage de Réaumur intitulé: Mémoires pour servir à l’histoire des Insectes (Paris): 94 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 1188 

pyri [Denis & Schiffermüller] 1775 [originally in Bombyx], Ankündung [sic] eines systematischen Werkes von den Schmetterlinge der Wiener Gegend, 2(2): 149 (specific name of the type species of Saturnia Schrank 1802) ruled under the plenary power to be given precedence over the specific name major Linnaeus 1758, as published in the combination Phalaena (Bombyx) pavonia major, whenever the two names are considered synonyms (Insecta, Lepidoptera). Opinion 1170

pyri Linnaeus 1758 [originally in Curculio], Systema Naturae, Ed. 10, vol. 1, p. 384 (specific name of the type species of Phyllobius Germar 1824) (Insecta, Coleoptera). Opinion 1179

pyri Retzius 1783 [originally in Phalaena pelicaria] (Arthropoda). ICZN 2014: Opinion 2333

pyri Pagenstecher 1857 [originally in Phytoptus], Verhandlungen des naturhistorisch-medicinischen Vereins zu Heidelberg, 1(2): 48 (specific name of the type species of Eriophyes von Siebold 1851) (Arachnida, Acarina). Opinion 1521 

pyriformis Adams 1850 [originally in Bulla (Atya)], in Sowerby, Thes. Conch., 2: 589 (specific name of the type species of Pyrunculus Pilsbry 1895) (Trilobita). Opinion 512

pyriformis Michelin [1847] [originally in Geodia], Iconogr. zoophyt.: 178 (specific name of the type species of Axopora Milne Edwards & Haime [1850]) (Hydrozoa). Opinion 790  

pyriformis Ehrenberg 1830 [originally in Leucophrys], Organization syst. geogr. Verhalt. lnfusionsth.: 96 (valid name at the date of Opinion 915 of the type species of Tetrahymena Furgason 1940) (Ciliophora). Opinion 915 

Pyrochroa Geoffroy 1762, Histoire abrégée des insectes qui se trouvent aux environs de Paris, vol. 1, p. 338 (gender: feminine) (type species, by subsequent designation by Westwood [1838], Synopsis of the British insects, p. 30 (published with An introduction to the modern classification of insects, vol. 1, part 3): Cantharis coccinea Linnaeus 1761) (Insecta, Coleoptera). Opinion 1754  

Pyrophaena Schiner 1860, Wiener Entomologische Monatschrift, 4: 213 (gender: feminine) (type species, by monotypy: Syrphus rosarum Fabricius 1787) (Insecta, Diptera). Opinion 1744 

Pyrosoma Dahlbom 1854, Hymen. Europ., 2: 96 (a nomen nudum). Direction 72 

Pyrosoma Péron 1804, Ann. Mus. Hist. nat., Paris, 4: 437, 440, pl. 72 (gender: neuter) (type species, by monotypy: Pyrosoma atlanticum Péron 1804, Ann. Mus. Hist. nat., Paris, 4: 440) (Urochordata). Opinion 77 

Pyrosoma Smith & Kilborne 1893, Bull. U.S. Bur. Anim. Ind. (No. 1): 67 (a junior homonym of Pyrosoma Péron 1804). Direction 72

Pyrrhocorax [Tunstall] 1771, Orn. Brit.: 2 (conserved under the plenary power) (gender: masculine) (type species, by monotypy: Upupa pyrrhocorax Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 118) (Aves). Opinion 404  

Pyrrhocorax Brisson 1760, Ornithologia, 2: 30, 31 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 404  

Pyrrhocorax Nozeman & Vosmaer 1758, Geslacht. Vogel.: 1, 15 (Dutch translation of Moehring 1752, Avium Genera) (included in a work rejected for nomenclatural purposes). Opinion 404 

Pyrrhocorax Vieillot 1816, Analyse nouv. Ornith. élém.: 36 (a junior homonym of Pyrrhocorax [Tunstall] 1771). Opinion 404  

pyrrhocorax Linnaeus 1758 [originally in Upupa], Systema Naturae, Ed. 10, vol. 1, p. 118 (specific name of the type species of Pyrrhocorax [Tunstall] 1771) (Aves). Opinion 404 

pyrrhopterus Latham 1801 [originally in Psittacus], Index orn., Suppl.: xxii (specific name of the type species of Brotogeris Vigors 1825) (Aves). Direction 43  

pyrrhulinus Swinhoe 1876 [originally in Emberiza], Ibis, (3)5: 333, pl. VIII, fig. 2 (Aves). Opinion 408

Pyrrhulopsis Reichenbach 1850 (Aves). ICZN 2016: Opinion 2383

Pyruligenus [Renier] [1807], [Tav. serv. Class. Conn. Anim.]: Tav. VIII (included in a work rejected for nomenclatural purposes). Opinion 427 

pyrum Ehrenberg 1830 [originally in Trichoda], Organization syst. geogr. Verhalt. Infusionsth.: 96 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 915 

pyrum Linnaeus 1767 [originally in Voluta], Systema Naturae, Ed. 12, vol. 1, part 2, p. 1195 (specific name of the type species of Turbinella Lamarck 1799) (Gastropoda). Opinion 489

Pyrunculus Pilsbry 1895, in Tryon & Pilsbry, Man. Conch., (1)15: 181, 229 (gender: masculine) (type species, by original designation: Bulla (Atya) pyriformis Adams 1850, in Sowerby, Thes. Conch., 2: 589) (Gastropoda). Opinion 512 

Pyura Molina 1782, Sag. Stor. nat. Chili: 196 (gender: feminine) (type species, by monotypy: Pyura chilensis Molina 1782, Sag. Stor. nat. Chili: 348) (Ascidiacea). Opinion 1182

PYURIDAE Hartmeyer 1908, Zool. Annalen, 3: 7, 15, 26 (type genus: Pyura Molina 1782) (Ascidiacea). Opinion 1182  

Pyxidognathus Milne Edwards 1879, Bull. Sci. Soc. philomat. Paris, (7)3: 109 (gender: masculine) (type species, by monotypy: Pyxidognathus granulosus Milne Edwards 1879, Bull. Sci. Soc. philomat. Paris, (7)3: 109) (Crustacea, Decapoda). Opinion 85, Direction 37