Key
|
Name |
Authority |
Publication |
Category |
Notes |
Volume |
Page |
Extinct |
Homonym. |
Corr. |

| Psilochalcidia | Steffan 1951 | Feuille Nat., (N.S.), 6, 4. | Hym | | 6 | 250 | | No | No |

| Psilochira | Toxopeus 1948 | Treubia, 19, 447. | Lep | | 6 | 250 | | No | No |

| Psilococcus | Borkhsenius 1952 | Trud. zool. Inst. Akad. Nauk SSSR, Leningr., 12, 269. | Hem | | 6 | 250 | | No | No |

| Psilocollaris | Singh 1954 | J. Wash. Acad. Sci., 44, 24. | Verm (Trem.). | | 6 | 250 | | No | No |

| Psilogaster | Blanchard 1840 | | | (See Psilogastrellus Ghesquière 1946.) | 6 | 250 | | Yes | No |

| Psilogastrellus | Ghesquière 1946 | Rev. Zool. Bot. afr., 39, 368. | Hym | (n.n. pro Psilogaster Blanchard 1840) | 6 | 250 | | No | No |

| Psiloicus | de Morretes 1952 | Arch. Zool. S. Paulo, 8, 112. | Moll | | 6 | 250 | | No | No |

| Psilonotus | Stehli 1954 | | | (See Elliottella Stehli 1955.) | 6 | 250 | | Yes | No |

| Psilonotus | Stehli 1954 | Bull. Amer. Mus. nat. Hist., 105, 323. | Brach | | 6 | 250 | | Yes | No |

| Psilopygoides | Michener 1949 | J. Kans. ent. Soc., 22, 144. | Lep | | 6 | 250 | | No | No |

| Psilosetia | Warren 1900 | Novit. zool., 7, 192. | Lep | [n.n.] | 6 | 250 | | No | No |

| Psilothyris | Cooper 1955 | Smithson, misc. Coll., 131, (4), 10. | Brach | | 6 | 250 | † | No | No |

| Psilotrigonia | Cox 1952 | Proc. malac. Soc. Lond., 29, 53. | Moll | | 6 | 250 | † | No | No |

| Psilotris | Ginsburg 1953 | J. Wash. Acad. Sci., 43, 22. | Pisces | | 6 | 250 | | No | No |

| Psittacobrosus | Carriker 1954 | Rev. bras. Ent., 2, 150. | Malloph | | 6 | 250 | | No | No |

| Psocotoma | Cachan 1952 | Mém. Inst. sci. Madagascar, (E), 1, 255. | Hem | | 6 | 250 | | No | No |

| Psoculus | Roesler 1954 | Beitr. Ent., Berlin, 4, 570. | Psocopt | | 6 | 250 | | No | No |

| Psorosodes | Amsel 1954 | Ark. Zool. (II), 6, 274. | Lep | | 6 | 250 | | No | No |

| Psychidostygia | Daniel 1955 | Mitt. münch. ent. Ges., 44-45, 164. | Lep | | 6 | 250 | | No | No |

| Psychopyge | Termier & Termier 1950 | Actualités scientifiques et industrielles, 1095, 51. | Trilobita | | 6 | 250 | | No | No |

| Psychostenus | Uchida 1955 | Insecta matsum., 19, 32. | Hym | | 6 | 250 | | No | No |

| Psygmomorpha | Diakonoff 1948 | Treubia, 19, 207. | Lep | | 6 | 250 | | No | No |

| Psyllaphorura | Bagnall 1948 | Ann. Mag. nat. Hist., (11), 14, 640. | Collemb | | 6 | 250 | | No | No |

| Psyllencyrtus | Tachikawa 1955 | Kontyû, 23, 63. | Hym | | 6 | 250 | | No | No |

| Ptarmiganoides | Rasetti 1951 | Smithson, Misc. Coll., 116, (5), 178. | Trilobita | | 6 | 250 | | No | No |

| Ptarmus | Smith 1946 | Ann. Mag. nat. Hist., (11), 13, 816. | Pisces | | 6 | 250 | | No | No |

| Pteracarus | Jameson & Chow 1952 | J. Parasit., 38, 218. | Arachn | | 6 | 250 | | No | No |

| Pterartoriola | Roewer 1954 | Katalog der Araneae, 2, 290. | Arachn | | 6 | 250 | | No | No |

| Pterasthenia | Stroyan 1952 | Proc. R. ent. Soc. Lond., (B), 21, 149. | Hem | | 6 | 250 | | No | No |

| Pterelectroma | Iredale 1939 | Sci. Rep. Gt. Barrier Reef Exped. 1928-29, 5, (6), 332. | Moll | | 6 | 250 | | No | No |

| Pteridoteloides | Breuning 1951 | Bull. Inst. Sci. nat. Belg., 27, no. 32, 21. | Col | | 6 | 250 | | No | No |

| Pterinotrema | Caballero y Caballero | Bravo Hollis & Grocott, 1954, Ciencia, Méx., 14, 83. | Verm (Trem.). | | 6 | 250 | | No | No |

| Pterinotrematoides | Caballero y Caballero | & Bravo Hollis 1955, An. Inst. Biol. Mex., 26, 97. | Verm (Trem.). | | 6 | 250 | | No | No |

| Pteriograpta | Novozhilov 1954 | Trud. paleont. Inst. Akad. Nauk SSSR, 48, 67. | Crust | | 6 | 250 | † | No | No |

| Pterocallidium | Börner 1949 | Beitr. taxon. Zool., 1, 49. | Hem | | 6 | 250 | | No | No |

| Pterochitina | Eisenack 1955 | Senckenbergiana Lethaea, 36, 177. | Prot | | 6 | 250 | † | No | No |

| Pteroconus | Branson & Mehl 1933 | | | (See Ptiloconus Sweet 1955.) | 6 | 250 | | No | No |

| Pterogymnus | Freeman 1951 | Dipt. Patagonia and S. Chile, Brit. Mus. (Nat. Hist.), Part 3, 11. | Dipt | | 6 | 250 | | Yes | No |

| Pterolamia | Springer 1950 | Amer. Mus. Novit., no. 1451, 7. | Pisces | (See Pterolamiops Springer 1951.) | 6 | 250 | | Yes | No |

| Pterolamiops | Springer 1951 | Copeia, 1951, 244. | Pisces | (n.n. Pterolamia Springer 1950) | 6 | 250 | | No | No |

| Pterolepidops | Fowler 1947 | Notul. nat., Acad. Philad. no. 187, 5. | Pisces | (n.n. pro Pterolepis Kiaer 1911) | 6 | 250 | | No | No |

| Pterolepis | Kiaer 1911 | | | (See Pterolepidops Fowler 1947.) | 6 | 250 | | Yes | No |

| Pterolibethra | Günther 1940 | Arch. Naturgesch., (N.F.), 9, 498. | Orth | | 6 | 250 | | No | No |

| Pterolimnesia | Viets 1942 | Zool. Anz., 138, 211. | Arachn | | 6 | 250 | | No | No |

| Pterolophiella | Breuning 1952 | Bull. (Ann.) Soc. ent. Belg., 88, 98. | Col | | 6 | 250 | | No | No |

| Pteroma | Hampson 1893 | | | the first reference is "Fauna Brit. Ind., Moths, 1, 296" [Publ'd. 10 Jan. 1893]. | 6 | 250 | | Yes | Yes |

| Pteromalomorpha | Risbec 1951 | Mém. Inst. franç. Afr. noire, no. 13, 176. | Hym | | 6 | 250 | | No | No |

| Pteromugil | Smith 1948 | Ann Mag. nat. Hist., (11), 14, 837. | Pisces | | 6 | 250 | | No | No |

| Pteronephila | Gressitt (1950) | Proc. Hawaii, ent. Soc., 14, 69. | Col | | 6 | 250 | | No | No |

| Pteroniscus | Ghekker 1948 | Trud. paleont. Inst. Akad. Nauk SSSR, 15, 39. | Pisces | | 6 | 250 | † | No | No |

| Pteronius | Blackwelder 1952 | Bull. U.S. nat. Mus., no. 200, 331. | Col | | 6 | 250 | | No | No |

| Pteronyssoides | Hull 1931 | Vasculum, 17, 145. | Arachn | | 6 | 250 | | No | No |

| Pterooderella | Risbec 1952 | Mém. Inst. sci. Madagascar, (E), 2, 84. | Hym | | 6 | 250 | | No | No |

| Pterophaea | Kiriakoff 1953 | Ann. Mus. Congo belge, (Sér. 8) Sci. zool., 26, 51. | Lep | | 6 | 250 | † | No | No |

| Pteroponera | Bernard 1949 | Ann. Soc. ent. Fr., 116, 3. | Hym | | 6 | 250 | | No | No |

| Pterospermopsis | Wetzel 1952 | Jb. Reichsst. Bodenforsch. 66. 412. | Prot | | 6 | 250 | † | No | No |

| Pterospirifer | Dunbar 1955 | Medd. Grõnl., 110 (3), 128. | Brach | | 6 | 250 | | No | No |