614 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



PORCELLIO L^VIS Latreille. 



Porcettio Isevis LATREILLE, Hist. Nat. des Crust, et Insectes, VII, 1804, p. 46; 



Genera Crustaceorum et Insectorum, I, 1806, p. 71. LEACH, Edinb. Encycl., 



VII, 1813-14, p. 406; Trans. Linn. Soc. London, XI, 1815, p. 375. 

 Oniscus Isevis LAMARCK, Hist. Nat. des animaux sans Vertebres, V, 1818, p. 154. 

 Porcellio degeerli AUDOUIN and SAVKINY, Descript. de 1'Egypte, 1826, p. 289, pi. 



xm, fig. 5. 

 Porcellio eucercus BRANDT, Bull. Soc. Imp. d. Moscou, VI, 1833, p. 177. MILNE 



EDWARDS, Hist. Nat. des Crust., Ill, 1840, p. 168. 

 Porcellio syriacus BRANDT, Bull. Soc. Imp. d. Moscou, VI, 1833, p. 178. MILNE 



EDWARDS, Hist. Nat. des Crust., Ill, 1840, p. 170. 



Porcellio cinerascens BRANDT, Bull. Soc. Imp. d. Moscou, VI, 1833, p. 178. 

 Porcellio dubius BRANDT, Bull. Soc. Imp. d. Moscou, VI, 1833, p. 178. MILNE 



EDWARDS, Hist. Nat. des Crust., Ill, 1840, p. 170. 

 Porcellio poeyi GUERIN, Comptes Rendus, 1837, p. 132. 

 Porcellio Isems MILNE EDWARDS, Hist. Nat. des Crust., Ill, 1840, p. 169. 

 Porcellio urbicus KOCH, Deutsch. Crust., 1835-1844, p. 36. 

 Porcettio ovatus ZADDACH, Synops. Crust Pruss. prodrornus, 1844, p. 13. 

 Porcellio degeerii LUCAS, Expl. d'Alg., I, 1849, pp. 69, 139. 

 Porcellio Isevis LEREBOULLET, Mm. de la Soc. de Strasbourg, IV, 1853, p. 45, pi. i, 



fig. 7; pi. in, figs. 55-60. 

 Porcellio cubensis SAUSSURE, M6m. Soc. phys. Geneve, XIV, 1858, p. 477, pi. v, 



fig. 35. 

 Porcellio sumichrosti SAUSSURE, Me"m. Soc. phys. Geneve, XIV, 1858, p. 478, pi. v, 



fig. 36. 



Porcellio cotillx SAUSSURE, M<jm. Soc. phys. Geneve, XIV, 1858, p. 478, pi. v, fig. 37. 

 Porcellio mexicanus SAUSSURE, Me"m. Soc. phys. Geneve, XIV, 1858, p. 479, pi. v, 



figs. 39, 40. 



Porcellio aztecus SAUSSURE, Mem. Soc. phys. Geneve, XIV, 1858, p. 479, pi. v, fig. 38. 

 Porcellio Isevis BUDDE-LUND, Nat. Tidsskrift., 3dser., VII, 1870, p. 236. 

 Porcellio aztecus MIERS, Proc. Zool. Soc. Lond., 1877, p. 669. 

 Porcellio Isnis BUDDE-LUND, Crust. Isop. Terrestria, 1885, pp. 138-141 (see Budde- 



Lund for further synonymy); Entom. Meddelel., IV, 1893-94, p. 118. SARS, 



Crust, of Norway, II, 1899, pp. 181-182, pi. LXXIX, fig. 2. RICHARDSON, 



Proc. U. S. Nat. Mus., XXI, 1899, pp. 862-863; Amer. Nat., XXXIV, 1900, 



p. 304; Proc. U. S. Nat. Mus., XXI, 1901, pp. 566-569. 



Localities. Oakland, California; Cincinnati, Ohio; Raymond, Cal- 

 ifornia; San Francisco Bay, California; San Antonio, Texas; St. 

 Marys, Georgia; New Providence, Bahamas; Washington, District of 

 Columbia; Hamilton,. Bermudas; Coif ax, California; Las Cruces, New 

 Mexico; Unalaska; Key West, Florida; Monterey Bay, California; 



vato. Pedum ultimi paris articulus basalis infra visus eadem latitudine ac longitudine, 

 supra convexus; appendix exterior subdepressa, lanceolata, margine interiore sub- 

 recto, exteriore curvato, latitudine maxima quartam longitudinis partem sequante; 

 appendix interior teres, exteriore tertia parte brevior. 



Color dorsi ex rufo fusco-griseus, immixtis maculis pallidioribus oblongis irregu- 

 laribus numerosis, in duas series latas parvo intervallo distantes digestis. Cauda 

 plerumque unicolor segmento ultimo ad basin bi- (vel tri-) punctate. 



Variat vitta longitudinali albo-grisea serieque macularum majorum ejusdem coloris 

 lateral!. 



Longitudo 13 mm., latitude 6 mm.; longitudo antennarum exteriorum 6 mm. 

 STUXBERO, 0fvers. Vet. Akad. Forh., 1875, No. 2, p. 57. 



