362 lUhiois State Laboratory of Natural Historij. 



X. POROBLLIO Latr. 



1. P. coNVEXUS Johnsson. SverigesOniscider, 32 (18(i8). 

 — StHxheycj. Ofversigt af Vetensk.-Akad. Forhaudl, 1875, 

 No. 2, 60. ' 



Oniscus convexus DeGeer (1778). 

 Hab. — Massachusetts, and Canada near Niagara (Eisen). 



2. P. DUBius Brandt. Conspectus Oniscodorum, 178 

 (1833). 



Hab. — ? [This species is cited by Stuxberg loc. cit. 58.] 



3. P. FORMOSUS Stuxberg. Ofversigt af Vetensk.-Akad. 

 Forhandl., 1875, No. 2, 57. 



Hab. — California {Eisen). 



4. P. GEMMULATUS Dana. Crustacea, 725, t. 47, fig. 7 

 (1853). 



Hab. — Washington Territory {Dana). 



5. P. GLABER Fitch. Trans. N. Y. State Agric. Soc. 1854, 

 824; First and Second Rep. on Insects, 120 (1856). 



Hah.— New York {Fitch). 



6. P. iMMACULATUS Fitch. Traus. N. Y. State Agric. Soc. 

 1854, 824; First and Second Rep. on Insects, 120 (1856). 



Hab. — Illinois and Arkansas {Fitch). 



7. P. LiMATUS Fitch. Trans. N. Y. State Agric. Soc. 1854, 

 824; First and Second Rep. on Insects, 120 (1856). 



77o6.— New York {Fitch). 



S. P. MACULicoRNis Koch. Deutschlands Crustaceen^ 34, 

 16 ( 1 SAO). —Stuxberg. Ofversigt af Veteiisk.-Akad. Forhandh 

 1875, No. 2, 55. 



Hab. — California {Eisen). 



9. P. MiXTUS Fitch. Trans. N. Y. State Agric. Soc. 1854, 

 824; First and Second Report on Insects, 120 (1856). 



Hah.— New York (Fitch). 



10. p. NIGER Say. Jour. Phila. Acad, i, 432 ( 1811).— De- 

 Kaij. Nat. Hist. N. Y., vi, 52 (1844). 



//rtT).— Pennsylvania {Say). 



