110 GEO. H. HORN, M. D. 



A. lobatus Horn, Trans. Ara. Eut. Soc. 1871. p. 287. 

 A. hirsutus Horn, Trans. Am. Ent. Soc. 1871, p. 288. 



EITPARIA Sew. 

 E. castanea Serv., Enc. Meth. Ins. p. 357; Westvv., Trans. Ent. Soc. Loud, iv, 

 p. 239, pi. 17, fig. 3; Horn, Trans. Am. Ent. Soc. 1871, p. 239. 



RHYSSEHIUS Muls. 

 Rh. scaber Hald., Jour. Acad. 1848, p. 107 ; Horn, Trans. Am. Eut. Soc. 1871, 

 p. 290. 

 Rh. californicus Horn, Trans. Am. Ent. Soc. 1871, p. 290. 

 Rh. sonatus Lee, Trans. Kans. Acad. Sc. x, 1881, p. 77. 

 Rh. riparius Horn, Trans. Am. Ent. Soc. 1871, p. 290. 

 cselatus Lee, Trans. Kaus. Acad. Sc. x, 1881, p. 77. 



PLEUROPHORUvS Muls. 

 P. csesus Pauz., Fauu. Germ. 35, 2; Erich., Ins. Deutsch. iii, p. 913; Horn, 

 Trans. Am. Ent. Soc. 1871, p. 291. 

 P. ventralis n. sp. 



PSA:fIMODIUS Serv. 



Ps. bidens Horn, Trans. Am. Eut. Soc. 1871, p. 293. 



Ps. eeg-ialioides Hald., Jour. Acad. 1848, p. 107; Horn. Tran.s. Am. Ent. Soc 

 1871, p. 292. 



Ps. quinqueplicatus Horn, Trans. Am. Eut. Soc. 1871, p. 292. 



Ps. intarruptus Say, Bost. Jour. 1. p. 178 ; edit. Lee. ii, p. 651 ; Horn. Trans. 

 Am. Eut. Soc. 1871, p. 292. 



Ps. nanus DeGeer {Scarnbseus), Mem. Ins. iv. p. 318; Harold, Stett. Zeit. 1867, 

 p. 282. 



parvidus Chev., Ann. Fr. 1864, p. 415. 



Ps. cselatus Lee. {Aegialia), Pacif. R. E. Rep. 1857, App. i, p. 42; Horn, Trans. 

 Am. Eut. Soc. 1871, p. 292. 



Vs. hydropicus u. sp. 



Ps. ? clypeatus Say {Aphodius), Long's Second Exped. p. 228 ; edit. Lee. i, p. 

 183 (unknown to me). 



^GIAL,IA Latr. 



^. rufescens Horn, ante. 



rufa \\ Lee, Proc. Amer. Philos. Soc. 1878, p. 610. 



^. cylindrica Esch. (Psammodius), Entomogr. i, p. 11; Maun. {Oxyomns), 

 Bull. Mosc. 1843, ii, p. 262; idem. 1853, iii, p. 220: Horn, Trans. 1871, p. 293. 



.ZE. lacustris Lee, Agass. Lake Superior, 1850, p. 225 ; Horn, Trans. Am. Eut. 

 Soc. 1871, p. 293. 



? exin-ain Maun., Bull. Mosc. 1853, iii, p. 219. 



^. Blanchardi n. sp. 



^. pusilla u. sp. 



M. conferta Horn, Trans. Am. Eut. Soc. 1871, p. 294. 



M. latispina Lee, Proc. Amer. Philos. Soc. 1878, p. 611. 



^. opifex u. sp. 



M. crassa Lee, Pacif. R. E. Rep. 1857, App. 1, p. 42 ; Horn, Trans. Am. Eut. 

 Soe 1871, p. 294. 



M. spissipes Lee, Proc. Amer. Philos. Soc. 1878, p. 611. 



