41 



GYRINID^E. 



JOHN L. LECONTE. The G}a-inidaB of America, north of Mexico. 

 <Proc. Acad. Nat. Sci. Phila., 1868, pp. 365-373. 



M. REGIMBART. Essai monographique de la famille des Gyrinides. 

 <Ann. Soc. Entom. de France, 1882-83, 8 pis. 

 Treats of the Gyrinidie of the whole globe. 



C. H. ROBERTS. The species of Dineutes of America, north of 

 Mexico. <Trans. Amer. Entom. Soc., 1895, pp. 279-288. 







HYDROPHILID^E. 



JOHN L. LE CONTE. Synopsis of the Hydrophilidse of the United 

 States. <Proc. Acad. Nat. Sci. Phila., Vol. VII, 1855, pp. 

 356-375. 



GEORGE H. HORN. Revision of the genera and species of the tribe 

 Hydrobiini. <Proc. Amer. Philos. Soc,, 1873, pp. 118-137. 



GEORGE H. HORN. Notes on the species of Ochthebius of Boreal 

 America. <Trans. Amer. Entom. Soc., 1890, pp. 18-26. 



GEORGE H. HORN. A revision of the Sphaeridiini inhabiting Boreal 

 America. <Trans. Amer. Entom. Soc., 1890, pp. 279-314. 



GEORGE H. HORN. Notes on some Hydrobiini of Boreal America. 

 <Trans. Amer. Entom. Soc,, 1890,' pp. 237-278. 



Contains synopses of Philydrus and allied genera and of Hydrobius and 

 Creniphilos, Pin. Ill and IV. 



T. L. CASEY. [See work cited under Corylophidae.] 



Table of species of Lirnnebius. 



JOHN L. LECONTE. Synopsis of the Silphales of America, north 

 of Mexico. <Proc. Acad. Nat. Sci. Phila., Vol. VI, 1853, pp. 



274-287. 



GEORGE H. HORN. Synopsis of the Silphidse of the United State, 

 with reference to the genera of other countries. <Trans. Amer. 

 Entom. Soc., Vol. VIII, 1880, pp. 219-322, Pis. V-VII. 



SCYDM^NID^E. 



JOHN L. LECONTE. Synopsis of the Scydmgenidse of the United 



States. <Proc. Acad. Nat. Sci. Phila., Vol. VI, 1854, pp. 149-157. 



T. L. CASEY. Coleopterological notices, VII. <Ann. N. Y. Acad. 



Sci., Vol. IX, 1897, pp. 285-684. 

 Synopsis of the Scydmaenidse. 



