41 



GTEINIDiE. 



John L. LeConte.— The Gyrinidse 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 Gyrinidse of the whole globe. 



C. H. Roberts.— The species of Dineutes of America, north of 

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



HYDEOPHILIDiE. 



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 Sphseridiini inhabiting Boreal 

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



George H. Horn. — Notes on some Hj^drobiini of Boreal America. 

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



Contains synopses of Philydrus and allied genera and of Hydrobius and 

 Creniphilus, Pis. Ill and IV. 



T. L. Casey. — [See work cited under Corylophidse.] 

 Table of species of Limnebius. 



SILPHIDiE. 



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 Silphid* of the United States, 

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

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



SCTDM^NID^. 



John L. LeConte. — Synopsis of the Scydmsenidse 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 Scydmsenidse. 



