1890.] E. T. ktV'insoii — Catalogue of the Family Dyt'iQcidsB. 131 



Genus PELT0D1?TES. 



K6gimbart, Ann, Soc. Ent. Fr., (5s.) viii, 1878, p. 450, 477. 



Cnemidotus, Erichson, Gen. Dytic, 1832, p. 48 {/lec Hlig6r) : Leconte Sc 

 Horn,, Class. Col., p. 61. 



sumatrensis, Kegimbart, Notes Leyden Mus., vii, 1885, p. 55. 

 Hab. Sumatra. 



AMPHIZOINI :— (^w^/moi(fa) Lacordaire, Gen. Col., i, 1854, p. 409. 



Amphizoidce, Horn, Gen. Carab., 1881, p. 92 : Leconte & Horn. Class, 

 Col., 1883, p. 59, 539. 

 The species of this subfamily are of small size, and are found clinging to logs and 

 stones under the surface of streams. 



Genus AMPHIZOA. 



Leconte, Proc. Acad, Phil,, vi, (Jan.) 1853, p. 227 : Lacord., Gen. Col., i, p. 409 : 

 Matthews, Cist. Ent., 1872, p. 119 : Horn, Kep. Un. St. Geol. Surv., 1872-73, 

 p. 717 : Sharp, Dytisc, p. 317, 844, 974 : Leconte & Horn, Class. Col., 

 p. 59. 



Dysmathes, Mannerheim, Bull. Mosc., xxvi (3), (July) 1853, p. 264 : Lacord., 

 Gen. Col., v, p. 60 : Mun. Cat., p. 1834 : Sall6, Bull. Soc. Ent. Fr., (5s,) 

 iv, 1874, p. ccxxii. 



Davidis, Lucas, Bull. Soc. Ent. Fr,, (6s.) ii, 1882, p. clvii. 

 Hab. E. Tibet, Moupin. 



HYDRACHNINI :— 



Pelobides, Lacordaire, Gen. Col., i, 1854, p. 412. 



Felobidcs, Horn, Gen. Carab., 1881, p. 92 : Sharp, Dytisc, p. 259, 827, 

 974. 



Genus HYDRACHNA, 



Fabr., Syst. Eleuth , i, 1801 p. 225 : Latreille, Hist. Nat. Crust. Ins. iii, 1802, 

 p. 76 : Mun. Cat., p. 427. 



Hygriobia, Latreille, Gen. Crust. Ins., i, 1806, p. 233 : Hygrohia auct, 



Hyphydrus, Latreille, I.e.. p. 233. 



PaeloMuSy Schonherr, Syn. Ins., ii, 1808, p. 27. 



Pelohius, Brulle, Hist. Nat. Ins. Col., ii, p. 204 : Jacq. Duval, Gen. Co!. 



Eur.,i, p. 70 : Sharp, Dytisc, p. 259, 827, 974, et auct. 

 There are but three other species of this genus described, one European and two 

 Australian. They are of moderate size, very convex beneath, the surface very 

 densely punctured, not pubescent. 



Davidii (HygroUa), Bedel, Bull. Soc. Ent., Fr., (6s,) iii, 1883, p. xxiii. 

 Hab. China, Kiangsi. 



DYTISCINI : -Sharp, Dytisc, p. 527, 967 ; id., Biol. Centr. Amer., Col., i (2), p. 3 : 

 Leconte & Horn, Class. Col., 1883, p. 61. 



HydrocantTiares, Latreille, Hist. Nat. Crust. Ins., iii, 1802, p. 74 ; id. 

 Gen. Crust. Ins., i, 1806 p. 228 : Brulle, Hist. Nat. Ins., Col., ii, 1835, 

 p. 182. Dyticidce, Westwood, Class. Ins., i, 1839, p, 95. 

 The Dytiscini are aquatic in their habits, and differ from the Carabidce chiefly in 

 the absence of the antecoxal piece of the metasternum, and the natatorial leo-s. 



