1890.] E. T. Atkinson — Catalogue of the Family Dytiscidse. 141 



Genus DERONECTES- 



Sharp, Dytisc., p. 418, 865 ; id., Biol. Centr. Amer., CjL, i (2), p. 26 : Leconte & 



Horn, Class. Col., p. 64. 

 griseostriatus (Dytiscus), Degeer, Ins., iv, 1774, p. 103 : Sturm, Ins., ix, p. 21, 

 t. 204, f. a. A. : Aube, Dejean Spec, vi, p. 541 : Sharp, Dytisc, p. 434. 



catascopium (Hydroporus), Say, Trans. Am. Phil. S. Philad., ii, 1825, 



p. 103. 

 inter ruptus (Hydroporus), Say, I.e., iv. 1834, p. 415. 

 pirallelus {Hydroporus), Say, Journ. Ac. N. S. Philad., iii, 1832, p. 153. 

 halensis (Dytiscus), Paykull, Faun. Suec, i, 1798, p. 230. 

 qvadristriatus (Hyphidrus), Eschscholtz, Mem. Mosc, vi, 1823, p. 107. 

 1 var. Piocliardii, Regime., Ann. Soc. Ent. Fr., (53.) vii, 1877, p. 350 : Sharp, 



Dytisc. . p. 806. 



Hab. Alps, Pyrenees, W. Europe, Arctic Asia, Pankong Valley, N. W. 

 Himalaya: W. America, Lake Superior [Ind. Mus., Pankong Valley]. 



indicus, Sharp, Dytisc, p. 431. 

 Hab. N. India. 



Genus HYDROPORUS. 



Clairville, Ent. Helv., ii, 1806, p. 182 : Aube, Dejean Spec, vi, p. 468 : Lacord., Gen- 

 Co!., i, p. 415 : Mun. Cat., p. 429, pt : Sharp, Dytisc, p. 435, 868 ; id., Biol. Centr, 

 Amer., Col., i (2), p. 28 : Leconte & Horn, Class. Col., p. 64. 



Graptodytes, Seidlitz, Bestimm. tab. Dytisc, in Verh. Ver. Bruno, xxv, 



1887, p. 57. 

 Oreodytes, Seidlitz, /. c, p. 57. 

 Tola, Gozis, Recherche, i, 1886, p. 8. 

 Also perhaps includes Bidessus and Deronectis, Sharp as subgenera. 



aberrans, Clark, Trans. Eut. S. Lond., (33.) i, 1863, p. 426 : Sharp, Dytisc, p. 786 

 (gen dub.). 



Hab. Java. 



quadricostatus, Aube, Dejean Spec, vi, 1838, p. 487. (gen. dub,). 

 Hab. Bombay. 



COLYMBETINI, Sharp, Dytisc, p. 490 : Leconte & Horn, Class. Col., 1883, p. 65. 

 Agabini, Sharp, Dytisc, v. 491, 931. 



Genus AGABUS- 

 Leach, Zool. Misc., iii, 1817, p. 69, 72 : Lacord., Gen. C)l., i, p. 424: Jacq. Duval, 

 Gen. C)l. Eur., i, p. 73 : Mun. Cat., p. 452 : Sharp, Dytisc, p. 493, 876 ; id., Biol. 

 Centr. Amer., Col., i (2), p. 32 : Leconte & Horn, Class. Col., p. 65. 



Acatoies, Thomson, Skand. C)l., i, p. 13, 1859 ; ii, p. 53, 1860. 



Anisomera, Brulle, Hist. Nat. Ins., v. 1835, p. 205 : Lacord., Gen. Col., i, 



p. 421. 

 Arctodytes, Thomson, Opusc Ent,, vi, 1874, p. 541. 

 Dichodytes, Thomson, Bull. Soc. Ent. Fr., (6s.) vi, 1886, p. x. 

 JEriglenus, Thomson, Skand. Col., i, 1859, p. 14 ; ii, p. 55. 

 Gaurodytes, Thomson, I. c. i,p. 14 ; ii, p. 57 : Hult, Ent. Tidskr., 1886, p. 

 90, 125. 



