141 
Genus DERONECTES. 
Sharp, Dytisc., p. 418, 865 ; id., Biol. Centr. Amer., Col., i (2), p. 26 : Leconte & 
Horn, Class. Col., p. 64. 
grlseostrlatus (Dytiscus), Degeer, Ins., i v, 1774, p. 103 : Sturm, Ins., ix, p. 21, 
t. 204,1 a. A. : An bo, Dejean Spec., vi, p. 541 : Sharp, Dytisc., p. 434. 
cataxcopiun (Hydroporus), Say, Trans. Am. Phil. S. Philad., ii, 1825, 
p. 103. 
interruptus (Hydroporus), Say, l.c., iv. 1834, p. 415. 
parallelus ( Hydroporus ), Say, Journ. Ac. N. S. Philad., iii, 1832, p. 153. 
halensis (Dytiscus), Paykull, Faun. Suec., i, 1798, p. 230. 
iniadrutriatus (Hyphidrns), Kschscholtz, Mem. Mosc., vi, 1823, p. 107. 
1 var. Piochardii, ltegimb., Ann. Soc. Ent, Fi\, (5s.) vii, 1877, p. 350 : Sharp, 
Dytisc. p. 806. 
Hab. Alps, Pyrenees, W. Europe, Arctic Asia, Pankong Valley, N. \V. 
Himalaya: W. America, Lake Superior [ Ind. Mus., Pankong Valley]. 
indlcus, Sharp, DytiBC., p. 431. 
Hab. N. India. 
Genua HYDROPORUS. 
Clairville, Ent. Helv., ii, 1806, p. 182 : Aube, Dejean Spec., vi, p. 468 : Lacord., Gen- 
Col., i, p. 415 : Mun. Cat., p. 429, pt : Sharp, Dytisc., p. 435, 868 j id., Biol. Centr. 
Amer., Col., i (2), p. 28 : Leconte & Horn, Class. Col., p. 64. 
Graptodytes , Seidlitz, Bestimm. Lab. Dytisc., in Verh. Ver. Brunn, xxv, 
1887, p. 57. 
Oreodytes, Seidlitz, l. c., p. 57. 
Tola, Gozis, Eecherche, i, 1886, p. 8. 
Also perhaps includes Bidessus and Deronectes, Sharp as subgenera. 
aberrans, Clark, Trans. Ent. S. Lond., (3s.) i, 1863, p. 426 : Sharp, Dytisc., p. 786 
(gen dub.). 
Hab. Java. 
quadricostatus, Aubb, Dejean Spec., vi, 1838, p. 487. (gen . dub.). 
Hab. Bombay. 
C0LYMBETINI, Sharp, Dytisc., p. 490 : Leconte & Horn, Class. Col., 1883, p. 65. 
Agablnl, Sharp, Dytisc., p. 491, 931. 
Genus AGABUS- 
Leach, Zool. Misc., iii, 1817, p. 69, 72 : Lacord., Gen. Col., i, p. 424: Jacq. Duval, 
Gen. Col. Eur., i, p. 73 : Mun. Cat., p. 452 ; Sharp, Dytisc, p. 493, 876 ; id., Biol. 
Centr. Amer., Col., i (2), p. 32 : Leooute & Horn, Class. Col., p. 65. 
Acatodes, Thomson, Skand. Col., i, p. 13, 1859 ; ii, p. 53, 1860. 
Anisomera , Brullb, 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. 
Eriglenus, Thomson, Skand. Col., i, 1859, p. 14 ; ii, p. 55. 
Gaurodytes, Thomson, l.c. i,p. 14; ii, p. 57 :Hult, Ent. Tidskr., 1886, p. 
90, 125. 
