218 BLACKBURN AND SHARP—On Hawaiian Coleoptera. 
Fam. HYDROPHILIDZ. 
Genus XIV.—Hydrobius. Mun. Cat. u. p. 479. 
65. Hydrophilus semicylindricus, Esch. Ent. p. 41. 
Ins. Hawaii, Maui, Lanai, Oahu, Kaui. (?) Imm. 
Plentiful on all the islands, at various elevations, in both stagnant and running waters. 
Genus XV.—Cyclonotum et Dactylosternum. Mun. Cat. 1. p. 495. 
66. Cyclonotum subquadratum, Fairm. Rey. Zool. 1849, p. 412. 
Ins. Oahu. (?)Imm. orint. Tahiti. 
In decaying vegetable matter, on the mountains; probably not confined to this island. 
67. Sphzeridium abdominale, Fab. Syst. El. 1. p. 94. 
Ins. Oahu, Maui. Int. Widely distributed. 
Rather plentiful in decaying vegetable matter at various elevations, and probably occurs on the other 
islands. 
Genus XVI.—Omicrus. Shp. Trans. Ent. Soc. Lond. 1879, p. 81. 
68. Omicrus brevipes, Shp. 1. c. 
Ins. Oahu. (?) Imm. 
Occurs rarely at various elevations; generally in damp rotting wood. 
Fam. STAPHYLINIDA. 
Tribe ALEOCHARINI. 
Genus XVII.—WStenagria. Shp. Biol. Cent. Am. Col. 1. Pt. 2, p. 287. 
69. Falagria currax, Shp. Trans. Ent. Soc. Lond. 1880, p. 37. 
Ins. Oahu. (?) Int. 
Rare; only taken on one oceasion. It was found under some logs of wood, at Honolulu. 
Genus XVIII.—Bolitochara. Mun. Cat. 1. p. 504. 
70. Bolitochara impacta, Blackb., ante, p. 120. 
Ins. Oahu. (?) Int. 
Wnique: on the shore near Honolulu. 
Genus XIX.—Tachyusa. Mun. Cat. 11. p. 524. 
71. Tachyusa pumila, Shp. Trans. Ent. Soc. Lond. 1880, p. 38. 
Ins. Maui. (?) Imm. 
Two specimens were found on muddy sand, about high-water line, at Kahului bay, in February. 
