222 



CONNECTICUT GEOL, AND NAT. HIST. SURVEY. [Bull. 



Colymbetes Clairville. 



sculptilis Harris. Coleop. Ind., 229. 



Dytiscus Linnaeus. 



fasciventris Say. Coleop. Ind., 231. 

 harrisii Kirby. Ibid., 231. 

 hybridus Aube. Ibid., 231. (C.C.) 

 verticalis Say. Ibid., 231. 



Hydaticus Leach. 



piceus LeConte. Coleop. Ind., 232. 

 stagnalis Fabricius. Ibid., 232. 



Acilius Leach, 

 fraternus Harris. Coleop. Ind., 234. 

 mediatus Say. Ibid., 233. 

 semisulcatus Aube. Ibid., 233. 



Thermonectes Eschscholtz. 

 ornaticollis Aube. Coleop. Ind., 234. (C.C.) 



Graphoderes Eschscholtz. 

 fasciatocollis Harris, cinereus. Coleop. Ind., 235. 

 liberus Say. Ibid., 235. (C.C.) 



Family GYRINID^. 

 Gyrinus Linnaeus. 

 borealis Aube. Coleop. Ind., 240. 

 limbatus Say. Ibid., 239. 

 lugens LeConte. Ibid., 240. 

 ventralis Kirby. Ibid., 239. 



sp. 



Dineutes MacLeay. 



assimilis Aube. Coleop. Ind., 242. 



discolor Aube. Ibid., 241. 



emarginatus Say. Ibid., 241. (H.L.J.) 



hornii Roberts. Ibid., 242. 



nigrior Roberts. Trans. Am. Ent. Soc, xxii, 284. 



vittatus Germar. Coleop. Ind., 241. 



