Dec., 
1885.] 
HISTORY SOCIETY OF WISCONSIN. 49 
Wis. 
No. 
Amer. 
No. 
HYDEOPORUS, Civ— Continued. 
280. 
1200. 
impressopunctatus, Sell.Same as preceding. 
281. | 
1201. \ 
var. / 
clispar, Lee. 
. Rarer than preceding. 
282. 
1202. 
iurbidus, Lee. 
.Same as preceding. 
283. 
1210. 
nubilis, Lee. 
-Common in pools and small lakes 
in spring. 
284. 
1213. 
granarius, Aube. 
Same as preceding. 
285. 
1217. 
lacustris, Say.. 
.Same as preceding. 
286. 
1220. 
affinis, Say. 
Same as preceding. 
287. 
1225. 
alpinus, Payk. 
-Less common than the preceding. 
288. 
1233. 
grmostriatus, Dej- 
.Like the preceding. 
289. 
1235. 
sericeus , Lee. 
.Very common in pools in spring. 
290. 
1237. 
spurius, Lee. 
.Common with the preceding. 
291. 
1239. 
semirufus, Lee.. 
.Common in ponds in spring. 
292. 
1246. 
modestus , Aube. 
-Same as preceding. 
293. 
1247. 
dichrous, Mels. 
.Less common, mixed with the pre- 
ceding. 
294. 
1262. 
concinnus , Lee. 
.Rarer than most of the preceding 
species. 
HYDRO CA NTIIU S, Say. 
295. 
1267. 
iricolor, Say. 
Very rare. In Lake Michigan. 
CYBISTER, Curt, 
296. 
1273. 
firnbriolatus, Say. 
Common in spring in the lake. 
LACCOPHILUS, Leach. 
297. 
1277. 
maculosus, Germ. 
.Common in rivers and lakes. All 
summer. 
298. 
1279. 
proximus , Say. 
.Less common than the preceding. 
In the same situations. 
AGABETES, Cr. 
299. 
1286. 
acuductus, Plarris. 
Very rare. In Lake Michigan. 
ACILIUS, Leach. 
-Common in spring in the lake and 
300. 
1287. 
semisidcatus, Aube.--- 
in ponds. 
THERMONECTES, 
Esch. 
301. 
1291. 
ornaticollis, Aube. 
.Common in spring in the lake and 
in ponds. 
GRA PTODEKES, Esch. 
302. 
1293. 
driereus, Linn. 
-Same as the preceding. 
303. 
1294. 
liber ns, Say. 
.Same as the preceding. 
HYDATICUS, Leach. 
304. 
1295. 
stagnalis, Fab. 
-Less common than the preceding. 
In similar localities. 
305. 
1296. 
piceus, Lee.. 
-More common than the preceding. 
SCITTOPTERUS, Esch. 
306. 
1298. 
anguslus , Lee. 
.Quite rare. In the Lake. In spring. 
