NORTH AMERICAN SPECIES OF THE GENUS ATAX 199 



occidens, TJ. spatulatus, M. deltoides, M. marginata, A. foot- 

 iana, and A. subcylindracea. 



August, 1895, at Long Lake, Kalamazoo, Mich., 13 speci- 

 mens of TJ. luteolus, TJ. ventricosus and A. footicma. 



August, 1895, at Black Lake, Holland, Mich., 10 specimens 

 of TJ. luteolus and TJ. ventricosus. 



July and August, 1898, from various localities along Grand 

 River, near Grand Rapids, Mich., from the mill-pond at Mill 

 Creek, near Grand Rapids, from Reed's Lake, and from Plas- 

 ter Creek, in the same vicinity, 534 specimens of the species 

 previously enumerated from the same localities, with the 

 addition of TJ. pressus Lea. 



August, 1898, at White Lake, Muskegon county, Mich., 86 

 specimens of TJ. luteolus, A. subgibbosa Anth. ,A. subcylindracea, 

 A. footiana and M. complanata Barnes. 



August, 1897, at Lake Winnebago, Oshkosh, Wis., 21 

 specimens of TJ. gracilis, TJ. luteolus and A. grandis Lea. 



October, 1894, from Blue River, Crete, Neb., 2 TJnio 

 luteolus. 



October, 1894, from pools near Lincoln, Neb., 19 speci- 

 mens of TJ. parvus Barnes, TJ. subrostratus Say, TJ. jamesianus 

 Lea and A. grandis. 



October, 1894, from Platte River, South Bend, Neb., 1 

 A. grandis. 



October, 1894, from Weeping Water Creek, Weeping Water, 

 Neb., about 50 specimens of TJ. subrostratus, TJ. rubiginosus, 

 TJ. undulatus, TJ. jamesianus and M. complanata. 



September, 1895, from the same locality, 24 of the same 

 species. 



September, 1895, from near Lincoln, Neb., 20 TJ. lachry- 

 mosus Lea, A. plana Lea, and A. decora Lea. 



September, 1897, from the Blue River, at Milford, Neb., 

 42 specimens of TJ. lachrymosus TJ. ventricosus, TJ. School- 

 craftii, TJ. anodontoides Lea, M. complanata, A. plana and 

 A. grandis. 



Thus, personally, the author has examined nearly 1,600 



