3 | 2,010 | 17.2
1955 | 116 | 174 | 2,630 | 22.3
1956 | 122 | 183 | 2,550 | 20.7
1957 | 141 | 84 | 11,700 | 137.0
1958 | 0 | 9 | 6,370 | 213.0
1959 | 0 | 46 | 8,000 | 184.0
------------+---------+-----------+---------+------

_Collection Sites_

The following collections were made by personnel of the State
Biological Survey of Kansas in the 1890's, from 1910 to 1912, and
from 1942 to 1953. These collections, all from Douglas County, are
deposited in the Museum of Natural History, The University of
Kansas. In the annotated list they are designated "KU":

1. Rock Creek, 1898.

2. Washington Creek, 1898.

3. "2-1/2 miles east of Twin Mounds," Rock Creek, Sec. 1, T. 14 S,
R. 17 E, 1899.

4. Rock Creek, 1911.

5. Rock Creek, 1912.

6. Washington Creek, 2-3/4 mi. W and 1 mi. S Lawrence, 1946.

7. Tributary of Yankee Tank Creek, Secs. 4 and 9, T. 13 S, R. 19
E, July 24, 1951.

8. Rock Creek, Sec. 19, T. 13 S, R. 19 E, Aug. 11, 1951.

9. Drainage ditch, tributary to Wakarusa River, Sec. 18, T. 13 S,
R. 20 E, Aug. 24, 1951.

10. Wakarusa River, Sec. 20, T. 13 S, R. 20 E, Aug. 24, 1951.

11. Rock Creek, Sec. 27, T. 13 S, R. 18 E, Sept. 28, 1951.

12. Wakarusa River, Secs. 16 and 17, T. 13 S, R. 20 E, June 21,
1952.

13. Little Wakarusa River, Sec. 18, T. 13 S, R. 21 E, June 21,
1952.

14. Rock Creek, Sec. 33, T. 13 S, R. 18 E, Oct. 2, 1952.

15. Wakarusa River, Sec. 14, T. 13 S, R. 20 E, March 28, 1953.

Several collections made between 1912 and 1948 are deposited in the
University of Michigan Museum of Zoology. In the annotated list
these collections, all from Douglas County, are designated "UMMZ":

1. Rock Creek, June 9, 1912.

2. Oxbow Lake, 6 mi. E Lawrence, 1924 (several dates).

3. Wakarusa River, 7 mi. SE Lawrence, April 9, 1924.

4. Rock Creek, 9 mi. SW Lawrence, April 14, 1924.

5. Rock Creek, 12-1/2 mi. S and 8-1/2 mi. E Topeka, July 4, 1948.

Our collections, all of which were made in 1959, are identified by
the letters DM followed by a station-number. Stations are numbered
consecutively beginning at the mouth of the Wakarusa River and
proceeding up each tributary as it is encountered.

_Description of Stations_