10-G: Riley Co., Mill Creek, Sec. 2, T. 9S, R. 6E, Aug. 13, 1957.

11-G: Pottawatomie Co., Carnahan Creek, Sec. 22, 27, and 34, T. 8S, R. 7E, Aug. 1, 1957; and July 8, 1958.

12-G: Pottawatomie Co., unnamed tributary to Carnahan Creek, Sec. 15, T. 8S, R. 7E, Mar. 19, 1956 (collection made before my formal study was begun).

13-G: Pottawatomie Co., Carnahan Creek, Sec. 36, T. 7S, R. 7E, Aug. 13, 1957.

14-S: Riley Co., Big Blue River, Sec. 18, T. 8S, R. 7E, Mar. 22, 1958.

15-S: Riley Co., Big Blue River, Sec. 7, T. 8S, R. 7E, Apr. 3, and June 12, 1958.

16-G: Riley Co., unnamed creek, Sec. 1, T. 8S, R. 6E, July 10, and Aug. 5, 1958.

17-G: Riley Co., unnamed creek, Sec. 10, T. 8S, R. 6E, June 26, 1958.

18-G: Riley Co., Fancy Creek, Sec. 14, T. 7S, R. 6E, July 29, 1957.

19-G: Riley Co., Walnut Creek, Sec. 20, T. 7S, R. 6E, June 26, 1958.