184 lUiiio'is State Lahor<itorii of Natural H'lstorj/. 



]). rc'uihardi Marsh has been recorded only from New 

 Lisbon, AVisconsm. 



T). Dirssisslppiensts Marsh is common in Mississippi, and 

 has been found in Fk^rida in connection withZ). alhuqiicrqiioi- 

 sis Herrick. 



D. tiiryeUi Poppewas described by the author of the species 

 from Summit Lake, and by Lilljeborg, under the name 7). 

 fresnauns, from Fresno, near Centreville, CaL 



I). (iarijH's n, sp. is described in this paper from West 

 Okoboji Lake, Iowa. 



