LYMNZIDZ OF NORTH AMERICA. 219 
the cubensis group. As in the case of techella, future investigation will 
doubtless add much information concerning the range of this race. 
At present it is known to occupy the drainage areas of three great 
river systems—the. Mississippi, the Rio Grande and the Colorado. 
RECORDS. 
UNITED STATES. 
Arizona: Holbrook, Navajo Co. (Ashmun); Midway between the Chiri- 
cahua and Peloncillo ranges (Pilsbry). 
CALIFORNIA: Bardsdale, Ventura Co. (Berry); in lake, 25 miles west of 
Susanville, Lassen Co. (Hannibal); near Daggett, Mojave River, San Ber- 

Distribution 
Paes 
1 COCKERELLI 


nardino Co. (Smith. Coll.) ; San Diego, San Diego Co. (Newberry) ; Bixby, Los 
Angeles Co. (Hemphill; Walker). 
CoLtorapo: Fossil Ridge, six miles south of Ft. Collins, Larimer Co. (Hen- 
derson); Florence, Fremont Co. (Henderson; A. Kenyon); Lake, San Luis 
Valley, Costilla Co. (Ingersoll) ; pool, southeast of Denver, Arapahoe Co. (J. D. 
Putnam). 
Montana: Missouri River above the Falls (Bland & Cooper); Mingus- 
ville, Dawson Co.; spring, five miles south of Wilbaux, Dawson Co. (Squyer). 
NEBRASKA: Ogallaia, Keith Co. (Ferriss; Simpson). 
NeEvApA: Quinn River crossing, Humboldt Co., alt. 4100 ft. (Berry; C. H. 
Richardson, Jr.). 
New Mexico: Gallup, Bernalillo Co. (Ashmun) ; Chaco Canyon, alt. 6500 
feet, San Juan Co. (Geo. H. Clapp; Geo. H. Pepper) ; Farmington, San Juan Co. 
