42 HENRY SKINNER, EDITOR. 



Jlelanoplus bivittatus (Say). 



Ten specimens, three males, five females, two immature speci- 

 mens; August 17, 1901; Denver, Colorado, August 26, 1901. 



TETTIGONIDjE. 

 Scudderia furcata Brunner. 



One male; August 17, 1901. 



Orchelimum sp. 



Three specimens, one male, two females; August 17, 1901. 



Ceuthophilus uniform is Scudder. 



Two males; August 17, 1901. 



Previous records from this general region : Plains of Northern 

 New Mexico (eastern slope), Beaver Brook, Colorado (6,000 feet), 

 and Manitou, Colorado (6,300 feet). 



Additional Orthoptera determined by S. H. Scudder and collected 

 by T. D. A. Cockerell, W. P. Cockerell and M. D. Cockerell. 



Melanoplus cockerelli. C. 



bruneri. C. 



gillettei. W. P. C. 



Ceuthophilus valgus. C. 



Bucillis coloradus. W. P. C. 



Anabms coloradus. W. P. C. 



Melanoplus bivittatus. M. D. C. . ' , 



BfEUROPTERA- Odouata. 



BY P. P. CALVERT. 

 Argia sp. (new?) 



1 9 , allied to moesta Hag. and violucea Hag. 



Li«*stes disjunctus Selys. 



4 £ , 2 9 . Ranges from Nova Scotia to Washington, and in the 

 West south through Colorado. 



Enallagnia calverti Morse. 



6 $ . A male was taken by Prof. Cockerell at Top Range, N. 

 Mex., 11,000 feet, on June 29. This species is known from Maine, 

 Massachusetts and Indiana in the East. In the West it ranges 

 from Alaska and Washington to New Mexico. 



