OF WASHINGTON. 303 



(exstriata Culvert), but is larger, possesses an antehumeral 

 stripe, is without black markings on 8 and 9, the appendages are 

 stouter and are longer in proportion to the length of the last 

 segment, while the inferior process of the superiors is shorter. 

 The inner prolongation of the inferior appendages seems to be a 

 peculiarity of this species. 



Progomphus obscurus (Rambur). 



Bright Angel, Colorado Canyon, 2,700 feet, July 12 (i cT). 



Ophiogomphus severus Hagen. 



Las Vegas Hot Springs, New Mexico, August 3 (i cT) 



I had first determined this, from the description and figure, as 



O. occidentis, but Dr. Calvert, when I was in Philadelphia last 



winter, corrected the determination and showed me types of both 



species for comparison. 



Herpetogomphus compositus (Hagen). 



Bright Angel, Colorado Canyon, 2,700 feet, July 12 (i c?), 

 July 13 (2 r?d\ 2 9 9) ; Bright Angel [Hotel], July 10 (i 9) ; 

 Bright Angel, 6,Soo feet, July 13 (i c?). 



Cordulegaster diadema (Selys). 



Bright Angel, Colorado Canyon, 2700 feet, July 13, in stream 

 in "Willows" (i teneral 9). 



A cast skin, probably of this species, was taken on a rock near 

 the place where the imago was captured. I think the species has 

 not previously been recorded from the United States. 



./Eschna multicolor Hagen. 



Winslow, July 3: (i c?) ; Williams, July (i cf fragment five 

 terminal abdominal segments and appendages). 



Anax junius (Drury). 



W r inslow, July 31 (i d\ i pair in copula). 



Pantala hymensea (Say). 



Hot Springs, June 25, "laying eggs in fountain" (i 9). 



Libellula saturata Uhler. 



Williams, June 3 (i cf), June 15 (i c?), July (2 J^) ; Hot 

 Springs, June 23 (i c?) 5 Bright Angel, Colorado Canyon, 2,700 

 feet, July 12 (i 9), July 13 (2 c?c?, i 9). 



Sympetrum corruptum (Hagen). 



Williams, June i (6 dV), June 2 (2 cJVT), June 5(1 9), June 

 6 (3 ^cf), June 30 (i r?), July 3 (2 cW), July 16 (i 9) ; Flag 

 staff, July 4 (i c?) ; Ashfork, June 18 ( i 9 ) ; Bright Angel [Hotel] , 

 July ii (2 99) ; Bright Angel, Colorado Canyon, 2,700 feet, 

 July 12 (i 9; ; Winslow', July 31 (5 cTcf, 2 99). 



Mesothemis simplicicollis (Say), variety collocata Hagen. 

 Winslow, July 31 (i cf). 



