176 DRAGONFLIES OF NORTH AMERICA 
scends to touch the water at points wide apart, far out from shore in 
open water. 

Fig. 34. Epicordulia nymph. 


Nymphs 
Species Length | H. fem. Width of Spine of 9 Described by 
abdomen 
princeps 23 8 10 mm. | nearly twice as Ndm. 01, p. 488 
long as segment 
regina 28 10 13 mm. | equals 9 Brtn. ’28, p. 33 
The genus is indigenous to the eastern United States and includes 
two species distinguishable as follows: 
KEY TO THE SPECIES 
1 Expanse of wings 80 mm.; spots of wings light brown covering a 
fourth or less of the wing area............... princeps, p. 176 
Expanse 100 mm.; spots dark brown covering one half or more of 
chewinpe ares 422A ent ee yee ee ek sR a regina, p. 177 
136. Epicordulia princeps Hagen 
Hag. ’61, p. 184: Mtk. Cat. p. 122: Howe ’19, p. 55: Garm. ’27, p. 207: Bromley, 
28, p. 69. 
Length 56 mm. Expanse 80 mm. Me. to N. D. and Tex. 
A fine large strong-flying species with long abdomen and conspicuously 
spotted wings. The face vertex and occiput are pale olivaceous. The thorax is 
