146 DRAGONFLIES OF NORTH AMERICA 
wanting. Lateral pale stripes either straight and very slender or divided into 
an upper and lower spot. Abdominal spots well developed. 
103. Aeschna clepsydra Say 
The Time-keeper 
Say ’39, p. 19: Mtk. Cat. p. 109: Walk. 712, p. 129: Howe ’19, p. 45: ’23 p. 124: 
Garm. ’27 p. 184. 
Length 65 mm. Expanse 94 mm. Ont. and N. E. to Ind. 
Face brownish green with a heavy dark line on the fronto-clypeal suture 
usually not reaching the margin; occiput yellow. Anteclypeus darker. Labrum 
bordered below with black. Readily distinguished by the large pale spots be- 
tween the wide lateral thoracic pale stripes; these are sometimes confluent with 
sinuate stripe 1. Abdominal segments 1 and 2 (often 3 and 4) with large pale 
spots. Dorsum of 10 yellow with median posteriorly pointing black triangles. 
Legs brown, paler externally. Wings hyaline, stigma and costa tawny. 
Muttkowski (’08) reports this species as being common in the woods 
and about the lakes of Wisconsin from June to Sept. Walker (’12) 
observed it at Go Home Bay flying over shallow reed-grown bays and 
adjacent marshes, and on one occasion took two specimens from tree 
trunks on the edge of a wood, about half a mile from the nearest pos- 
sible breeding place. 
104. Aeschna eremita Scudder 
The Hermit . 
Scud. ’66, p. 2138: Mtk. Cat. p. 110: Walk. ’12, p. 119, 42: Howe ’19, p. 46: 
"23, p. 122. 
Syn: hudsonica Selys. 
Length 65 mm. Expanse 100 mm. Labr., N. H. to Alaska and Wyo. 
clevsydra 
interrupta 

A large dark species. Face greenish with a dark stripe on the fronto-clypeal 
suture and on the upper and lower margin of the labrum, that of the upper margin 
running down into a median dark spot; clypeus brownish. Occiput yellow with 
black lateral angles. Dorsal thoracic pale stripe narrow, sometimes separated 
from a pale spot above. Lateral stripe 1 strongly constricted in the middle. 
Stripe 2 also very much constricted in the middle and much widened dorsally. 
One or more pale stripes between the two lateral stripes. Wings hyaline costa 
yellow, stigma brown. 
