AESCHNA 145 
Kennedy (’15) reports it as occurring commonly on streams from 
August until September. He says of it: 
It was in company with A. wmbrosa occidentalis and had apparently identical 
habits, as both patrolled the smaller, more stream-like sloughs, especially where 
they were surrounded by trees. Both seemed to prefer such sunny glades to 
the more open spaces. Inboth species the males were much more abundant than 
the females. 
He adds (’17) 
Several were easily netted, as they flew in short beats among the willow 
thickets to escape the wind. This species in such a situation is very easily 
victimized by the collector. They fly low and slowly and are very bull-headed 
about keeping to their short protected beat, two or three passes with the net 
sometimes failing to drive one away. 
101. Aeschna constricta Say 
Say ’39, p. 11: Mtk. Cat. p. 109: Walk. 712, p. 176: Whed. ’14, p. 95: Howe 
19, p. 49: 723, p. 123: Garm. ’27, p. 189. 
Length 58 mm. Expanse 93 mm. Atl. Coast to Dakotas 
Face yellowish; occiput yellow with black lateral angles; a fine pale line on 
the fronto-clypeal suture; labrum narrowly margined. with black. Thorax 
brownish; lateral pale stripes wide, the first one with a sinuate anterior margin, 
narrowing a little above the middle and the giving off a posterior spur; the second 
broadly widened above by expansion on both margins. Legs black, femora paler 
basally. Abdominal segment 1 with a pale dorsal spot and sometimes with an 
apical annulus; 2 with a lateral pale spot and a large dorsal basal spot extending 
down lateral margins; 3-10 with all spots present. 
Whedon (’14) 
A pair in copulation was captured in an open, pastured woodland..... 
The insects hung quite motionless from the lower branches of oak trees, allowing 
the net to approach them without seeming to heed it. Three females were taken 
on a wooded roadside which skirts Lake Madison, most of them as they clung to 
the underside of trees or leaves, devouring their prey. All of the above females 
were heterochromatic. 
102. Aeschna interrupta Walker 
Walk. ’08, p. 381, 387: ’12, p. 100: Kndy. ’15, p. 336: ’17, p. 581: Howe ’19, 
p. 45: ’23, p. 122. 
Syn: propinqua Scud., Var: nevadensis 
Walk., lineata Walk., interna Walk. 
Length 58 mm. Expanse 95 mm. N. F. to Ont. and Mich. 
Occiput dull yellow. Face yellowish green, paler on sides and top of frons 
and vertex; vertex with a dark margin. A black or dark brown line on front- 
clypeal suture. T spot heavy, sides of stem straight or a little convex. Labrum 
green, margined narrowly above and broadly below with black. Thorax dark 
olive brown. Dorsal thoracic pale stripes reduced to small isolated spots, or 
