LESTES 279 
This is a metallic green species with sides of the body yellow. Labrum 
yellowish. Face and top of head blackish. Front of thorax brilliant metallic 
green with black carina. Sides of thorax metallic green above, yellowish beneath 
with an obscure blackish stripe (that becomes pruinose with age) bordering the 
third lateral suture. Legs blackish, lined with yellow externally; tarsi black. 
Abdomen metallic green, becoming black on the third apical segment; the middle 
segments very narrowly ringed with yellowish. Appendages black. 
“Common about stagnant alkaline pools.”’ (Kndy. 715, p. 324.) 
269. Lestes stultus Hagen 
Hag. ’61, p. 67: Mtk. Cat. p. 39: Kndy. 17, p. 484. 
Length 40 mm. Expanse 46 mm. Calif. 
This is a blackish species with yellowish sides. The labrum is pale blue. The 
top of the head is black. The front of the thorax is black except for a narrow pale 
line on the carina. There is a narrow pale stripe bordering the humeral suture 
in front. The sides of the thorax are pale with an irregular blackish line on the 
third lateral suture and isolated spots below it on the inferior margin. Legs 
pale with external black stripes to the knees and internal black stripes on the 
tibiae; tarsi black. Abdomen black above with greenish reflections; yellow at 
sides, less broadly on the terminal segments. Superior appendages black; in- 
feriors pale. 
270. Lestes vigilax Hagen 
Hag. 62, p. 306: Mtk. Cat. p. 40: Whed. ’14, p. 91: Garm. 717, p. 496 and ’27, 
p. 107. 
Length 47 mm. Expanse 54 mm. Mass. and Pa. to N. D. 
This is a fine, metallic green species of medium size. Face is obscure yellow- 
ish, black above. Front of thorax bronzy green with the narrow pale line on 
the carina and another on the humeral suture. Side green above, pale beneath, 
becoming densely pruinose with age. Legs blackish; darker towards the joints 
paler basally. Abdomen bronzy green dorsally, and yellowish at sides; more 
broadly towards the base. Segment 1 pruinose; terminal segments blackish. 
Appendages black-tipped. 
vigilax alacer forficula 
271. Lestes alacer Hagen 
Hag. ’61, p. 67: Mtk. Cat. p. 36. 
Length 39 mm. Expanse 42 mm. Tex., N. Mex. and Ariz. 

stultus 

