66 NEUROPTERA OF NORTH AMERICA. 



acute ; the pterostigma large, oblong : appendages in the males 

 forcipated. 



1. L. grandis ! 



Lestes grandis Ramb.! Neuropt. 244, 1. 



Brassy-green, mouth reddish-yellow; dorsum of the thorax 

 orange, each side with a brassy-green stripe; sides yellow, superi- 

 orly with a broad brassy-green stripe, inferiorly with a fuscous one; 

 feet yellowish, femora exteriorly, tibise interiorly and tarsi black ; 

 abdomen long, slender, brassy-green, a basal yellow lunule upon 

 each side of the segments ; superior appendages of the male long, 

 semicircular, the apex a little thicker, incurved, an interior stout 

 basal tooth, one obtuse one upon the middle, and an ante-apical 

 oblique tubercle upon them ; inferior appendages short, obtuse, the 

 apex ciliated : valvules of the female yellow, exteriorly broadly 

 black, the apex dentated ; wings hyaline ; pterostigma large, 

 broader in the middle, fuscous; sixteen postcubital cross-nervules. 



Length 59 — 50 millim. Alar expanse 72 — 66 millim. Ptero- 

 stigma 3 millim. 



Hob. Mexico (De Selys ;) Columbia, Venezuela (Appun). 



2. L. rectangularis ! 



Lestes rectangularis Say, Jour. Acad. Philad. VIII, 34, 1. 



Brassy-fuscous, mouth yellow ; dorsum of the thorax brassy- 

 brown, a line upon the middle and each side with a broad stripe, 

 narrowed in front yellow ; sides pale yellow, superiorly a brassy- 

 brown stripe and posteriorly with two linear black spots ; feet 

 yellow, femora exteriorly, tibiae and tarsi interiorly black; abdo- 

 men long, very slender, yellow, the dorsum fuscous, the apex of 

 the segments black, and with an interrupted, yellow, basal lunule; 

 the apical segments entirely blackish-fuscous ; appendages black, 

 the superior ones short, forcipated, the base interiorly dilated, 

 armed with two teeth, the apical one larger, the apex narrow, in- 

 curved ; inferior appendages long, rather slender, approximated, 

 the apex acute, beneath curved ; valvules of the female, with the 

 margin entire; wings hyaline, the costa yellow; pterostigma short, 

 the sides a little oblique, black; ten postcubital cross-nervules. 



Length 53—41 millim. Alar expanse 49 — 41 millim. Ptero- 

 stigma \\ millim. 



