236 NEW YORK STATE MUSEUM ] 



1898Lestes inequalis Davis, N. Y. Ent. Soc. Jour. 6:196 (listed 1 



from Staten Island) 

 1898 Lestes inequalis Kellicott, Odon. Ohio, p.21, fig.22 

 1900 Lestes inequalis Williamson, Dragon Flies Ind. p.260, pi. 7, j 



fig.6 1 



This species is as yet known only from Staten Island, but is 

 very likely to be found elsewhere. Its nymph is unknown. 



Subfamily AGRioMir^Ais 



KEY TO GEXERA 



Imagos 

 a Spines on the tibiae A'ery long, twice as long as 



the intervals between them Argia 



aa Spines of the tibiae hardly longer than the inter- 

 vals between them 

 6 No pale postocular spots on the top of the head; 

 sexes similarly colored 

 c Colors of dorsum blue and black; yellow 



beneath the thorax Chromagrion 



cc Colors of dorsum red and black; stouit species Amphiagrion' 



ccc Dorsum bronzy green; slender species Nehalleunia 



1)1) With round or ovoid postocular spots on the 

 head 

 d Sexes with a general similarity in color, the 

 femaJe often of a lighter shade; no up- 

 turned, bifid process arising from the 

 apex of the 10th abdominal segment 

 (except in the species last in our list); 

 the superior abdominal appendages of 

 the male not strongly directed downward 



and inward Enallagma 



dd Sexes strikingly unlike in color; a bifid pro- 

 cess arising from the apical margin of 

 the 10th abdominal segment in the male 

 and the superior abdominal appendages 

 strongly directed downward and inward 

 e Males chiefly green and black, with nor- 

 mal rhomboidal pterostigma; females 

 with the orange of the abdomen cover- 

 ing something loss than the three basal 

 segments (becoming wholly densely 



pruinose with age) Ischuura 



ee Males yellow or orange, with ovoid 

 stigma which does not reach the costal 

 vein; females with the four basal seg- 

 ments of the abdomen yellow or orange. A nomalagrion 



