408 ACADEMY OF NATURAL SCIENCES 



greenisli at tip; beneath, a black vitta, and segments blackish be- 

 hind ; forceps curved inward, bidentate beneath ; inferior pro- 

 cesses conic, less than half as long as the forceps; feet black; 

 thighs whitish beneath; tibiae with a white line on the exterior 

 side. 



Length one inch and nine-tenths. [37] 



The body is much shorter, and the wings longer than the 



rectangular &., vfhieh. it resembles; the inferior anal processes 



also are shorter, and the superior pair not decurved so much. 



From Dr. Harris. 



AGRION. 



1. A. VERTICALTS. — Head green, blackish above; occiput 

 with a bluish spot on each side. 

 Inhabits Indiana. 



'^ Body above dark bluish, somewhat glaucous, with an obso' 

 lete brassy reflection ; head light green ; above and behind black, 

 with an obsolete brassy reflection; frontal projection black above, 

 sometimes connected by this color with the color of the vertex ; 

 eyes bright yellow green, fuscous on the superior surface ; occi- 

 put with a dilated pearlaceous blue or glaucous spot each side; 

 hairs numerous and rather long ; thorax with numerous, rather 

 long hairs; a brassy vitta and lateral black lines ; wings hyaline; 

 cellules chiefly quadrangular ; stigma short, rhomboidal, brown- 

 ish ; tergum slightly pruinose, tips of the segments a little darker, 

 and extreme base of the segments with an obsolete yellowish 

 band ; terminal segments a little darker and slightly iridescent ; 

 venter pale green or gray, with a black line'; pectus and pleura 

 greenish ; feet greenish ; thighs black above ; tibiae with a black 

 line on the exterior side. 

 Length one inch. 



9 Body of a darker color than that of the male ; the eyes are 

 black above ; the occipital spots are [38] small and orbicular ; the 

 tergum is brassy-green, with a very narrow, white, interrupted 

 band at base of each segment; two ultimate segments bright 

 pearly blue ; anal segment on the superior tip with an emar- 

 ginate, slight elevation. 

 Length one inch. 



[Vol. VIII. 



