AGRION. 77 



6. A. positum ! 



Agrion positum Hagen ! 



Brassy-fuscous, varied with green ; head brassy-fuscous, each 

 side with an occipital point green (<), or blue (?); prothorax 

 with the posterior lobe small, rounded and produced in the middle, 

 dorsum of the thorax brassy-brown, each side anteriorly with a 

 stripe and at the wings a point (forming an 1 sign) green, sides 

 yellowish-green, with a black line upon the middle; feet yellowish, 

 the femora, and the tibiae exteriorly black ; abdomen brassy-fuscous, 

 sides yellowish-green, the brassy-fuscous color is dilated before the 

 apex of the segments ; the incisures black, the first green ; seg- 

 ments 3 7 with a basal yellow lunule ; the dorsum of the last 

 segment has, sometimes, a blue pruinose, quadrangular spot, the 

 posterior margin of this segment is elevated in the middle, and 

 bifid ; appendages short, yellow, the superior ones tuberculose 

 inflated, a small tooth, exteriorly, upon the middle, the inferior 

 ones flat, recurved, with the apex black, serrated ; the tenth seg- 

 ment in the female, with the hind margin yellow, entire ; no ventral 

 spine ; the appendages short, trigonal, approximated, yellow ; 

 wings hyaline, pterostigma small, rhomboidal, fuscous, surrounded 

 with pale. 7 9 postcubital cross-nervules. 



Length 24 28 millirn. Alar expanse 23 34 millim. 



Hab. Savannah, Dalton, Georgia ; Washington (Osten Sacken). 



The colors of the living insect were made known to me by Baron 

 Osten Sacken. The male (from Dalton) is sometimes smaller, 

 having 5 postcubital cross-nervules ; but it can hardly be a dis- 

 tinct species. The adult female is black, pruinose, with the apex 

 of the segments black-brassy. 



7. A. hastatum ! 



Agrion hastata Say, Journ. Acad. Philad. VIII, 38, 2. Selys ! Poey Ins. 

 Cuba, 470 (subg. ANOMALAGRION). Agrion anomalum Ramb.! Neu- 

 ropt. 2S1, 31. Agrion venerinotatum Haldernan, Proc. Acad. Philad. 

 1844, 55. 



Brassy-green, varied with orange and yellow ; head brassy- 

 green in front, and an occipital point each side orange ; prothorax 

 witn the posterior lobe somewhat produced in the middle ; dorsum 

 of the thorax brassy-green, each side with a narrow yellow stripe, 

 sides yellow, superiorly brassy-green, inferiorly a black stripe at 

 the wings ; feet yellow, apex of the femora with a black stripe 



