76 NEUROPTERA OF NORTH AMERICA. 



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

 Baron Osten Sacken. 



4. A. tuberculatum. 



Agrion tuber culatum Selys, Poey Ins. Cuba, 467. 



Black-brassy; a round blue point upon each side of the occiput ; 

 posterior lobe of the prothorax produced in the middle ; thorax 

 yellowish-green, in front black-brassy, with two blue stripes; eighth 

 segment of the abdomen blue, the tenth, in the males, tuberculated 

 behind ; wings hyaline, pterostigma rhomboidal, fuscous ; ptero- 

 stigma of the male black within. (From the description of De 

 Selys Longchamps.) 



Length 35 millim. Alar expanse 37 millim. 



ffab. Cuba ; Campeachy ; Cayenne. 



5. A. ramburii ! 



Agrion ramburii Selys, Poey Ins. Cuba, 468. 



Brassy-brown, varied with green and blue ; head eacli side with 

 a green occipital point ; prothorax with the posterior lobe small, 

 having a flat .tubercle upon the middle, in the female broader ; 

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

 vitta ; the sides green, with a medial black stripe at the wings ; 

 feet pale exteriorly, lineated with black ; abdomen brassy-fuscous, 

 the sides green, segments 3 6 with a yellow, medially interrupted, 

 basal band, segments 8 9 blue, with a black stripe each side ; 

 appendages short, superior ones thick, triangular, excavated on 

 the inside ; inferior ones acute, unguiculated ; the last abdominal 

 segment with the posterior margin elevated in the middle and bifid ; 

 wings hyaline, pterostigma small, rhomboidal, in the anterior wings 

 of the male black. 



9 Either thorax reddish-yellow, the dorsum of the thorax with 

 a broad brassy stripe, the whole of the abdominal dorsum brassy- 

 fuscous ; or pruinose, black, with the apex of the abdominal seg- 

 ments also black. 



Length 25 28 millim. Alar expanse 27 30 millim. 



Hob. New York ; Washington ; Dalton, Georgia (Osten 

 Sacken); Philadelphia; Bergen Hill, New Jersey (Griiex.) ; St. 

 Louis. I have not seen the specimens of De Selys; he notes 

 them to be from Martinique ; Campeachy ; Yucatan and Vera 

 Cruz; are they different? I formerly called my species Agrion 

 expertum I 



