214 NEUROrTERA OF NORTH AMERICA. 



a black ring; between the antennae is a black Y; a series of semi- 

 lunar streaks at the base of the antennas, a quadrangular spot 

 before and a streak upon the sides of the cheeks, black ; occiput 

 with four black points in a transverse series ; prothorax with four 

 quadrangular black spots, mesothorax with two, and a spot at the 

 bases of the anterior wings, black ; abdomen obscure green, the 

 segments with two dorsal, medial, fuscous points ; wings hyaline, 

 transverse veins black, green on the middle. 



Length to tip of wings 16 millim. Alar expanse 29 millim. 



Hah. New York, May, June (Asa Fitch) ; Washington (Osten 

 Sacken). 



At first sight it resembles the preceding; is it different? 



10. Ch. latipennis ! 



Chrysopa latipennis Schneid. Monog. Chrys. 118, 34, tab. xl; Walk. Ca- 

 tal. 259, 54. — Chrysopa bipunctata Fitch, Report I, 87. 



Yellowish-green ; apex of the antennae obscurer, the second 

 article with a black ring ; face at the base of the antennae with a 

 semilunar, short streak, a streak at the sides of the cheeks, and a 

 point anteriorly, black; occiput with two black points; thorax and 

 abdomen green, one-colored ; wings broader, the apex rounded, 

 transverse veins of the costal space black at their bases, black all 

 over in the posterior wings. 



Length to tip of wings 19 millim. Alar expanse 34 millim. 



Hob. Pennsylvania (Zimmerman) ; St. Martin's Falls, Albany 

 River, Hudson's Bay (Barnston) ; New York, June (Asa Fitch). 



f f Second article of the antennae of the same color 



as the rest. 

 * Antennae partly black. 



11. Ch. nigricornis ! 



Chrysopa nigricornis Burm. Handb. II, 980, 6 ; Schneid.! Monog. Chrysop. 

 126, 37, tab. xliii; Walk. Catal. 259, bO.— Chiysopa colon Fitch, 

 Report I, 88. 



Pale yellow ; antennae yellowish, black at base, the first article 

 whitish ; face with a black streak at sides upon the cheeks ; pro- 

 thorax each side anteriorly with a black point ; body pale yellow; 

 wings hyaline, transverse costal veins, gradate veins entirely and 

 the second sector at base, black. 



