152 NATHAN BANKS. 



cons at base; the first article yellow, with the apex above, red ; prothorax broad, 

 obliquely truncated in front; anterior margin black; wings hyaline, narrow, 

 pterostigma yellow, interiorly with a red spot; transverse veins of the anterior 

 wings almost all blackish-fuscous; gradate veins ~> and 5. Length to tip of 

 wings 13 mill." (Hagen.) 



I have not seen this species, and copy Hagen's description above. 

 It was described from Mexico, but Hagen, in Wheeler's Report, 100 

 meridian, records a specimen from Arizona. I have not included it 

 in the table ; it belongs to the Ch. nigricornis group, and appears to 

 be very distinct from any of our other species. 



Chrysopa rufilabris Barm. — Face yellowish or greenish, a red stripe 

 under each eye to mouth ; antennae pale yellow ; thorax and abdomen green, with 

 a pale yellow median stripe ; legs yellowish. Wings with green veins ; the gradate 

 veins black, and also the ends of some other cross-veins. In some specimens nearly 

 all of the cross-veins are more or less black. There is considerable variation in 

 the shape of the wings, some specimens (chiefly from the North) have broader 

 wings, and tips rounded : while southern specimens have narrow wings with 

 acute tips. The divisory veinlet of the third cubital cell usually ends just beyond 

 the cross-veinlet ; in specimens from the extreme South (Louisiana and Florida) 

 it ends directly in the cross-veinlet. This form may be the C. attenuata of Walker. 

 Specimens occur, however, with the divisory veinlet ending before the cross- 

 veinlet. Length 12 to 15 mm. 



Specimens have been seen from Ithaca and Sea Cliff, New York ; 

 Washington, D. C. ; Falls Church, Va. ; New Brunswick, New Jer- 

 sey ; Medina, Ohio; Agricultural College, Mich.; Shreveport, La.; 

 Kissimmee and Biscayne Bay, Fla. Hagen records it from Georgia. 

 It is thus evidently spread throughout the entire eastern part of the 

 country. It occurs from June till October, on various trees, shrubs 

 and low plants. In life it is grass-green, with a pale yellow stripe 

 from vertex to apex of abdomen. It has a distinct fetid odor. It 

 Hies freely at twilight, and has been taken at lights. The life his- 

 tory was described by Fitch. The eggs are laid singly, not in groups. 

 The larvse are white, with dark stripes on the head. They carry 

 some debris on the body, which often conceals the insects. The 

 cocoon is snow-white. 



Chrysopa interrupts Schneider.— Pale straw yellow throughout; a 

 reddish mark from each eye to the mouth. The gradate series wholly, and most 

 of the other cross-veinlets of fore wings brown, in hind wings but few cross- 

 veinlets other than the costals marked with brown ; pterostigma not very dis- 

 tinct. Antenna quite short; pronotum slender, longer than broad, narrowed in 

 front. Wings slender, acute at tips, divisory veinlet of third cubital ends beyond 

 the cross-veinlet. Length 12-13 mm. 



