240 NEUROPTERA OF NORTH AMERICA. 



terior wings with the whole costal margin, and the apex of the 

 posterior wings fuscous. 



Alar expanse 81 millim. Length of the antenna? 18 millim. 



Hab. Honduras ; Columbia (Appun) # . 



7. A. microcerus. 



Byas microcerus Ramb. Neuropt. 362. 



Hab. "West Indies. 



May it not be A. costatus Burm. Handb. II, 1000, 1. ? (Com- 

 pare South American Neuroptera.) 



Fam. IX. PANORPINA. 



Body cylindrical or conical; head exserted; antennae 

 shorter than the wings; mouth rostrated; lateral palpi bi- 

 articulated; prothorax small; wings either almost absent or 

 narrow, equal, longer than the body, narrowed at base; the 

 posterior wings with no anal space ; tarsi of five articles. 



BOREUS Late. 



Ocelli absent ; wings of the males imperfect, of the females 

 hardly present. 



1. B. nivoriundus! 



Boreus nivoriundus Fitch! Winter Ins. Amer. Journ. Agricult. 1847, V, 

 ■ 277, 1 ; Trans. Ent. Soc. ser. 2, I, 96, 1 ; Walk.! Catal. 456, 2. 



Fusco-aeneous ; mouth, wings, feet, and genital organs fulvous; 

 apex of the tarsi fuscous. 

 Length 4 millim. 

 Hab. New York, April (Asa Fitch). 



2. B. brumalis! 



Boreus brumalis Fitch! Winter Ins. Amer. Journ. Agricult. 1847, V, 278, 

 2 ; Trans. Ent. Soc. ser. 2, I, 96, 2 ; Walk.! Catal. 456, 3. 



Entirely brassy-black. 

 Length 3 millim. 



Hab. New York, April (Asa Fitch) ; Washington (Osten 

 Sacken). 



