HEMEROBIUS. 201 



Hob. New York; Illinois; May to October (Asa Fitch). On 

 peach trees and wild shrubs. 



3. H. occidentalis. 



Hemerobius occidentalis Asa Fitch, Report I, 95. 



Blackish; antennae shorter than the body, black; feet pale; wings 

 hyaline, the areoles with two obscure parallel lines; margin obscure; 

 veins stout, black, transverse veins almost as in the preceding spe- 

 cies. (From the description of Dr. Fitch.) 



Length to tip of wings 5 ? millim. Alar expanse 8 millim. 



Hob. Henderson River, Illinois; October (Asa Fitch). (Wash- 

 ington, June. The antennae of this specimen, ?, are longer than 

 the body, and their basal third only, black, the remainder pale. 

 Osten Sacken.) 



Schioedte Berlin, Ent. Zeit. Ill, p. 143, reports Hemerobius 

 olscurus Zett. Ins. Lapp. 1063, 12, from Greenland; I have not 

 seen the specimens, nor is that species known to me. 



4. H. delicatulus. 



Hemerobius delicatulus Fitch, Report I, 96. 



Obscure yellow ; antennas longer than the body, fuscous ; feet 

 pale ; wings hyaline, veins fuscous, pointed obscurely ; single gra- 

 date series banded with fuscous. (From the description of Dr. 

 Fitch.) 



Length to tip of wings 6? millim. Alar expanse 10 millim. 



Hob. Illinois; October (Asa Fitch), 

 f f f Three sectors. 



5. H. alternatus. 



Hemerobius alternatus Fitch, Report I, 93. 



White or yellowish; varied with fuscous, with fulvous pile; head 

 in front and thorax each side with a blackish-fuscous stripe; abdo- 

 men whitish, each side with a longitudinal white stripe, which is 

 margined above with a series of brown points, and below by a 

 brown line ; wings hyaline, iridescent, veins interrupted black and 

 white; gradate series black, stout, marked with fuliginous; poste- 

 rior wings pale, sparingly marked with black. (From the descrip- 

 tion of Dr. Fitch.) 



Length to tip of wings 11? millim. Alar expanse 20 millim. 



Hob. New York ; June (Asa Fitch). Upon pine and hemlock 

 bushes. 



