54 NEUROPTERA OF NORTH AMERICA. 



5. C. unicolor ! 



Cloe unicolor 



Entirely brassy-brownish ; feet pale luteous ; setae white; wings 

 hyaline. 9. Imago. 



Length of body 4 millim. Alar expanse 10 millim. Seta3 10 

 millira. 



Hab. Washington (Osten Sacken). I have seen a female spe- 

 cimen from Porto-Rico, similar to this, with the thorax fulvo-aene- 

 ous : is it a different species ? 



6. C. pygmaea ! 



Cloe pygmaea Hagen ! 



Body brownish-gray ; feet and setae white ; wings hyaline. 9 

 Imago. 



Length of body 3 millim. Alar expanse 6 millim. 

 Hab. St. Lawrence River, Canada (Osten Sacken). 



7. C. vicina ! 



Cloe vicina Hagen ! 



Whitish-hyaline ; thorax fulvous ; eyes rufous ; abdomen with 

 the three apical segments fuscous above; setae whitish; feet whitish, 

 anterior ones fulvous at the base ; wings hyaline. Male Imago. 



Body yellowish-white ; setae and feet whitish ; wings hyaline. 

 Female Imago. 



Length of body 4 millim. Alar expanse 10 millim. Length of 

 setae, £ 10, 9 6 millim. 



Hab. Washington (Osten Sacken). 



Schioedte, Berlin Ent. Zeit. J. Ill, p. 143, reports Ephemera 

 culiciformis Linn., from Greenland; I have not seen the specimens. 



CAENIS Stephens. 



Setae three ; wings two, transverse veins few ; eyes in the male 

 very simple, remote. 



1. C. hilaris. 



Ephemera hilaris Say, Jour. Acad. Philad. VIII, 43. Walk. Catal. 583, 

 13. 



Small, whitish; eyes black; thorax pale fulvous, beneath and 

 sides with abbreviated obscure lines; apex of the abdomen, each 



