CLOE. 53 



1. C. bioculata. 



Cloeon bioculata Walk. Catal. 572, 1. (Complete synonymy.) 



Eyes of the male obscure ; mesothorax yellow ; base and apex of 

 the abdomen obscure; wings hyaline. (From Mr. Walker's de- 

 scription.) 



Length of body 8 millim. Alar expanse 18 millim. Length of 

 setae 11 15 raillim. 



Hab. St. Martin's Falls, Albany River, Hudson's Bay (Barn- 

 ston), Europe. 



Further comparison will be necessary to show whether this be 

 really the European species. 



2. C. tmdata ! 



Cloe undata Pict. Ephem. 264, 10; tab. xli, fig. 6. Walk. Catal. 575, 10. 



Pale luteous ; feet yellowish, apex of the tarsi obscurer ; setae 

 whitish, annulated with black ; wings hyaline, anterior ones with 

 the costal margin fuscous, marked with round, hyaline spots; 

 clouded with fuscous upon the disk and posterior margin. <g 

 Imago. 



Length of body 7 millim. Alar expanse 15 19 millim. Setae 

 10 millim. 



Hab. Mexico; Cuba (Pictet); New York (Calverly). 



I have seen but a single very much mutilated specimen. 



3. C. mollis. 



Cloe mollis Asa Fitch in de Selys Longcliamp's collection. 

 Hab. United States. Unknown to me. 



4. C. posticata. 



Cloeon posticata Say, Godman's Western Quart. Rep. II, 162, 1. 



g Imago. Greenish-white; eyes reddish-brown ; thorax black, 

 opaque; abdomen greenish-blue-hyaline, three apical segments 

 fuscous; setae long, white; feet white, anterior ones obscure at 

 base ; wings hyaline. (From Say's description.) 



Length 8 millim. Length of setae 19 millim. 



Hab. Shippingsport, 21st May. Common (Say). 



