58 



a. Transverse conjunctiva showing prominent dark brown spines scat- 

 tered over a lighter brown surface, 

 b. Cremaster much longer than broad, not flattened. 



c. With four setae inserted at the caudal end of the cremaster. 

 (1. Dorsum of second abdominal segment showing a slightly crenu- 

 late, chitinized cephalic margin, the cephalic row of spines on 

 this segment not well developed in the males and wanting in 

 females; head never with a cephalic projection; abdomen 

 never with prominent cavities on the dorsum of the second 

 and third segments ; dorsum of abdomen always with darker 



transverse bands and spots of color Harmologa Meyrick. 



dd. Dorsum of second abdominal segment without a crenulate 

 cephalic margin; cephalic row of spines well developed on 

 this segment in both sexes ; head often with a cephalic pro- 

 jection, or if not, then prominent cavities are present on the 

 dorsum of the second and third abdominal segments; body 



of uniform color Arcliips (a) Hubner. 



cc. With two setae inserted at the caudal end of the cremaster. 



Cenopis Zeller. 



bb. Cremaster broader than long, flattened Pliaecasiopliora Grote. 



aa. Transverse conjunctiva never showing prominent dark brown spines, 

 surface of uniform color, 

 b. Cremaster longer than broad, not flattened; labial palpi always 

 considerably more than half the length of the maxillae, 

 c. Cephalic row of spines on second abdominal segment lacking in 

 the female ; cremastral setae noticeably flattened. 



Platynota Clemens, 

 cc. Cephalic row of spines on the second abdominal segment present 

 in the female ; cremastral setae not noticeably flattened. 



Epagoge Hubner. 



bb. Cremaster broader than long, distinctly flattened ; labial palpi not 



more than half the length of the maxillae. .Arcliips (b) Hubner. 



The following species were examined : 



Harmologa fnniiferana Clemens 



Arcliips (a) argyrospila Walker, magnoliana Fernald, parallcla Robin- 

 son, obsoletana Walker, rosaccana Harris 



Arcliips (b) cerasivorana Fitch, fervidana Clemens 



Cenopis chambersana Kearfott 



Phaccasiophora confixana Walker 



Platynota flavedana Clemens 



Epagoge sulfureana Clemens 



Superfamily GRACILARIOIDEA 



This superfamily name is given to a number of families apparently 

 of common origin, which have proceeded along similar lines of devel- 



