WM. G. DIETZ, M.D. 3 



of these — Tecmerium, Auximobasis — do nol occur in our 

 fauna. 



Hypatima Hb., was founded on Chelaria conscriptella Hb., 

 a Gelechid. 



Hypatopa Wish., type CEcophora inunctella Zell., and Cynotes 

 Wish., type iceryceella Riley, were established on vein 5 of 

 hindwing, being feer from stem of 3 + 4. This character is 

 very variable, not only in different specimens of the same 

 species, but even in the wings of the same individual. 



Epigritia Dietz, type pallidotinctella Dietz {ochrocomella 

 Clem.), and Catacrypsis Wish., type micella Wish., differ 

 from Pigritia Clem., and Holcocera Clem., respectively, only 

 in secondary sexual characters. Calinita Busck., type spon- 

 sella Busck., is a synonym of Arotrura Wish. — Scythris Hb. 



Dryope, according to Mr. Karl R. Coolidge,* preoccupied 

 in Diptera and Crustacea, he proposes Dryoperia in its stead. 



To these eight genera I have to add three new ones, 

 making a total of eleven. They fall into two well defined 

 and easily recognizable groups or subfamilies, as follows : 



Labial palpi very small, often minute Pigritiae. 



Labial palpi well developed, long, generally recurved. ..Blastobases. 



Subfamily PIGRITIA. 



Characterized as follows : Labial palpi short, moderate in 

 both sexes {Ploiophora) ; very minute in the male, longer 

 and more distinct in the female {Pigritia, Pseudopigritia) , 

 or else very minute in both sexes {Dryoperia). Antennae 

 not excised above the basal joint. Forewings with veins 

 4+5 stemmed, rarely {Dryoperia) separate. Hindwings 

 with seven veins. 



The four genera belonging here are distinguished as 

 follows : 



1. Veins 4 + 5 of forewing stemmed 2. 



Veins 4 + 5 of forewing free 4. Dryoperia. 



2. Vein 9 of forewing free 3. 



Vein 9 of forewing and of vein 7 3. Pseudopigritia. 



3. Third joint of labial palpi depressed 1. Ploiophora. 



Third joint of labial palpi not depressed 2. Pigritia. 



* Ent. News, Vol. XX, p. 112. 



TRANS. AM. ENT. SOC XXXVI. JANUARY, 1910. 



