2 AMERICAN LEPIDOPTERA. 



Face smooth scaled, vertex often with coarsely appressed 

 scales. 



Forewings elongated, pointed, with twelve veins ; cell 

 long, veins 2 to 10 crowded at its end (PI. I, figs. 1, 8; PI. 

 II, figs. 13a, 17c), the latter sometimes a little removed from 

 the angle, veins 7 + 8 stemmed, 7 to costa before the apex, 

 rarely to latter; 4 + 5 stemmed in Pigritiae (except Dryo- 

 peria) , free in Blastobases. Basal membrane thickened be- 

 tween the distal end of vein 11 and the costal margin — the 

 stigma of Zeller. Vein lb furcate at base. 



Hindwings lanceolate to ovate, the costal margin gener- 

 ally refuse from or somewhat before the insertion of vein 8 ; 

 7 or 8 veins. 



Posterior tibiae roughened above with long, coarse hair. 



The pattern of markings of the forewings consists in gen- 

 eral of a patch on both margins at about one-third the wing 

 length, frequently coalescing and forming a fascia, more or 

 less distinct, a spot in the median space before the middle — 

 first discal — and two spots at end of cell, second discals ; 

 more rarely there is a spot on the posterior margin of the 

 cell beyond the middle of wing length ; very rarely ( Calosima) 

 the wing is devoid of all markings. 



The primary stages of a large number of these insects 

 remain thus far unknown, especially is this the case of the 

 subfamily Pigritiae, of which we are entirely in the dark. 

 The larvae of some Blastobases are known to live in seed 

 vessels, while others are predaceous upon Caocids, Aphids, 

 and possibly other larvae. 



In his generic table of genera, published in 1907,* Lord 

 Walsingham enumerates eighteen genera, six of which are 

 foreign to our fauna. Of the remaining twelve, Endrosis 

 has properly been referred to the CEcophoridae. Of the 

 other eleven, four {Epigritia, Catacrypris, Cynotes, Hypatopa, 

 syn. Hypatima) , being based on secondary sexual characters 

 or the relation of vein 5 to 3 + 4 of hindwing, become invalid. 

 Thus in his latest revision, published in February of the 

 present year,* we only find enumerated ten genera. Two 



* Op. cit. 



