RV R. .1. THJ.VARi). 391 



Cordidiiiicw,"* and stated to be "after Martin," is entirelv 

 en-oneous and misleading, both as regards the complete fusion of 

 the arculus-sectors, and the position of the '' break " in the costal 

 side of the forewing-triangle. 8uch conditions as are shewn in 

 this drawing do not, I venture to state, exist in a single specimen 

 of C pygmrra in any collection.] 



In considering the new species, which I propose to name Cor. 

 didephya niontana, we find a further modification necessary. De 

 Selys says " Membranule nulle " for C. pygmrca. But, in C. 

 monfana, there is a small but quite clearly defined membrannle. 

 I, therefore, offer the following amended description of the genus. 

 Basilar, median, and hypei"trigonal spaces free. All triangles 

 free, followed by a single row of post-trigonal cells for at least 

 part of the discoidal area. Costal side of all triangles variable; 

 that of forewings alivays broken, usually close to distal angle; 

 that of hindwings sometimes complete, but more usually broken 

 very close to distal angle. Sectors of arculus variable at their 

 base, usually either Jw^'< separated or just, joined. Basal side of 

 triangle of hindwings placed distally from arculus. Membranule 

 small or obsolete. Anal border of hind wing of male not excavated, 

 oblique, nearly straight, without a cross-nervule across the anal 

 triangle; forming a very obtuse angle with the posterior mai-gin 

 of the wing. Female with no ovipositor. Hindwing of both sexes 

 very narrow at base, possessing a small and exceedingly reduced 

 " anal loop " of from 2-Jf cells only, 9rifh outer margin not strongly 

 developed. 



The addition of the characters in italics is essential. They are, 

 in my opinion, the most important of all for distinguishing this 

 geiuis from all others in the subfamily. 



Type of genus, C. pygmcea Selys. 



The following is a detailed description of the two known species, 

 arranged in tabular form to facilitate comparison. The descrip- 

 tion of C. pygmfBa is taken from my own series, which accounts 

 for the measurements being larger than those given by de Selys: — 



Ann. Ent. Soc. America, i., No.4, Dec, 1908. 



