OF WASHINGTON. 65 



Chadisra cacobule, n. sp. 



Head yellowish brown on the vertex, collar dark brown, thorax and 

 abdomen pale gray. Fore wing pale gray, shining; basal space clear 

 gray, subbasal space filled in with dark brown shading, limited by the 

 inner line, which is narrow, black, bent in below cell and outward below 

 vein I, subdislocated on the veins; a median gray line, dentate on the 

 veins, preceded by a gray shade in the cell, in which the yellowish- 

 white discal bar is relieved, bicusged, preceded by two small yellowish- 

 white dots; outer line slender, in part black, in part gray, bent out- 

 ward at vein 4, running inward along vein 3, subdislocated on the 

 veins, flexuous between veins i and submedian fold, the fold and vein 

 3, veins 5 and 7, black and followed by a blackish brown cloud to 

 the subterminal line; subterminal line distinct, black-brown, continuous 

 and straight, curving inward at vein 2 and ending in a double spot; 

 terminal line slender, black, forming angular semicircles between the 

 veins. Hind wing whitish on disk, gray-shaded on the margin, the 

 veins in that part dark; an angular black mark relieved by white above 

 anal angle. Fringe white. Expanse 47 mm. 



One female, Tabernilla, Canal Zone, Panama (A. Busck). 



Type. — No. 11364, U. S. National Mubeum. 



Allied to C. torresi Dognin, but the subterminal line is 

 straight and continuous and the ground color lacks the olive 

 tint. The species is no doubt congeneric with torresi, and will 

 await a male for confirmation of the generic position. 



The genus Blera Walker will, I think, prove to be a synonym 

 of Chadisra Walker. Mr. Schaus separates them by the dif- 

 ference in wing shape, but this is no doubt only a sexual dif- 

 ference, as all the specimens of Blera before me are males 

 except two, and these do not possess the required shape, but 

 would fall into Chadisra, if put through the table without their 

 males. Correspondingly many of the Chadisra before me are 

 females (although in part wrongly described as males), and 

 those of which there are males have the wings more pointed 

 than in females. The difference is scarcely fundamental 

 enough to hold both genera. Moreover, there is considerable 

 dimorphism between the sexes, apparently, and I should not 

 be surprised if Chadisra cacobule, described above, should 

 prove to be the female of Blera arecosa Druce, described from 

 Panama. 



Chadisra (Blera) hymen, n. sp. 



Head, collar, and anterior half of disk of thorax dark brown mixed 

 with ochraceous brown ; patagia and posterior half of thorax silvery 

 gray, mixed with a little brown; basal abdominal tuft gray, abdomen 

 dark brown dorsally except the posterior half which is gray, mixed 



