Lepidoptera of the Amazons. 57 



83. Mfenolenenra anomala, n. sp. 



Fuliginous brown, primaries crossed (from basal fourth) 

 by four zigzag dusky bars, most distinct on inner margin ; 

 secondaries darkest at outer margin ; margins of eyes and 

 sides of collar, orange ; abdomen black, ochreous at the 

 sides, with dentated margin ; under surface uniform rosy 

 brown ; the bases and internal borders of the wings paler : 

 expanse 1 inch 4 lines. 



^ .Gepatiny, Rio Purus, 2 9th September, 1874 ; $ . Araras, 

 loth November. 



Lygrotes, n. gen. 



Somewhat the aspect of the preceding genus, but the 

 wings narrower; the first three subcostal branches parallel 

 and close together ; the two first emitted before the end of 

 the cell; the third at the end forking halfway between the 

 cell and apex, and emitting the upper radial from below a 

 short distance beyond the cell ; lower radial and median 

 branches normal ; discocellulars transverse and slightly 

 concave ; subcostal of secondaries forking beyond the cell; 

 discocellulars concave, radial normal ; second and third 

 median branches emitted from the inferior extremity of 

 the cell ; antennae simple. Type, L. arctipennis. 



84. Lygrotes arctipennis, n. sp. 



Above silky fuliginous ; discocellulars of primaries black ; 

 median veins and apical half of costa spotted Avith black ; 

 fi-inge of secondaries pale : expanse 1 inch 3 lines. 



Caverns near entrance to Lago Macaco, 10th Sep- 

 tember, 1874. 



RoESELTA, Huhner. 



85. Roeselia antennata, n. sp. 



Allied to R. strigula, general aspect of R. agijptiaca; 

 Avings above sordid white ; primaries with two central 

 dark brown lines, the inner one C-shaped, the outer one 

 Avidely festooned and spotted Avith black, three costal 

 brown spots, the second of Avhich unites with the 

 C-shaped line, the third triangular, largest of the three, 

 covering the discocellulars, it and the two lines Avhite- 

 edged externally; radial and median branches streaked 

 Avith black almost to the spots of the outer line ; a sub- 

 marginal series of Avhite-bordered pale broAvn spots ; secon- 

 daries with pale brown veins ; thorax Avhite, the collar 



