DISMORP1IIA. 183 



above, below, and on the hind-margin ; the costa is pale yellow, 

 and the lower border rusty-brown. It is a native of Brazil. 

 We have figured the following species of this genus : 



DISMORPHIA EGAENA.* 



(Plate LV. Fig. 3.) 



Leptalis egaena, Bates, Journ. Ent. i. p. 230, no. 2 (1861); id. 

 Trans. Linn. Soc. Lond. xxiii. p. 566, pi. 57, fig. 7 

 (1862). 



This species was brought by the late Mr. Bates from Ega, 

 on the river Ega or Tefie, a tributary of the Upper Amazon. 

 It is remarkable for the close resemblance of the female to 

 Mechanitis egaensis, Bates, a Butterfly found in the same 

 locality. JD. egaena measures from 2 to 2^ inches across the 

 wings, which are long and narrow, except the hind-wings in the 

 male. The fore-wings are black, with red longitudinal streaks 

 towards the base, a large black discoidal spot, bordered within 

 with red, and outwardly by the first of two oblique bands of 

 yellow spots ; the hind-wings are dull black, streaked with red 

 on both sides of the median nervure and its branches in the 

 female, but in the male only below it. In the male, the wing 

 is light brown above the median nervure, and marked with a 

 very large white space, extending to the costa, but not to the 

 hind-margin. 



The type of Acmetopteron, Godman and Salvin, is A. 

 nemesis (Latreille), a common species from Mexico to Bolivia 

 and Venezuela, which measures from 2 to 2^/2. inches across 

 the wings. The fore-wings are longer than the hind-wings, 

 and are drawn out into a sharp point ; the hind-wings 

 are nearly rectangular in the female. In the male, the fore- 

 wings are black, with the nervures yellowish at the base, and 

 two oblique rows of greenish-yellow spots on the disc. The 



* D. egaensis on plate, 



