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EPIDESM1A TRICOLOR, Westwood. 

 PLATE XXVIII. Fig. 1. 



"We refer this insect to the family of Pyralidae, on 

 account of its general structure, although the ar- 

 rangement of the veins of the wings differs from 

 that of any of that family, having somewhat of a 

 similar shape, with which we have compared it. 



The body is slender; the head small; the an- 

 tenna? long, slender, and filiform ; the palpi nearly 

 three times as long as the head, compressed, slender, 

 attenuated to the tip, bent downwards ; the spiral 

 tongue long ; the fore wings large and somewhat 

 triangular, with the apex acute and slightly falcate. 

 The mesial vein of the fore wings emits three 

 branches, the third of which is connected by a 

 slender vein with the inner branch of the postcostal 

 vein, a simple longitudinal vein extending from the 

 base of the wing to the extremity through the 

 middle of this cross vein; the first and second 

 branches of the postcostal vein are not extended to 

 the costal margin of the wing, but form small 

 oblong cells; the hind wings are large, with the 

 outer margin slightly emarginate ; the abdomen is 

 slender, but rather thicker towards the extremity ; 



