OF NORTH AMERICA. 165 



BOMBYCIDffl. 

 LITHOSIIDJG. 

 Genus CRAMBIDIA. Packard. 



" Head much as in Lithosia, but the front converges more anteri- 

 orly, and the scales are coarser and longer. Antennae setose, other- 

 wise simple, but a little stouter than in Lithosia and the porrect palpi 

 are larger, extending a little farther out beyond the front. 



" Body as in Lithosia. Primaries narrow oblong, one third as broad 

 as long. Costa convex, apex subrectangular, outer edge very straight, 

 one fourth as long as inner edge. Nervures remarkably equidistant. 

 Costal midway between the marginal and subcostal nervure, ist sub- 

 costal very short, arising remote from the second, and terminating on 

 the costal, which last is very long. 2nd terminating on costa, oppo- 

 site the fork of the 3d, which last encloses a long narrow apical in- 

 terspace ; 5th independent. But hvo median tiervules, the nervure 

 subdividing much within the middle of the wing. 



"Secondaries broad triangular, reaching beyond the tip of the ab- 

 domen, of much the same form as in Lithosia, but two median ner- 

 vules arising in the middle of the wing. Legs stouter than in 

 Lithosia with much larger spurs. Abomen with a prominent tuft. 



"Not only of smaller size than Lithosia, but differing in the straight 

 outer edge of the primaries, and in the neuration, throughout ; since 

 Crambidia has one half shorter subcostal nervules, and the 5th is situ- 

 ated nearly in the middle of the wing ; and I can discover but two 

 median nervules, while Lithosia has three. Also in Lithosia, the 

 median nervure subdivides on the inner third of the secondaries ; in 

 our genus at the middle of the wing. When at rest the wings are 

 folded flat upon the abdomen, much as in Lithosia." 



Packard, Proc. Ent. Soc. Phil., vol. 3, p. 99. 



l.-CRAMBIDIA PALLIDA. (PI. 7, fig. 16.) 



Crambidia Pallida, Packard, Proc. Ent. Soc. Phil., vol. 3, p. 99. 

 (1864.) 



