390 L^OVEMBKR 



Xyleutus plagiatus. 



Cossus plagiatus Walk., Cat. Lep. Br. Mus. VII. p. 15T5. (1856). 

 Morris, Synopsis Lep. N. Aiaer. p. 12i. (1862). 

 United States, Doubleday, (Walk.) 



I find the following note in the Systematic List of Canadian Lepi- 

 doptera by W. S. M. D'Urban, Can. Nat. and Geol. Aug. 1860, p. 247. 

 " Cossus plagiatus Walk. Rare, July. 



" In 1857, Mr. T. R. Peale, of the U. S. Patent Office, named this 

 species Cossus McMurtrici, and informed me that it was common south 

 of Pennsylvania, but rare in the Middle States." 



ZEUZERA Fabrieius. 

 Zeuzera canadensis Boisd. 



Zeuzera canadensis H.-Sch., Lep. Exot. Sp. Nov. Fig. 100. (1854). 

 Walk., Cat. Lep. Br. Mus. VII. p. 1530. (1856). 

 Morris, Synopsis Lep. N. Amer. p. 125. (1862). 

 ■• Canada." (Boisd.) 



Zeuzera pi/rina Fabrieius, Ent. Syst. III. 2. 5, 6. 



Walk., Cat. Lep. Br. Mus. VII. p. 15.30. (1856). 



" North America," (Fabr.) 



STHENOPIS nov. gen. 



Head small, prominent, front longer than broad, narrowing a little 

 anteriorly; scales of the front long pilose, thin. Palpi slender, reach- 

 ing nearly to the front, thinly spreading scales; 3rd joint hardly distin- 

 guishable from the 2nd. AntennfB short filiform. Thorax short, sub- 

 globose scales much raised behind. 



Primaries nearly half as broad as long; costa convex at base, and 

 especially so towards the falcate apex, which is subacute; outer mai-gin 

 concave below; internal angle much rounded; inner edge full, convex. 

 2nd subcostal nervule subdivides within its middle, while in Hepialus 

 it subdivides beyond its middle. 1st subcostal much curved beyond its 

 middle, following the contour of the costa. 



Secondaries reach a little beyond the middle of the abdomen ; costa 

 somewhat concave before the middle, beyond convex, apex produced 

 acutely ; outer margin not very full ; wings broadest from the internal 

 angle to the costa. In both wings the distance between the origins of 

 the 4th median nervule and the submedian nervure, where it throws oft' 

 the connecting branch, is less than the distance between the same ner- 

 vule and the origin of the ord. The reverse of this occurs in Hepialus. 



