1870.] 405 [Packard. 



vein, the teeth advancing towards each other. The outer line is very 

 sinuate, widening in the middle and thence sending a linear sinuate 

 line to the inner angle of the wing. Close to the outer edge of the 

 wing, and opposite the rounded bend in the outer band is a round, 

 white spot. A minute white spot on the inner angle. Hind wings 

 with a large, black, oval discal spot ; beyond, an indistinct black line, 

 and beyond this a broad, white band, widening outwards in the 

 middle and connected with a round, marginal, white spot ; another 

 white spot on the inner angle. These markings are distinctly re- 

 peated on the under side of the wings. 



Length of body, .35 ; fore wing, .47 inch. Behrens. 



[While correcting the proofs of this article, I was informed by Prof. Zeller of 

 Stettin, in time to make the change in the proof, that the Choerodes cegrotata 

 (Gnen.), which I had sent to him under a different Ms. name, supposing it to be 

 undescribed, is the Tetrads cegrotata of Guen^e. It agrees with his description, 

 but his determination of the genus misled me, and I am fortunate in being set 

 right by so critical a lepidopterist as Prof. Zeller.] 



New or Rare American Neuroptera, Thysanura, and 

 Myriapoda. 



By A. S. Packard, Jr., MJ). 



My apology for presenting these isolated descriptions is, that they 

 add considerably to our knowledge of the geographical distribution 

 of these groups of insects in North America, and may serve to stim- 

 ulate observers to look more carefully for the species of the less 

 familiar groups of insects. 



NEUROPTERA. 



Amphientomum Hagenii n. sp. 



The body, generally, is of a pale, yellowish horn color. Head of 

 the same color, with a few scattered hairs. Eyes full, round, prom- 

 inent, subglobose. Ocelli arranged in a very low, flat triangle ; the 

 anterior one being on a line with the front edge of the eyes. Behind 

 each of the two basal ocelli, is a blackish brown line, so doubled as 

 to form three sides of an oblong square, with the open side facing the 

 anterior ocellus, the inner sides meeting midway between the ocelli. 

 A dark brown, narrow line extends from eye to eye, passing upwards 

 in the middle, between the anterior and the other two ocelli. A 



