No. 2. J GKOTE ON NORTH AMERICAN MOTHS. . 267 



material I have not been able to decide the question. I arrange the 

 species provisionally in three groups ; the first may come to be united 

 with Pachypolia. 



Group A. 



acutissima Grote, Check List 23. Can. 



medialis Grote, Ann. Lye. N. H. K. Y., 306, 1876. Can.j N. Y. 



Group B. 



illepida Grote, Can. Ent. 11, 95. Colorado. 



Group C. 



aspera Morr., Bost. S. N. H. 132, 1874; diffmilis Harv.,Can. Ent. 10, 56. 



Northern i^. Y. 

 pallifera Grote, Can. Ent. 9, 88. Illinois. 

 t speciosa Morr., P. Bost. S. N. H. 137, 1874. Mass. 

 tconfragosa Morr., P. Bost. S. N. H. 138, 1874. Canada, 

 aedon Grote, Can. Ent. 12, 154. Eev., W. T. 

 theodori Grote, Can. Ent. 10, 237 ; id. 12, 219. Colorado, 

 epichysis G^ro^ Can. Ent. 12, 219. California. 



Gortyna impecuniosa n. s. 



A smaller and darker form, without clypeal tubercle, allied to cata- 

 phracta. Fore wings dark yellow with the outer margin washed with 

 purplish leaving a terminal yellow shade and the apices with a yellow 

 blotch. Median space shaded with rusty. Stigmata concolorous, sim- 

 ple, all present. Exterior line simiDle, less exserted than usual. Hind 

 wings pale fuscous. The type, a male in my collection, expands 25 mil. 

 I have seen other specimens, larger, in collections submitted to me for 

 determination. Massachusetts. 



Gortyna erepta n. s. 



$ . A stout and rather aberrant form. Eyes naked ; front unarmed ; 

 tibiie unarmed; feeble dorsal tuftings on the abdomen. Yellow. Fore 

 wings dull orange yellow with the lines fuscous, simple. The exte- 

 rior well removed outwardly, a little waved between the veins. Half 

 line present ; interior line uneven, a little outwardly projected below 

 median vein. Claviform a sim^ile outline, incomi)lete. Orbicular con- 

 colorous, a small ringlet. Eeniform small, a white half-moon in a black- 

 ish shade. Hind wings dull yellowish with faint discal mark and exte- 

 rior line. Beneath dull yellowish with faint exterior common line and 

 discal marks. The insect is nearly concolorous; fore wings and thorax 

 darker. An even terminal line on jirimaries. AnteuujT? simple, ciliate 

 beneath. Expanse, 34 mil. Douglas County, Kansas, Professor Snow. 



Gortyna juvenilis Grote, n. s. 



I described this species some time ago; the MS. is in Professor 

 Snow's hands. It is a small form, allied to sera, with bright yellow fore 



