TIIK CANADIAN ENTOMOLOGIST. 835 



Luteicoma, G. & R., on p. 152, should read irnpleta, Wlk., and 

 further corrections to be made as in preceding instance 



Persuasa, Harv., must be replaced by brumosa, Gn., and corrections 

 made as before. 



Acrotiyda hamamelis, Gn., type, is a very dark, powdery form, and 

 is the form named afflida by Grote ; not at all the species heretofore so 

 named in our collections. 



Acrotiyda afflida, Grt., not the type ; but so named by Mr. Grote, 

 and like the species so recognized in American collections. This is the 

 same as A. /lamarnelis, Gn., which is also the same as brumosa, var. b of Gn. 

 This will explain why Guene'e describes the larva of brumosa for ham- 

 amelis. He had evidently mixed up three species ; a very dark form of 

 what we call hamamelis being easily confused with afflida. At all events, 

 I cannot find any difference between type specimens of hamamelis, Gn.; 

 brumosa, var. b., Gn., and afflida, Grt. The latter name on p. 127 of the 

 Revision must be replaced by hamamelis wherever the species there 

 described is referred to; while hamamelis, Gn., on p. 141, is really 

 unnamed, and may be called inclara. 



Acrotiyda haesitaia,Gx\..,\y\)e. A good species, and not clarescetis,Gn. 



Acrotiyda clarescetis, Gn., type. This is the species which was so 

 named in American collections by Mr. Grote, and Mr. Butler was altogether 

 in error in associating it with hatnamclis (haesitata). I was the more 

 ready to accept Mr. Butler's determination because the description does 

 really apply to haesitata more nearly than to the species for which it is 

 actually intended. At all events, haesitata, Grt., must be restored, and 

 clarescetis, Gn., must be again transferred to the species so long 

 known as such, and now listed SiS prutii. 



Acrotiyda detitata, Grt., type. 



Acrotiyda iticreta, Morr. A specimen marked "type" in Mr. Grote's 

 handwriting is in the collection. Associated with it are three examples 

 oi inclara — i.e., hattiamelis, Auct., tiec. Guene'e. 



Acrotiycta disseda, Grt., type. There is also a type specimen in the 

 collection of the American Entomological Society. The type airetardata, 

 Wlk., which has priority, is in the collection of Entomological Society of 

 Ontario. 



Acrotiycta exilis, Grt., type ; A. modica, Wlk., type. These seem to 

 be alike ; but there is perhaps a question. The type of exilis is the 

 small, light form, with much yellow in the cell and over the ordinary 

 spots ; the type of ttwdica is as large as ovata, but not so sharply 



