Occasional Papers of the Museum of Zoology 21 



167. Cacnurgia ercchtca Cram. — Schoolcraft, Mackinac^ 

 Charlevoix, Emmet, Cheboygan ; May 12-September 28. Both 

 this and the preceding species are common and occur together. 

 The difference between them is so slight that their separation 

 is very unsatisfactory. There is no doubt, however, that both, 

 species have been taken. 



168. Zale minerea Gn. — Mackinac; Ji-me 13. One only. 



169. Autographa falcifera Kirby, form simplex Gn. — 

 Schoolcraft, Mackinac, Charlevoix, Emmet, Cheboygan; j\Iay 

 26-October I. Very common. Some of the specimens approach 

 closely to the typical form. 



170. Autographa brassicae Riley. — Mackinac; June 29- 

 October 3. Not common. 



171. Autographa precationis Gn. — INIackinac; August 3-9. 

 Only two specimens. 



172. Autographa bimaculata Steph. — Mackinac, Marquette; 

 July i-io. One specimen reared from larva. 



173. Autographa jiiappa G. &:R. — Mackinac ; June 18. Only 

 one specimen. 



174. Autographa ou Gn. — Mackinac; June 29. One only. 



175. Plusia aereoides Grt. — Mackinac ; July 19. One speci- 

 men taken at light. 



176. Drasteria graphka Hbn. — Schoolcraft, Mackinac; 

 May 30- June 18. Common in restricted localities. 



177. Syneda adumbrata Behr. (?). — Mackinac; June 15-27. 

 Two specimens. The determination of this species is not sat- 

 isfactory, being based wholly uDon Holland's plate. The speci- 

 men is very different from graphica. 



178. Scoliopteryx libatrix Linn. — Mackinac, Emmet, Mar- 

 quette; July 19-September 3. Three specimens. 



179. Alabama argillacea Hbn. — IMackinac; September 5- 

 October 2. Ver\- common. This moth was especially abun- 



