212 FORTF-SECOND REPORT ON THE STATE MUSEUM. [70] 



substigmatal whitish one. Head nearly as large as the first segment, 

 pale brown with two darker lines down its front and paler reticula- 

 tions on the sides. Body cylindrical. All of the prolegs are fully 

 developed and there is no looping in walking. 



Fifth stage. — On July ninth the larvae were observed in their fourth 

 and last molting. At maturity, they measure when at rest 1.5 inch, 

 and are nearly cylindrical in form; when extended in motion they are 

 two inches long with the body tapering quite regularly from the 

 eleventh segment to the head. The head is biiobed above, flattened 

 in front, brown, *with darker brown reticulations. The body is an 

 obscure pale brown, with indistinct dark brown mottlings, smooth, 

 except the usual setiform spots, each with a short white hair; trape- 

 zoidal spots dark brown and inconspicuous — the anterior pair con- 

 tiguous. Beneath, paler; legs unicolored. 



The larvae were fed on poplar leaves to maturity. 

 Pupation. — First change to the pupa on July twenty-first — the last 

 on July thirtieth — about thirty in all. Most of the larvae declined to 

 enter the ground that was given them, but pupated on the surface. 

 After their pupation they were covered lightly with earth. A few 

 buried two or three inches in the ground, where they made rude 

 cocoons of earth by spinning together the surrounding soil in walls 

 of about one-fourth of an inch in thickness. 



Disclosure of the Imago. — The pupae were kept during the winter in a 

 warm room, having a temperature of 70° Fahr. and above. Although 

 the breeding-case in which they were placed was supplied underneath 

 its wire floor with an evaporating pan to furnish needed moisture, 



very few moths were disclosed. The 

 first emerged in January, 1888 — three 

 examples prior to January twenty-first. 

 A second and third example followed 

 during the month, and four otheis in 

 February; and although the pupae 

 Fig. 19— Mamestejl gkandis. seemed in good condition for months 

 thereafter, and some occasionally worked their way to the surface 

 when covered only with a thin layer of earth, no other examples of 

 the moth were obtained. The moth bears such a general resemblance 

 to Hadena Arclica (Boisd.), that it was at first mistaken for it. It is 

 represented in Fig. 19. 



Distribution. 



Mamestra grandis has rarely occurred among the large collections of 

 Noctuidos made in the vicinity of Albany during the years 1877 and 

 1878 by Messrs. Meske, Hill, Bailey, Chatfield, and others. It is 



