20 TWENTY-THIRD REPORT ON THE STATE CABINET. [152] 



Bombyx Proserpina Fabr. Mant. Ins., 1787, II, p. 110, n. 35. 



Bombyx Proserpina Fabr. Ent. Syst. em., 1792, III, p. 419, n. 40. 



Bombyx Proserpina Pal. Bauv. Ins. Af. Amer. Lep., 1786-97, pi. 24, figs. 2, 3. 



Bombyx Proserpina Olivier : in Enc. Method. Hist. Nat. Ins., 1789, V, p. 37, n. 48. 



Phalcena Proserpina Smith. Sm.-Abb. Lep. Ins. Geor., 1797, II, p. 99, pi. 50, $ , $ . 



Saturnia Maia Hiibner. Yerz. Schm.. 1816, p. 157. 



Saturnia Proserpina F. Harr. Cat. An. and PI. Mass., 1835, p. 72. 



Saturnia Maia Westw.-Drur. Illus. Exot. Ent., 1837, II, p. 45, pi. 24, f. 3, $ . 



Saturnia Maia Drur. Harr. Eep. Ins. Mass., 1841, p. 285. 



Saturnia Maia Duncan. Nat. Lib., 1845, XXXII, p. 154, pi. 16, f. 1. 



Saturnia Maia Dmr. Harr. Treat. Ins. New Eng., 1852, p. 305. 



Saturnia Maia Emm. Agric. N. Y., 1854, V, p. 231, pi. 39, figs. 2, 3, $ , $ . 



H&mileuca Maia Walker. Cat. Lep. Br. Mus., 1855, v. VI. 



Saturnia Maia Drur. Morr. Synop. Lep. N. A., 1862, p. 221. 



Saturnia Maia Drur. Harr. Ins. Inj. Veg., 1862, p. 396, f. 193, $ . 



Euchronia Maia Packard : in Proc. Ent. Soc. Ph., 1864, III, p. 383. 



Hemileuca Maia Gr. and Kob : in Ann. Lye. Nat. Hist. N. Y., VIII, p. 376. 



NOTE. Since the above was written, I observe that Mr. P. S. 

 Sprague reports * that from a brood of H. Maia which he reared from 

 the larvae, a portion emerged in October, and one deformed specimen 

 in the following May, and that according to Miss C. Guild, " of the 

 same brood of larvae all going into the chrysalis at the same time, part 

 came out in October and others not until the following October, some 

 lying in chrysalis one year longer than others." This statement of 

 Miss Guild conforms to that of Mr. Wood, previously cited, but it 

 seems so remarkable that a moth should have three distinct periods of 

 emergence, viz., September -October, May- June and October of the 

 following year, that we are not prepared to receive it as an accepted 

 portion of the history of our insect, without additional confirmatory 

 evidence. It is not very rare among the Sphingidae for a pupa to pass 

 over one spring and emerge the year thereafter, but in these instances, 

 there is not, to our knowledge, a regular previous late-summer or early- 

 fall brood, as with H. Maia. 



From my observations it appears that a limited number of the moths 

 emerge after a pupation of about two months. Much the larger por- 

 tion of the pupae of my colony survived the winter. On June 4th, 

 one produced the moth; thence to July 4th, five additional ones 

 emerged. An examination of the pupae a month or two thereafter, 

 showed the remaining ones to be dead. "While the number of moths 

 produced as above in the summer was the same as the number in the 

 fall (six in each instance), yet the fact of most of the pupae continuing 

 alive during the winter, would indicate the summer as the regular 

 period of appearance. This, however, seems to be at variance with 

 Mr. Sprague's observations. 



* Canadian Entomologist, 1859, vol. i, p. 41. 



