152 TWENTY-THIED REPORT ON THE StaTE CaBIXET. 



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



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



Bomhyx 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. 



Phaloina Proserpina Smith. Sm.-Abb. Lep. Ins. Geor., 1797, II, p. 99, pi. 50, 5 , ? 



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



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



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



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



Saturnia Maia Duncan. Nat. Lib., 1845, XXXII, p. 154, pi. 10, f. 1. 



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



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



Hemileuca Maia Walker. Cat. Lep. Br. Mus , 1855, v. YI. 



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



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



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



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



;j^OTE. — 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 larvaj all going into the chrysalis at the same time, part 

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

 lyino- 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 to have a pupa 

 pass over one spring to emerge the following year, but in these 

 instances, there is not, to our knowledge, a regular previous late-sum- 

 mer or early-fall brood, as with II. 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 ith^ 

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

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

 sliowed 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 ftict of most of the pupffi continuing 

 alive during the M'inter, would indicate the summer as the regular 

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

 j\[r. Sprague's observations. 



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



