130 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Geogropli Icfil distrihidion. — The genus is distinctively a South and Central American one, i. e., 

 neoganc, a single species having perhaps migrated from Brazil and the regions northward up 

 into the Mississippi Valley and along the Atlantic coast as far north as Massachusetts, then 

 becoming modified, and assuming its peculiar characters. A second species, C. se.pulcralis, 

 appears to be peculiar to the Atlantic States, ranging from Maine to Georgia, but not j'et known 

 to occur west of the Alleghanies. 



Syiionyniieal htstory. — The names Ceracampa, Ceratocampa, and Dorycampa were bestowed 

 on (his genus in ignorance of Hiibuer's work, which atthe time those names were proposed was 



Fig. 17.— Distributiuu of thu guuus Citheronia. 



an oijscure book. The recent combination of Eacles and Citheronia by Kirby was scared}' a step 

 in advance. 



CITHERONI.A. R.EGA.LIS (Fabricius). 

 (PI. XXXV, figg. 1. la.) 



Bomhyxregalis Fabricius, Ent. Syst. Ill (1), p. 436, No. 9.3, $ . 1793. 



AUacii!< laocoon Cr.\mer, Pap. exot. II, tab. 117, B. C. — V. pp. 179-180, vdr. Stoll, Suppl. Cram. tab. 42, fig. 



2, $. 1790. 

 Phakvna regia Aumn ixud i^iimi, Le'p. Ins. Georgia, II, tal). 61, 9- 1797. 

 Cilhenmia regalls HvBKER, Verz. Schmett., p. 153. 1818-1822. 

 Ceracampa Kirby and Spence, Intr. Ent. II, p. 235; III, p. 179. 1828. 



