no. i. BOMBYCINE MOTHS OF NORTH AMERICA— PACKARD. 235 



[CALLOSAMIA ANGULIFERA CAROLINA F. M. Jones.] 

 Plate LIX, figs. 11 and 12. 



[Described in Entom. News, 190S, p. 231. Type locality Berkeley County, South Carolina. 

 In Entom. News, 1909, p. 49, is a description of larva, and figures of moth and cocoons. The 

 insect is here called CaUosamia Carolina.] 



Recapitulation of the more Salient Ontogenetic Features of CaUosamia. 



A. Congenital Features. 



1. Hatched with heavy black transverse bands on a yellow body, and the head black, banded 

 with yellow; the bristles moderately long; thus the larva is already a rather conspicuous object. 



2. The dorsal thoracic tubercles already differentiated in size and color from those on abdom- 

 inal segments 1 to 7. The differences between the freshly hatched larva and the last stage 

 very marked ; more so than in Platysamia or Samia. 



B. Evolution of later Adaptational Features. 



1 . In stage II the body becomes paler, and thus the black bands more conspicuous. The 

 second and third thoracic dorsal tubercles and those on abdominal segments 1 to 8 are now 

 all yellowish, and of the same size. 



2. Disappearance in stage III of the transverse black bands. The abdominal tubercles all 

 become blackish. 



3. In stage IV the head becomes yellow, being less conspicuously marked, and the dorsal 

 abdominal tubercles are about half as long and large as those on the second and third thoracic 

 segments. 



4. The body becomes in the last stage much smoother than before, the dorsal prothoracic 

 and abdominal tubercles being much shorter than in stage IV. This reduction of size and 

 inconspicuousness of the dorsal abdominal tubercles «is carried out to excess in C. angulifera, 

 where they become obsolete, and the larva is simply a large green caterpillar with inconspicuous 

 markings, and simply protected by its green color, like the majority of lepidopterous larvae; , 

 not being so strikingly marked as in the fully fed Philosamia cynthia. 



[EUPACKARDIA Cockerell.] 



CALLOSAMIA CALLETA (Westwood). 



Plate XL, figs. 2-5; XLIX, fig. 1; LXIX, fig. 1. 



[Saturnia calleta Westwood, Proc. Zool. Soc. Lond., 1853, p. 166, pi. 33, fig. 2. 



Samia calleta Walker, Cat. Lep. Het. Brit. Mus., V (1855), p. 1225. 



Attacus calleta J. B. Smith, Proc. U. S. Nat. Mus., IX (1886), p. 422. 



CaUosamia calleta W. F. Kirby, Syn. Cat. Lep. Het., 1 (1892), p. 750. 



Eupackardia calleta Cockerell, Entom. News., May, 1912, p. 228. 



Platysamia polyommata Tepper, Bull. Brooklyn Soc, V (1882), p. 66, pi. 1, fig. 3.] 



Male. — Antennae as in C. promethea. A white posterior thoracic band is present (absent 

 in 0. promethea). 



Fore wings less falcate than in promethea o* , but more falcate than in 9 of that species; 

 uniformly dark Vandyke brown within the extradiscal white band. Discal spot regularly 

 trigonate, white, of the same shape and size in both wings, the angles attenuated, a little 

 prolonged; it is intermediate in size between 0. angulifera and promethea. The extradiscal 

 line forms a wide white band, even sligntly sinuous, not wavy or scalloped; beginning on the 

 outer fourth of the costa, where it curves outward, the line ends near the outer third of the 

 hind inner edge, curving inward and extending along the inner edge of the wings; the line is 

 narrowly edged externally with red. The fine brown submarginal line is not deeply sinuous, 

 as in the two other species, but only very slightly so; beyond it the edge of the wing is pale. 



