no. i. BOMBYCINE MOTHS OF NORTH AMERICA— PACKARD. 15 



As the caterpillar is not rare in the neighborhood of Rio Janeiro, it will be most desirable 

 to discover the larva in its first stage and see how it compares, as it probably does closely, with 

 that of Arsenura in its first stage. 



Pupa. — Peters represents the pupa as of the Sphingicampid shape; the head end not much 

 rounded, but the other end of the body ending in a spine or cremaster of moderate size. 



Food plant. — Ascending to Peters the larva lives on the beautiful well-known Paineira. 



Geographical distribution. — Vera Cruz, Mexico (Franck); Brazil, Peters says "it is not 



rare near Rio, where the gray, tailed moth grows larger than in the mountains." Cramer gives 



"West Indies" as its habitat. [Rothschild (1907) has described a subsp. brasiliensis from 



Brazil.] 



DYSDXMONIA KADENH (Herrich-Schaeffer). 



Eacles kadenii Herrich-Schaeffer, Sammlung aussereur. Schmett., p. 61, $ , fig. 444, 1855. 

 Dysdxmonia kadenii Kirby, Syn. Cat. Lep. Het., I, p. 768, 1892. 



In the shape of the antennas and wings, and the tail of the hind wings this, judging from 

 Herrich-Schaeffer 's figure, is congeneric with D. boreas, but there are no clear spots or any 

 kind of discal spots on the fore -wings, though the lines or shades are much as in D. boreas. 



DYSD^MONIA TAMERLAN Maassen. 



Plate CXIII, fig. 2. 



Dysdxmonia tamerlan Maassen, Beitrage Schmett., I, fig. 10, 1869. 

 Dysdxmonia tamerlan Kirby, Syn. Cat. Lep. Het., I, p. 768, 1892. 

 Dysdxmonia tamerlan Rothschild, Nov. Zool., II, p. 48, 1895. 



Imago. — 1 <? . This species is larger than D. boreas. The antennas and palpi are the same 

 as in that species, though the latter are slightly stouter and extend farther beyond the front 

 of the head. Fore and hind wings of the same shape, but the tail is not quite so long and is 

 decidedly broader. The ground color is light fawn-brown while D. boreas is gray or somewhat 

 hoary. In the fore wings the lines and the two clear discal spots are as in D. boreas, but the 

 basal line is less distinct. The sinuses on the outer edge of the wings are deeper than in D. 

 boreas. A large triangular costo-apical spot. Beneath uniformly ochreous-fawn, the extra- 

 discal line forming a dark shade. 



Expanse of fore wings, a* , 142 mm. 



Length of a fore wing, 3 , 75 mm. 



Breadth of a fore wing, <? , 40 mm. 



Length of hind wing, s , 75 mm., including the tail, which is 12 mm. long. 



Breadth of hind wing, c? , 37 mm. 

 Rothschild states that "A great amount of variation is shown in D. tamerlan Maass., both 

 in size and tint, which latter varies from warm gray to chestnut." 



Geographical distribution. — Brazil (Neumoegen coll. in Brooklyn Museum). 



DYSDSEMONIA GLAUCESCENS Walker. 



Dysdxmonia glaucescens Walker, Cat. Lep. Het. Br. Mus., VI, p. 1328, 1855. 

 Dysdxmonia glaucescens Kirby, Syn. Cat. Lep. Het., I, p. 768, 1892. 



Imago. — "Female, brown, antennas testaceous. Fore wings obscurely glaucous, with 

 brown streaks, and with a blackish blue-speckled band, which disappears toward the costa 

 and joins the interior border at two-thirds of the length of the latter; the streaks between this 

 band and the base of the wing are transverse, but the exterior streaks are parallel to the length 

 of the wing; exterior border with a deep notch between two shallow excavations, somewhat 

 angular in front. Hind wings pale brown toward the base, and with an angular pale brown 

 exterior band; exterior border with two broad shallow excavations; tails short, acute, parallel 

 to the length of the wing. Length of the body 17 lines; of the wings 62 lines." 



Geographical distribution. — Brazil (Saunders collection). 



