104 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



H. io, and the general color of the body and spines being yellow, instead of gray and reddish, as 

 in the normal H. io in its second and third stages. 



Food plants. — Leaves of the mangrove; also feeds on Conocarpus erecta Jacq., which is 

 related to the mangrove. 



Geographical distribution. — The moths occurred at Punta Gorda (Mrs. Slosson). 



ADTOMERIS PAMINA (Neumoegen). 



Plates XIX, figs. 1-6; LIX, figs. 8, 9; LXVII, figs. 6, 7. 



HypeTchiria pamina Neumoegen, Papilo, II, p. 60, 1882. 



Hyperchiria pamina var. aurosea, Nuemoegen, Papilio, II, p. 61, 1882. 



Hyperchiria pamina Kirby, Syn. Cat. Lep. Het. I. 



Automeris pamina Neumoegen and Dyar, Journ. N. Y. Ent. Soc, II, p. 127, September, 1894. 



Imago.- — One <$ , one ?. Head a little wider in front than in A. io. Palpi of S rather 

 stout, not reaching the front. Fore wings, as in most (not all) South and Central American 

 species, more falcate and elongated, and costa more arched, the wings being less short and 

 broadly triangular in A. io, and hind wings more rounded and convex. Body and wings uni- 

 formly pale faded ochraceous yellow, with a slight olive tinge, almost a light fawn color. (It 

 has a much bleached look, either the effects of the dry Arizona climate, or from long preserva- 

 tion in the insect drawers.) 



Fore wings with no other markings or blotches than an oblique extradiscal narrow ochreous 

 and brown line extending from the middle of the inner edge of the wing to the costa just before 

 the apex. Discal spot irregular, with six dark irregular dots. 



Hind wings of the same general hue, bright straw-yellow surrounding the black discal 

 ocellus, which is centered by a white bent or curved line, with scattering blue scales sprinkled 

 around it; the yellow is bounded by a distinct much curved black line, vanishing on the costal 

 region and near the inner edge, which is pale roseate, beyond it is parallel with the outer edge. 

 Beneath, the wings are uniformly paler; there are no lines; the ocellus of the fore wings 

 is formed of a broad black ring centered with white; that of the hind wings reduced to a small 

 white spot, with a few dark scales around it. Abdomen pale ochreous above, with about four 

 or five pink-red bands. Tarsi pale reddish. 



In this species, which both in its larval and imaginal characters belongs to a different 

 section of the genus from A. io, the two sexes are colored [nearly] alike. The fore wings are 

 longer and more falcate than in A. io, and in coloration, unless it is the result of exposure to the 

 light, though no more exposed than the rest of the group, it is another example of the bleaching 

 process [to] which the heterocerous lepidoptera of so dry and hot climate as that of Arizona, 

 with its intensity of sunlight and aridity of soil, is subjected. In coloration it somewhat ap- 

 proaches A. viridescens and incisa of Brazil, being nearly as pale, but it belongs, judging by the 

 larval characters, to quite a different group from that represented by A. viridescens. 

 Expanse of fore wings, <? 66 mm. ; 9 90 mm. 

 Length of a fore whig, s 32 mm.; ? 48 mm. 

 Breadth of a fore wing, c? 18 mm.; $ 25 mm. 

 Length of hind wing, 25 mm. 

 Breadth of hind wing, 17 mm. 



Ocellus of under side of fore wing, 7 by 5 J mm.; of hind wing, 7 by 7 mm. 

 [Egg and larva: Kunze, Journ. N. Y. Ent. Soc, VIII (1900), pp. 201-205. Larval stages: 

 Henry Edwards, Entomologica Americana, IV (1S88), p. 62.] 



Egg. — From Prescott, Ariz.; perfectly chalk-white. The eggs were received June 29 and 

 hatched July 22-23. 



Larva. — Stage I: Colors when first hatched; head black, body snuff-brown, of the same 

 color as in A. io, finally becoming black. The tubercles are at first snuff-brown, becoming 

 black. The hairs at the tip of the long tubercles are pale brown, like those on the head. August 

 2. Length 13 mm. The two pairs of lateral eversible sacs are not visible. Dull flesh colored. 

 Head and body above, black; body dark snuff-brown below. 

 Geographical distribution. — Prescott, Ariz. 



