1 16 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xi,, 



HEMILEUCA JUNO Packard. 



Plate XXIII, fig. 6; LII, fig. 6; LXIII, figs. 3, 4; LXVII, figs. 3, 4. 



Hemileuca juno Packard [Rep. Peabody Acad., IV (1872), p. 87. Kirby givea the date as 1871, but it was in the 



Peabody Report for 1871, published in 1872]. 

 Hemileuca yavapai Neumoegen [Papilio, I (1881), p. 172]. 



Imago. — Two cf , two 9 . The male differs from H. maia cf in the head not being so rouglily 

 hirsute, and the antennas are dark brown, not black. In cf and 9 the fore wings are a little 

 more pointed at the apex, and the inner edge is not so full and convex. The white band only 

 reaches to vein II. The hind wings are less rounded at the apex; it is also a smaller species. 



[Dr. Packard's original description was as follows:] 



Hemileuca Juno, n. sp., two cf , one 9 . Similar in its form to H. maia, but without the 

 white band on the liind wings. Antennas reddish; pectinations darker. Body dark brown; 

 reddish hairs on under side of head and base of legs, not so dark, however, as in II. maia. 

 Hairs on prothorax whitish, those on metathorax forming a transverse band of a deeper red 

 than on end of abdomen. Scattered gray hairs on the thorax. Both wings uniformly dark 

 brown; fore wings crossed by a broad diffuse white band, broken up into intervenular spots; 

 it widens on the subcostal region, touching the costal end of the discal spot, and does not reach 

 the costa. Discal spot hyaline, regularly crescent shaped. Hind wings with a few white scales 

 beyond the discal spot, the latter minute, obscure and surrounded with a roundish, blackish 

 cloud. Beneath, the whitish band appears most distinct toward the costa. On hind wings 

 there is a round white patch beyond the discal dot, and another between it and the costa. 

 Discal dot more distinct than above on both wings, especially the hind pair, and forming a 

 white dot with a straight hair line running through it, wliile the round dark cloud inclosing it 

 is more distinct than above. Abdomen clothed above with dull reddish hairs, with brighter 

 red hairs on the three terminal rings. 



Length of fore wing, cf 1.15; 9 1.25; of body, cf 0.85; 9 1.05 inches. 



Border of Arizona and Sonora (Dr. Edward Palmer). 



H. Jiera is said by Harris to be yellow, and seems to be a larger species than II. juno. 



[Nuemoegen said of H. yavapai: "Similar in its form to H. juno Pack, and H. diana Pack., 

 but is readily distinguishable from both by the glaring red abdomen of the male, and the black 

 abdomen of the female. Besides, H. yavapai has a white subcostal line, and other peculiarities, 

 which do not agree with 77. juno." Dr. Packard, however, compared H. juno with the descrip- 

 tion of yavapai, and found them "just the same!" He also left a note on the variation, as 

 follows :] 



II. yavapai varies from Neumoegen's type male and female; (a) in white band of fore 

 wing being wider behind, but hind wing black; (b) white band on fore wing very wide, and a 

 similar white band on hind wing, not reaching costa or hind edge. A white discal narrow spot 

 is present or absent. 



Geographical distribution. — It occurs with H. nevadensis artemis Packard in the Mesilla 

 Valley, N. Mex., "Middle Sonoran zone" (Cockerell).' [Arizona; Sonora; Kirby, Cat. Lep. 

 Het. I, p. 784. Mexico; Arizona; Dyar, List N. Am. Lep. p. 74. Represented in coll. Barnes 

 from Arizona, one cf (H. K. Morrison); Yavapai, Ariz., two cf ; Arizona, one 9 ; Christmas, 

 Gila County, Ariz. (Lusk), one 9 .] 



[Larva. — Henry Edwards, Entomologica Americana, III (1887), p. 167, gave the following 

 description, as II. yavapai: 



Body velvety black, beautifully irrorated with yellowish-white dots. Head reddish brown, 

 with deep channel on the crown and bearing numerous tawny hairs. Second segment with 

 two wine-red tubercles in front, and on the anterior edge is a fringe of tubercles, bearing pencils 

 of black hairs. The segments are divided by a transverse dull orange band, bearing a black 

 bar, and there is a double dorsal interrupted whitish line, running the whole length of the body. 



1 The //. j,mo recorded by Townsend, Canadian Entomologist, 1892, p. 199, is H. artemis. 



