No. 1. 



BOMBYCINE MOTHS OF NORTH AMERICA— PACKARD. 



135 



Fig. 14. — Head of Pseudohazis 

 eglanterina; from dried specimen. 



on the contrary they resemble spines, one being larger and darker than the others; the spine 

 on the ninth segment is a little smaller than the one preceding it. 



To recapitulate, it will be seen that the spinulate spines of Pseudohazis eglanterina in stage I 

 are more complicated than those of Automeris io of the same stage, so that the body is more 

 concealed from view. The thoracic dorsal spines are forked but not so simply as in A . io, while 

 the median single ones on the eighth and ninth abdominal segments 

 are not forked but more or less densely spined in irregular whorls, with 

 one of the spines larger than the others. 



Fully grown larva. — The following description was drawn up many 

 years ago from between 40 and 50 alcoholic specimens from the Gulf 

 of Georgia, Cal., in the Museum of Comparative Zoology. There was 

 no noticeable variation in the lot. The larva is intermediate in its char- 

 acters and in size between Hemileuca maia, which it more nearly approaches, and Automeris io. 

 The head is smaller than in either of the two genera mentioned; in the thickness of the body it 

 approaches A. io rather than H. maia. The shape of the clypeus is much like that of H. maia. 

 The dorsal spines are whorled as in H. maia. The lateral subdivided or whorled setiferous 

 spines are longer than those of the two dorsal rows, but are not so long as in H. maia. The 

 arrangement of the longer spines on the thoracic segments, and on the eighth and ninth abdominal 

 segments are as in H. maia, but they are shorter, more bushy and more subdivided. The 

 suranal plate is triangular lunate. The dorsal spines are shorter and sharper than those of 



H. maia, being very sharp and the prick painful even in alcoholic 

 specimens. 



The head, body and spines are black; in H. maia the head is 

 reddish, in A. io amber. There is no special coloration to mark 

 the larva of H. eglanterina, the body in alcoholic specimens being 

 uniformly dark. 



Larva of fourth stage. — The larva in this stage scarcely differs 

 from that in the last stage, the inequality between the length of 

 the dorsal and upper lateral spines is observed in this stage. 



Mr. H. Edwards has described (Proc. Cal. Acad. Sci., 19 April, 

 1875) the eggs and the mature larva; he states that it feeds on Frangula californica [Rhamnus 

 purshiana de Candolle] and Rosa. He states that the head is black, and the body entirely 

 dull black. "Each segment is armed with six lateral spines, very finely branched, and two 

 dorsal fascicles of spines, bright chestnut color, blackish in the center. The branchlets of the 

 spines are all bright chestnut in color. Underside, as well as the feet and abdominal legs, dull 

 black. Length, 2 inches." 



[The above account appeared in Psyche, March-April, 1890, pp. 325-327.] 

 [J. E. Cottle, of San Francisco, gives rose as a food plant of P. eglanterina.] 

 [Parasites. — Apanteles sp. was bred from larvte of P. eglanterina, and sent in by L. E. Rick- 

 secker, Santa Rosa, Cal., according to Pergande's notes.] 



PSEUDOHAZIS SHASTAENSIS (Behrens). 



Plate XXV, fig. 3; LXII, figs. 3-7; LXVIII, fig. 5. 



[Pseudohazis eglanterina var. shastaensis Behrens, N. Amer. Ent., 1 (1880), p. 62.] 



[Pseudohazis shastaensis Dyar, Psyche, May, 1894, p. 91.] Proc. U. S. Natl. Mus., XXVII (1904), p. 792. 



[P. eglanterina, form alt. shastaensis Behrens. 



Similar in maculation to eglanterina, the whole upper surface of primaries however largely 

 suffused with black; in extreme forms the only traces of ground color are found in a row of 

 interspacial yellow or pink spots in the terminal area, and even these may possibly at times 

 disappear; ordinarily there are several pink or yellow patches in the median area around and 

 below the discocellular spot and a dash of ground color at base of wing, as well as distinct large 

 terminal patches. Beneath the black suffusion is not so extended, and the majority of speci- 

 mens appear but slightly darker than the type form. 



Fig. 15. — Detail of hind wing of Pseudohazis 

 hera. Ranch, Utah (Siler). 



