no. i. BOMBYCINE MOTHS OF NORTH AMERICA -PACKARD. 59 



Suranal plate a little narrower triangular than in L. tyrrhena and similarly granulated, but 

 the granulations are a little coarser, more numerous and crowded; so with those on the outer 

 edge of the anal legs. L. phaedusa has also lost the conspicuous metallic silver spot on the 

 second abdominal segment of L. tyrrhena, and the supraspiracular conical tubercle is present, 

 though absent in L. tyrrhena. Thoracic legs a little larger and longer, no white on the pro- 

 thoracic plate in front. There are scattered dark dots over the body above and on the sides. 

 The lateral line is distinct but not yellow. It thus appears that the present species is phylo- 

 genetically the older, more primitive form of the genus. Loaned by American Museum of 

 Natural History, Schaus collection. 



[The larva is figured by Beutenmuller in Journ. N. Y. Ent. Soc, IX (1901), p. 194.] 

 Pupa. — Large and robust, with a curved ridge on the anterior part of the thorax. The 

 anal process is long, compressed at the base above and below. The anal segment has two 

 oblong apertures above. [Beutenmuller Journ. N. Y. Ent. Soc, IX (1901), p. 194, and figure 



on p. 193.] 



LOBOBUNAEA TYRRHENA (Westwood). 



Plate XXXIII, figs. 6, 7. 



Saturnia tyrrhena Westwood, Proc. Zool. Soc. London, 1849, p. 51, PI. VIII, fig. 1. 



Bunaea tyrrhena Walker, Cat. Lep. Het. Br. Mus., V, p. 1229, 1855. 



Bunaea tyrrhena Kirby, Syn. Cat. Lep. Het., I, p. 752, 1892. 



Bunaea tyrrhena Rothschild, Nov. Zool., II, p. 39, 1895. 



Bunaea tyrrhena Sonthonnax, Annales Labr. d'Etude de la Soie, X, p. 36, PI. XVIII, fig. 2. 



Bunaea catochra Karsch. [This is considered a subspecies by Rothschild.] 



Imago. — One S , one ?. Antennas of <f widely pectinated; 16 joints with long normal 

 branches and the filiform tip consists of 12 joints, with 9 pairs of vestigial pectinations developed 

 on one side only, and the terminal ones a little longer than the first ones, none of them ciliated, 

 while the normal ones are densely so. 



Wings of nearly the same shape as in L. phaedusa. The <? is soft reddish salmon-brown, 

 especially on the hind wings; fore wings crossed by three lines; the basal one very zigzag, with 

 four sharp points directed inward; those on the subcostal (II) and median (III-IV) veins the 

 largest; the line inside dull salmon to the base, but grizzly towards the costa. Extradiscal line 

 dusky, situated just beyond the small triangular clear discal spot, and consisting of about 8 

 scallops, the largest and most distinct of which lies in the submedian cell. About halfway 

 between this and the outer edge is a deeply scalloped line of about nine scallops, these and the 

 sinuses between these rounded. Middle of the wing dusky salmon-brown, beyond salmon 

 color; beyond the third line dull salmon; the edge of the wing clear and somewhat hoary. 



Hind wings somewhat hoary near and at the margin; within reddish dull salmon, beginning 

 on the inner edge of the basal line and on the second line which fades out before reaching the 

 discal spot. Extradiscal line divided into six or seven scallops, not reaching the costal region. 

 Discal spot large, round, black, paler around the triangular clear center (8 by 8 mm.). On the 

 under side of each wing is a very large group of four to five unequal irregular brown discal spots; 

 general hue of the wings very light salmon fawn color; the two outer lines imperfectly reproduced. 

 Apex brown, and the fringe brown interrupted by the veins. Head, breast, and legs brown. 



The 9 differs much in coloration, being uniformly reddish brown on both wings; the three 

 lines distinct, the middle one touching the discal spot, which is nearly as large as in Bunaea 

 alcinoe, but not so wide, not produced inwards or outwards, not so long as wide. Discal spot 

 of the hind wings with the triangular center larger and equilaterally triangular. Underside 

 darker than in 9 and hoary salmon, and a rather large triangular clear spot in the center of the 

 brown patch in the wings of both pairs. 



Expanse of the fore wings, <? 126 mm.; 9 128 mm. 



Length of one fore wing, cf 55 mm. ; 9 58 mm. 



Breadth of one fore wing, <? 31 mm.; 9 30 mm. 



Length of one hind wing, <j 40 mm.; 9 40 mm. 



Breadth of one hind wing, <$ 30 mm.; 9 31 mm. 



