220 LEPIDOPTERA OF NORTH AMERICA. 



wings. "Wings wide and sometimes fenestrate ; fore wings 

 often falcate, interior margin with only one vein. No fre- 

 nulum. 



SATURNIA Schrank. 



Palpi distinct, rather short, clothed with scales, compressed, 

 triarticulate, terminal joint short, ovate ; maxillae obsolete. An- 

 tennae short ; those of the male bipectinated, each joint bearing a 

 simple pectination, the latter diminishing in length towards the 

 apex of the antennae ; those of the female with each joint uniden- 

 tate, not pectinated; head moderate ; thorax rather short and pilose ; 

 abdomen moderate, pilose, tufted at the apex; wings entire, broad, 

 horizontally expanded. — Stevens' Illust. Brit. Ins., Yol. II, p. 36. 



1. S, io Smith fr Abbot. Figured in Vol. I, pi. 49. Naturalists' Lib. 

 XXXVII. p. 156, pi. 16, fig. 3. 



Antennae, head, and thorax yellow, the two latter hairy ; supe- 

 riors, yellow in the male, with several undulating brown streaks ; 

 reddish-brown in the female, with three waved continuous yellow 

 lines across the surface and a cluster of small yellow spots towards 

 the centre. Superiors, yellow beneath, with a black ocelliform 

 spot in the middle, with a white pupil, behind which is a transverse 

 reddish ray. Inferiors, yellow above, with a large central ocelli- 

 form spot, which is black, with a white elongated pupil ; behind 

 this eye there is a black semicircular band, succeeded by another 

 parallel one which is ferruginous ; the inner margin of the wing is 

 likewise ferruginous. On the under side yellow, with a transverse 

 ferruginous ray. 



The., male expands two and a half inches ; the female is larger. 

 Thorax and legs ferruginous, abdomen ochre-yellow, with a- narrow 

 purple line on each segment. 



Larva, clear green, with a lateral brown stripe, edged below with 

 white, beginning on the fourth segment and ending at the anus. 

 Each segment has five or six tufts of green prickles, terminated by 

 minute black points, which occasion a smarting sensation if they 

 penetrate the hand. There is a triangular brown spot on the 

 under side of each segment, beginning with the fourth. Feet 

 brown. 



The cocoon is spun between several dry leaves. 



