rgoo] ENTOMOLOGICAL NEWS. 589 



together on dorsum at base of caudal horn. Granulations of 

 whole body very distinct. Stigmata bordered by glaucus : 

 under lense each stigma, save first, shows a central whitish 

 space. 



4th moult. — June 20th, noon. Length i^\ inches long ; head 

 bluish green. Viewed dorsally glaucus whitish above ; a central 

 and two lateral bluish lines ; below each of latter a yellowish 

 white line separating glaucus of dorsum from green-yellow of 

 sides ; dorsum wtth fine white-green granulations ; under sur- 

 face wine color from rear to beginning of 5th segment, rest of 

 central surface brown-purple. Dorsal horn black, yellow at 

 base of sides, covered with shining black spinules. A yellow 

 granulated dorsal collar on first segment behind head. Stig- 

 mata encircled with greenish white ; black, deepest in center 

 (opening). 



June 24th. — Discoloration prior to pupation beginning to 

 show ; larvae now ly^^ inches long. Colors as last described. 

 The pupal discoloration, starting at 3 P. M., began by a 

 gradual dimming of the colors and a widening of the dorsal 

 stripe, which becomes a dirty olive ; this color gradually 

 spreads over the whole dorsal field ; by 9 P. M. the discolora- 

 tion was complete and the dorsal space was wine-colored ; this 

 larvae then began to hunt for a place to pupate. By June 25th, 

 7 P. M., each in this cage had spun a loose brown-purple web 

 enclosing the larva and attached to leaves, gravel, etc., in the 

 bottom of the cage ; a few spun among the leaves of the food 

 plant ; none entered the earth. June 29th, pupation complete. 



The above descriptions apply to eight larvae, separated from 

 the rest and kept on my study table in a glass-covered box ; 

 the rest were in a regulation breeding cage out on the piazza, 

 subject to the cool nights, and were a week behind in pupation. 

 This seemed to make no difference in the imagines, the eight 

 indoor ones giving seven diffinis and one cethra, and those 

 outside being various in their forms, mostly true diffinis and 

 one or two cethra. These commenced to emerge on July 12, 

 continuing up to the 20th, and I have about fifteen pupa, yet 

 alive and healthy, and which will probably winter. I have 

 never found them on any plant but Triostetim perfoliatum. 



