HISTORICAL. 7 



l^ale brown eyes and palpi. It measures about three-eighths of an 

 inch in length. The hornlike process extending above and between 

 the eyes is prominent. 



The pupal stage is passed in a cocoon (fig. 1, g) of rounded oval 

 form, looking not unlike a very small puffball. It is chocolate colored, 

 of firm, nearly parchment-like consistency, and roughened opaque on 

 the outer surface. It measures about four-tenths of an inch in its 

 longer diameter and three-eighths inch in the shorter. 



HISTORICAL. 



Among the notes of the Bureau of Entomology is one copied from 

 Riley's notebook recording the occurrence of the larvte on chestnut 

 at South Pass, 111., in August, 1869. It contains a good description 

 of the larA^a, and states that it feeds on the edges of the leaves, de- 

 vouring every particle as smoothly as if cut with a pair of scissors. 

 Pupation takes place about September 20. It is worthy of note that 

 Eiley was of the opinion that the end of the lid of the cocoon was 



^^^$?i 



Fig. 1. — The rose slug-caterpillar (Euclea indctermina) : a, Female moth; b, male an- 

 tenna ; c, larva, dorsal view ; d, larva, lateral view ; e, spine of larva, much enlarged ; 

 f, pupa; g, cocoon. All enlarged; e, greatly enlarged. (Original.) 



cut by the larva before transformation to pupa, while it is quite 

 obvious that the cephalic armament of the pupa is designed for that 

 purpose, the pupa constantly wriggling around and around, thus 

 making the perfectly circular flap. 



October 7, 1883, larva? were found feeding on oak in Virginia, and 

 at another time feeding on paw paw when in bloom at Point of 

 Rocks, Md. 



August 3, 1889, this species Avas received from Vineland, N. J., 

 where it was taken on Kansas plum. 



