BRAZILIAN LEPIDOPTERA. 43 



of No. XXXI, Papilio Thoas ; but after the last change of 

 skin the appearance is quite altered. In this stage it is very 

 handsome. The colour of the back is a sort of sage green. 

 On the third segment is a crescent of brown having several 

 beautiful purplish crimson spots ; on the ninth segment two 

 bands of the same brown colour cross one another on the 

 back, and are dotted with purplish crimson. There are dots 

 of the same colour along the sides. The caterpillar possesses 

 a pair of scent organs, which arc protruded when it is 

 annoyed. (See fig. 10, plate IV.) 



Pupa, a, April, 1880. 



Specimens in my possession were full-fed 10th April, 

 1879, and they attached themselves to the sides of the box 

 in the same manner as No. XXXVIII, Papilio Evander, the 

 chrysalis of which species they much resemble. 



(a, $ Full-fed, Ap. 8; Imago, Sept. 22, 1879 = 167 

 Imago. \ days. 



\h, Feb., 1878 ; c, — . 

 The butterfly appears in September, being more than five 

 months in the pupa state. 



XXXVIII.— Papilio Evander. 

 Papilio Evander, Godart, Encycl. Meth. ix., p. 32 (1819). 

 Swainson, Zool. Illust. ii., pi. 101. Boisd, Spec. Gen 

 Lep. i., p. 277. 



Larva, a, Full-fed. San Paulo, Jan. 1, 1879. 



I found a cluster of forty or fifty of these caterpillars on 

 the trunk of a Tangierine orange tree on December 30th, 

 1878. At night they separated to feed, returning to the 

 same spot next day. The scent organ is very large, and the 

 odour very strong. I observed that the caterpillar had the 

 faculty of even flinging a tiny drop of fluid from the ends of 



