of the Amazon Valley. 235 



by Dr. Felder in his < Lepid. Nov. Columbia).' I believe it, however, 

 to be the opposite sex of Cramer's insect. 



Genus Pieris. 

 Boisd. Sp. Gen. p. 434. 



Section 1. Fore-iving ripper radial as a branch of the subcostal 

 much beyond the cell. 



* Fore-winy third subcostal branch wanting, or extremely short. 



To this division belong the European species, P.Brassicai, Rapce,&c. 



1. P. Demophile, Linn. 



2 • P. Demophile, Linn. Amcen. Acad. vi. 406. GO. 



2 . P. Molpea, Cram. 110 c. 



$. P. Amathonte, Cram. 116 a. b. 



Banks of the Tocantins, Tapajos, and the Upper Amazons ; not 

 found on the Lower Amazons, or in the Delta at Pani. 



2. P. Monuste, Linn. 

 P. Monuste, Linn. ; Cram. 141 f. 

 Cultivated places ; general throughout the country. 



3. P. Ausia, Bdv. 

 P. Ausia, Boisd. Sp. Gen. 531. 137. 

 Tapajos, in company with the following. 



4. P. Phaloe, Godt. 

 P. Phaloe, Godt. Enc. Me"th. ix. 150. 131. 

 Tocantins, Tapajos, and Upper Amazons. Inhabits the thinned 

 parts of the forest. It is not found on the Lower Amazons or at 

 Para. 



5. P. Pyrrha, Cram. 

 c? . P. Pyrrha, Cram. 03 a. b. 

 2 . P. Pamela, Cram. 319 a. 



On the Amazons this species inhabits the same districts as P. 

 Phaloe. It inhabits the shades of the forest ; but the males are 

 found also in open places, and resort to the moist margins of puddles 

 and streams : the females I have never seen, except within the forest ; 

 they are much rarer than the males, and are coloured in imitation of 

 certain Heliconidaa found in the same localities. The species has a 



