1876.] MR. H. DRUCE ON PERUVIAN BUTTERFLIES. 243 



2. C. ciPRis, Fab. {Pap. dp.) Ent. Syst. iii. I. p. 212 (1793). 

 Valley of Cosnipata {H. Whitely). Mus. D. 



3. C. RURiNA, Feld. Wien. ent Mon. v. p. 82 (1861). 

 Huiro ad alt. 4800 ped., valley of Santana (H. Whitely). 



Mus. D. 

 One specimen only. 



4. C. PHiLEA, Linn. {Pap. ph.) Syst. Nat. i. 2. p. 764 (1776). 



Upper Ucayali {Bartlett). Mus. U. 



" Not common."—^. B. 



5. C. ARGANTE, Fab. {Pap. a.) Syst. Ent. p. 470 (1775). 



Upper and Lower Ucayali {Bartlett). Mus. S. Gr. & D. 



" Very abundant."—^. B. 



6. C. TRITE, Linn. {Pap. t.) Syst. Nat. i. 2. p. 763 (1766). 

 Upper Ucayali {Bartlett). Mus. D. 



7. C. STATiRA, Cram. {Pap. s.) Pap. Exot. ii. t. 120. f. C, D (1779). 

 Upper and Lower Ucayali {Bartlett). Mus. S. Gr. & D. 

 " The species of this genus are very abundant at certain seasons ; 



they may be found by thousands on mud-banks of rivers, mingled 

 with Pieris, Papilio, and others." — E. B. 



Genus Pieris, Boisd. 



1. P. DEMOPHILE, Linn. {Pap.d.) Syst. Nat. i. 2. p. 761 (1767). 

 Nauta and Upper Ucayali {Bartlett). Mus. D. 



2. P. pisoNis, Hew. Exot. Butt. ii. t. 6. f. 40, 41 (1861). 

 Nauta and Upper Ucayali {Bartlett). Mus. S. Gr. & D. 



3. P. DIANA, Feld. Wien. ent. Mon. v. p. 81 (1861). 



Nauta {Bartlett). Mus. D. 



" Pieris is generally distributed over the whole of East Peru ; and 

 some of the species are extremely common on the mud-banks of the 

 rivers, where they assemble in patches of hundreds together. It is 

 puzzling to the traveller what becomes of the females. The whole 

 of the four years I was in Peru I only obtained about six females of 

 all the species of the genus Pieris ; the males I collected by hundreds." 

 —E. B. 



Genus A.ppias, Hiibn. 



1. A. iLAiRE, Godt. {Pap. I.) Enc. Meth. ix. p. 142 (1819). 



Nauta {Bartlett). Mus. D. 



" Very common." — E. B. 



2. A. DRusiLLA, Cram. {Pap. d.) Pap. Exot. ii. t. 207. f. C (1779). 

 Valley of Cosnipata {H. fVhitety). Mus. D. & S. G. 



16* 



