234 MR. H. DRUCE ON PERUVIAN BUTTERFLIES. [Feb. 1, 



4. P. chrysophana, Bates, Ent. Mo. Mag. iii. p. 152 (1866). 

 Yurimaguas (Bartlett). Mus. D. 



5. P. nessus, Latr. {Nymp. n.) Humb. Bonp. Obs. Zool. ii. p. 76, 

 t. 35. f. 5, 6 (1811-23). 



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



6. P. tyrianthina, Salv. & Godm. Ann. Nat. Hist. ser. 4, vol. ii. 

 p. 148. n. 17 (1868). 



Huasampilla (//. Whitehj). Mus. D. 



7. P. glycerium, Doubl. & Hew. Gen. D. L. t. 50. f. 1 (1850). 

 Nauta {Bartlett). Mus. D. 



8. P. xenocles, Westw. Gen. D. L. p. 319. n. 11, note (1850). 

 Huasampilla (H. Whitehj). Mus. D. 



9. P. xenocrates, Westw. I. c. n. 13. 



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



10. P. morvus, Fabr. {Pap. m.) Syst. Ent. p. 484 (17/5). 

 Nauta {Bartlett). Mus. D. 



11. P. glauce, Feld. {Nymp. g.) Wien. ent. Mon. vi. p. 119 

 (1862). 



Valley of Cosnipata (//. Whitehj). Mus. S. G. & D. 



12. P. phantes, Hoff. Stett. ent. Zeit. 1874, p. 353. n. 57. 



Peru {Dr. Staudinger). Mus. D. 



A very distinct species. 



13. P. alberta, ii. sp. (Plate XVIII. fig. 6.) 



Upperside blue-black ; anterior wing with the base, a large spot 

 crossing tbe wing at the apex, and two smaller spots near the anal 

 angle, greyish blue ; posterior wing thickly irrorated with greyish 

 blue. Underside glossy brown, thickly speckled with dark and light 

 brown markings. 



Exp. 2f inches. 



Peru. Mus. D. 



14. P. cyanea, Salv. & Godm. Ann. Nat. Hist. ser. 4, vol. ii. p. 



148 (1868). 



Valley of Cosnipata {H. Whitehj). Mus. S. G. 



15. P. appias, Hiibn. {Cor. a.) Samml. exot. Schmett. (1816-41). 



Ucayali {Bartlett). Mus. S. G. 



" The species of this genus are generally found about (he river- 

 banks, near villages and forest-streams." — E. B. 



