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Show 384 MESSRS. SALVIN AND GODMAN ON VARIATION [June 5, through the cell to near the outer margin pale cream-colour; the inner margin and the fringe cream-colour ; secondaries pale buff, in some specimens almost white, with the outer margin brownish black: head and thorax black ; abdomen dark bluish green ; antennae black ; legs metallic green. Expanse 1 \ inch. Hab. Ecuador, Chiguinda (Buckley). This species is closely allied to H. nantana, Walker, its chief difference being the colour of the secondaries. I have a good series of specimens of both sexes before m e ; they do not show the faintest trace of carmine in the hind wings. EXPLANATION OF THE PLATES. PLATE XXXIX. Fig. 1. Eupyra her odes, p. 372. 2. cephalena, p. 372. 3. Calonotos flavicornis, p. 373. 4. Isanthrene thyestes, p. 374. 5. Homceocera buckleyi, p. 374. 6. • ozora, p. 374. Fig. 7. Erruca lycopolis, p. 375. 8. Sphecosoma surrentum, p. 375. 9. Dycladia felderi, p. 377. 10. chalonitis, p. 378. 11. Eunomia ocina, p. 379. 12, Argyroeides boliviana, p. 379. PLATE XL. Fig. 1. Charidea bertha, p. 381. 2. imperialis, p. 380. 3. cleasa, p. 380. 4. buckleyi, p. 381. 5. Zatrephes grandis, p. 383. 6. Evius polyxenus, p. 383. Fig. 7. Aidomolis asara, p. 382. 8. superba, p. 382. 9. Zatrephes buckleyi, p. 383. 10. chaon, p. 383. 11. Androcharta cassotis, p. 382. 5. Note on the Variation of certain Species of Agrias. By F. D. GODMAN, F.R.S., and O. SALVIN, F.R.S. [Received May 5, 1883.] Since writing our paper ou Agrias stuarti (P. Z. S. 1882, p. 338, t. 19), M r . A. Maxwell Stuart has again visited the Amazons, and at Yquitos, where he captured the original type, has succeeded in taking four more specimens, three males and one female, of this magnificent Butterfly, all of which he has most generously placed in our collection. Noticing considerable variation in the series thus acquired, and hearing that Dr. Staudinger had also recently received two specimens from his excellent collector, Dr. Hahuel, from Pebas on the Amazons, we wrote to the former gentleman asking him if he would kindly allow us to see his specimens. These, together with two of A. phalcidon, which will be referred to below, he has most obligingly sent us. Thus, with the type of A. beatifica in the British Museum and the female described in our paper from our own collection, we have before us seven males and two females of these insects. The characters on which we relied in separating A. stuarti from A. beatifica were the greater extent of the purplish-blue colour at |