of the Amazon Valley. 345 
Papilio Nestor, Linn. 8. N. ii. 752. n. 40, 2. 
——, Cram. 194, B. 
A very common insect in the forests of Pard and the Lower 
Amazons, as far as the mouth of the Madeira. It has a low flight, 
moving quickly along the alleys cut through the moist woods, and 
settling on leaves or on the ground where fruit has fallen. 
176. Morpho Nestira, Hubner. 
P. Nestira, Hiibn. Samm. exot. Schmett. 3. 
This is distinguished from M. Menelaus by the broadish black 
border to the fore wings in the male, and the black base of the wings 
in the female. It is a local form of the same stock, and entirely re- 
places M. Menelaus in the forests of the Upper Amazons, where it is 
very abundant. 
177. Morpho Achilles, Linneeus. 
Papilio Achilles, Linn. Mus. Lud. Ulr. p. 211. 
, Clerck, Icones, t. 24. f. 3, 4. 
Morpho Achilles, Guenée, Ann. Soe. Ent. Fr. 1859, p. 369. 
Papilio Helenor, Cramer, 86 A, B. 
, Cramer, 373 c (aberration). 
Still more common than M. Menelaus, and found everywhere in 
the forests of the Amazons, and at all seasons. It has similar habits 
to those of WM. Menelaus. A few examples occurred near Para, in 
which the blue colour extended to the base of the wings, so that 
they were scarcely distinguishable from the local form M. Helenor 
(Herbst & Guenée) of Southern Brazil. 
178. Morpho Deidamia, Hiibner. 
Morpho Deidamia, Hubner, Verzeichniss bekannt. Schmett. 
—— ——, Guenée, Ann. Soe. Ent. Fr. 1859, p. 372. 
Papilio Achilles, Cramer, 27 a, B, 28 A. 
I met with this elegant species only at Pard, where it was rare. 
The female agrees with the male in colours; and in both the base of 
the wings is blue, although of a darker shade than on the disk. The 
habits and mode of flight are the same as in M. Menelaus and M. 
Achilles. 
179. Morpho Neoptolemus, n. sp. 
Similar to M. Deidamia. Fore wing less produced, and pointed at the 
apex. ‘The under side is the same, with the exception that the anal ocellus 
is geminated, there being two black pupils with white centre points, sur- 
rounded by the common yellow iris. The upper side differs in the basal 
2c2 
