PIERELLA. 67 
Hetera luna, Hew. Exot. Butt. (Het.) t. i. f. 87; Butl. & Druce, P. Z.S. 1874, p. 337°. 
Pierella luna, Butl. Cat. Sat. B. M. p. 104‘. 
Heitera pallida, Salv. & Godm. Ann. & Mag. Nat. Hist. ser. 4, ii. p. 142°. 
Alis fuscis, anticis plaga certa luce viridescente ornatis, linea communi a costa anticarum ad angulum analem 
posticarum transeunte obscure fusca, aliis valde indistinctis interioribus ; posticis obscurioribus preesertim 
in dimidio apicali, ocellis duobus nigris apud angulum apicalem, superiore majore et albo pupillato: subtus 
alis dilutioribus et fusco irroratis lineisque tribus communibus transversis obscuris notatis, posticis serie 
punctulis submarginalibus albis ornatis. 
Hab. Nicaracua? (Bridges *), Chontales (Belt); Costa Rica (Van Patten?) ; Panama, 
Chiriqui, Veraguas, Calobre (Arcé), Lion Hill (M‘Leannan).—Cotompia; Guana 14, 
The specimens described by Fabricius came from Surinam, and were formerly in 
Drury’s possession. Demerara specimens, identified by Mr. Butler4 with this species, 
are in the British-Museum collection; but the only South-American examples we 
have are from Colombia. These are identical with the insect found in Central 
America as far north as Nicaragua. At one time we separated the Nicaraguan butterfly 
under the name of Hetera pallida ®, as all the specimens we had then received from that 
country were very pale-coloured and resembled Hewitson’s figure *, which, it must be 
admitted, represents a much paler insect than usual. The receipt of more specimens 
from that country, in no way differing from the Panama and Colombian form, has led 
us to the conclusion that P. pallida can hardly be considered the distinct race we once 
supposed it to be; and we therefore now reunite it with P. luna. 
The nearest ally of P. /una in South America is perhaps P. rhea, of which P. lamia 
is a local race. This species differs from it in having, in addition to the ocelli of the 
apical angle of the secondaries, a submarginal row of similar ocelli round the outer 
margin of those wings. PP. hyceta and P. latona also belong to the same group, as 
well as P. astyoche. 
We have described a male Nicaraguan specimen of the typical form. 
2. Pierella rubecula, (Tab. VI. figg. 10, 11.) 
Pierella rubecula, Salv. & Godm. Ann. & Mag. N. Hist. ser. 4, ii. p. 142°. 
P, lune similis, sed posticarum dimidio apicali, preter marginem ipsum, rufo lavato. 
Hab. Mexico (Sallé), Oaxaca (Deppe, Mus. Ber.); GuatemMaLa, Yzabal and Motagua 
valley (F. D. G. & O.S.), Polochic valley (Hague). 
This race of P. /una differs from the southern form in having a large rufous patch 
on the exterior half of the secondaries; the two apical ocelli are large, and frequently 
both are pupillated. It appears to be the local race in Mexico and Guatemala of 
P. luna, and entirely supplants that species in those countries. In South America two 
other species, P. hyceta and P. latona, show a development of rufous colour on the 
K2 
