68 RHOPALOCERA. 
secondaries similar to what we find in P. rubecula; but both of these species have 
more ocelli on the secondaries, and, in fact, bear the same relationship to P. rhea that 
P. rubecula does to P. luna. 
The specimens we caught were found in virgin forest, and were usually seen flying 
close to the ground over dead leaves and herbage. When at rest with the wings 
closed they were most difficult to see. 
Our figure and description are taken from the type specimen captured by us in the 
Motagua valley. | 
8. Pierella incanescens. (Tab. VI. figg. 5, 6.) 
Pierella incanescens, Godm. & Salv. P. Z. S. 1877, p. 61°. 
Pierella helvina, Butl. & Druce, P. Z. 8. 1874, p. 337’. 
Alis fuscis leviter purpureo tinctis, anticis fasciis tribus transversis obscurioribus, una prope basin, secunda 
ramum medianum primum attingente, et tertia ad cellule finem, fascia cinerea obliqua ultra cellulam a 
costa ad angulum analem ducta utrinque obscuro marginata, ocello nigro griseo circumcincto ad apicem, 
et tribus punctis albis in linea eadem submarginalibus notatis ; posticis dimidio apicali, preter marginem 
ipsum, sanguineo, ocello magno nigro apud angulum apicalem et serie submarginali punctorum alborum 
ornatis: subtus alis dilutioribus, fasciaque communi obliqua grisea, in posticis dilatata bene distincta, 
colore sanguineo multum dilutiore. 
Hab. Nicaragua, Chontales (Belt & Janson); Costa Rica (Van Patten?, Endres +), 
Trazu (Rogers) ; Panama, Chiriqui (Arcé), Chepo (Arcé '). 
A very close ally of P. helvina of Hewitson from Colombia, from which it differs in 
having the inner band crossing the secondaries less oblique and further beyond the end 
of the cell. The ocelli at the apical angle are larger and more conspicuous, and the 
red colour more extended, approaching nearer to the outer margin. ‘These differences 
are slight, but fairly constant so far as they go; still we should not be surprised to find, 
on the receipt of a larger series of the true P. helvina, that the distinctness of P. in- 
canescens could not be maintained. | 
The ranges of this species and of P. ocreata, next described, are rather singular, the 
latter species occupying a small area cut out, as it were, of the territory of its neighbour, 
being only found on the line of the Panama railway, and as far as the district of 
Santiago de Veraguas in that direction. Forty miles south of Panama at Chepo 
P. incanescens occurs; and from the neighbourhood of Chiriqui, through Costa Rica to 
Nicaragua, this is the only form. Though the close relationship of P. ocreata to 
P. incanescens is obvious, the white spot on the secondaries of the former is so con- 
spicuous and so constant that their recognition is easy. 
We have figured and described a Nicaragua specimen. 
4. Pierella ocreata, (Tab. VI. figg. 7, 8, 9.) 
Pierella ocreata, Salv. & Godm. Ann. & Mag. N. H. ser. 4, ii. p. 143’; Butl. Cat. Sat. B. M. p. 105”. 
