PREPONA. 321 
analem ducta, extra cellulam leviter curvata integra paulo sinuosa; maculis obsoletis septem submar- 
ginalibus, illa ad angulum analem duplici. 
Q mari similis, sed major. 
Hab. Guatemata, Polochic valley (Hague), San Isidro (Champion) ; Nicaragua, 
Chontales (Belt, Janson); Costa Rica (Van Patten*); Panama, Volcan de Chiriqui 
and Bugaba (Champion), Calobre (Arcé).—Sovtu America, from Colombia to South 
Brazil. | 
This species in its typical form is widely spread throughout the tropics, from 
Guatemala to South Brazil, and is well represented both by Clerck? and by Hiibner’. 
Cramer’s figure ® shows a somewhat aberrant form in which the under surface of the 
wings are strongly marked with dark blotches; but the essential characters of the true 
P. demophon being all present, we agree with Mr. Bates in placing Cramer’s name as a 
synonym of that of Linnzus °. 
In the true P. demophon the black transverse line which crosses the secondaries 
starts from a point on the costa about one third of its length from the base; this line 
follows roughly the curve of the outer margin, and then turns towards the anal angle; 
it is not abruptly sinuated or broken in its course, and it crosses the median nervure 
almost at right angles. The outer margin of the secondaries is hardly undulating, and 
the outer edge of the blue band of the primaries is but slightly indented. 
It is with reference to these small points that both the species which follow are 
differentiated. 
As in the Amazons region *, Prepona demophon is common in Central America, but 
perhaps more so in the State of Panama than in Guatemala, the northern limit of its 
range. It inhabits forests and second-growth woods, often settling on trees with its 
head downwards. Its flight is powerful and rapid. 
2. Prepona camilla, sp.n. (P. demophon, Tab. XXXI. figg. 9, 10.) 
P. demophonti similis, sed anticarum fascia cerulea extus magis indentata; alis subtus magis ochraceis argenteo 
vix tinctis, anticis fascia bicurvata margini externo subparallela fusca, fascia posticarum transversa magis 
sinuata precipue ad ramos medianos, maculis submarginalibus magis distinctis et margine ipso magis 
sinuato. 
Q mari similis, sed major. 
Hab. Nicaragua, Chontales (Belt); Panama, Bugaba (Champion), Veraguas (Arcé). 
We have several specimens of this form of Prepona demophon, which seem to be 
sufficiently distinct to warrant this separation from that species. Though the typical 
species is variable, the differences pointed out above go beyond the limits we assign to 
it. These will be seen on comparing the figure, representing a male from Veraguas, 
with a specimen of P. demophon. 
BIOL. CENTR.-AMER., Rhopal., Vol. I., June 1884. 27 
