of the Amazon Valley. 201 
distinct groups in regard to their style of coloration and habits; for 
whilst the Hunice are of tolerably uniform dark colours, with females 
of duller hue, and spotted with white at the apices of their wings, the 
Epicalic have brilliant and strongly contrasted colours in both sexes. 
The males of the EHunicw resort in crowds to the banks of streams, 
retiring in the evening to the crowns of the forest-trees, where the 
females reside ; but the Hpicalie are true forest-dwellers, the males 
being seen sporting in gleams of sunlight which penetrate the dense 
shades, and the females wandering amongst the lower trees. I bred 
one species of this genus, #. Acontius: the larva is ight green, with 
steel-blue head, and is armed with branched spines, two of which on 
the head are of great length and verticillate: the pupa is ight green, 
varied with pink, and has the back of the thorax deeply excavated 
and irregular in outline. In form and armature the larva agrees 
with those of the Callithee. The sexes in one section of the genus 
(Z. Acontius and allies) are so dissimilar in the form as well as in 
the colour of the wings, that they were long held to belong to different 
genera—quite an excusable error, for in-no group does the divergence 
in appearance between male and female attain such great proportions. 
All doubt upon the subject, however, was removed by my capturing 
the sexes of two of the species in copuld. 
39. Epicalia Capenas. 
Cybdelis Capenas, Hewits. Exot. Butt. Cybd. f. 16, 17. 
Upper Amazons; in open sunny places in the forest. The female 
differs from the male only in being duller in colour, in two of the 
hind-wing ocelli having blue pupils, and in the fore wings being 
destitute of blue spots. 
40. Hpicalia Hewitsonii, Felder, Lepid. Frag. p. 13, pl. 5. f. 1. 
Upper Amazons, at St. Paulo, and in the district lying near the 
Peruvian and Brazilian frontiers. It flies in company with E. ancea 
in moist parts of the forest. 
41. Epicalia Batesii, Felder, Lepid. Frag. p. 57, pl. 10. f. 3. 
The male (the only sex known) of this species differs from that of 
E. ancea in the inner margin of the blue belt being strongly curved 
outwards, and in the orange belt of the hind wings being much ab- 
breviated and dilated in the middle. Two examples in my collection 
differ in the underside of the hind wings from #. ancea, and from 
the specimen of H. Batesii figured by Dr. Felder, in wanting the 
