Genus Dione 
Genus DIONE, Hubner 
(Agraulis, Boisd.-Lec.) 
Butterfly.—Head large, the antennae moderately long, with 
die club flattened; the tip of the abdomen does not extend 
beyond the inner margin of the hind wings; the cell of the hind 
wings is open; the primaries are elongated, nearly twice as long as 
broad, with the exterior margin excavated; the secondaries at the 
outer margin denticulate. The prevalent color of the upper side of 
the wings is fulvous, adorned with black 
spots and lines, the under side of the wings 
paler brown, in some of the species laved 
with pink and brilliantly adorned with large 
silvery spots, as in the genus Argynnis. 
Egg. — Conoidal, truncated on top, with 
fourteen ribs running from the apex to the 
base, between which are rows of elevated 
striae, causing the surface to appear to be 
covered with quadrangular pits. 
Larva. —The caterpillar is cylindrical in 
its mature stage, tapering a little from the 
middle toward the head, which is some¬ 
what smaller than the body. The head and 
Fig. 87.—Neuration of the eac h segment of the body are adorned with 
& branching spines. 
Chrysalis. —The chrysalis is suspended, and has on the dorsal 
surface of the abdomen a number of small projections. At the 
point where the abdominal and thoracic segments unite on the 
dorsal side there is a deep depression, succeeded on the middle 
of the thorax by a rounded elevation composed of the wing-cases. 
At the vertex of the chrysalis there is a conical projection; on the 
ventral side the chrysalis is bowed outwardly. 
This genus is confined to the New World, and contains five 
species. It is closely related to the genus Colcenis on the one 
hand and to the genus Argynnis on the other. It is distinguished 
from Colcenis by the more robust structure of the palpi, which 
closely approximate in form the palpi of the genus Argynnis. It 
is distinguished from the species of the genus Argynnis by the 
form of the wings and by the open cell of the secondaries. The 
larva feeds upon the different species of the genus Passiflora , 
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