NOTES ON THE BUTTERFLIES


20. CATOPSILIA PHILEA (Linn).
 This is the largest and the most handsome of
all the Catopsilias found in the Colony. Its flight
is rapid and strong. It is found commonly
throughout the Colony and appears to have no
regular time of appearance, but is always seen
in greater numbers during the dry months of
April, May and June.
 All the members of the Catopsilia family, that
is the males, love to congregate on patches of
moist sand or at the margins of muddy pools of
water. Associated with them here will be found
other butterflies also enjoying the feast, such as
Appias, Papilio, Gonopteryx, Lycenids, Hesperids
and others, but I have never observed any member
of the Heliconid or Danaid family present at these
gatherings. These patches of resting butterflies,
which often contain many hundreds packed close
together, often cover an extent of five or six feet,
and give one the impression of beds of yellow and
white flowers.
 With the exception of the Papilios all these butter-
flies remain with wings close together and motion-
less. Only the Papilios exhibit the characteristic
and constant quivering of their wings. These
assemblies are always composed of the male insects.
21. CATOPSILIA BOISDUVALII (Feld).
 I have only met with this insect in the extreme