The Tiger Swallowtail
One
of North America's most familiar butterflies is the tiger swallowtail.
It is well-named for its vertical black stripes on yellow wings. The females
have two color forms -- one black and yellow like the male, the other
has all-black wings. This butterfly is found in parks, woodlands and suburban
gardens. They nectar at lilac, buttonbush, thistles and milkweed. The
caterpillars feed on wild cherry, basswood, birch and tulip trees. They
are bright green with two orange eyespots and a yellow band, but may be
difficult to find as they feed high in treetops and make a shelter by
folding the edges of the leaf together.
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