Papilionidae (Mexican Bluewing
Family: Brush-footed Butterflies Identification: Forewing apex is truncated.
Upperside is black with iridescent blue bands; outer half of forewing
has white spots. Life history: Young caterpillars make a resting perch
by attaching dung pellets and silk to a leaf vein. The adults rest on
tree trunks with wings closed, exposing their undersides which look like
bark. Wing span: 2 1/2 - 3 inches (6.4 - 7.6 cm). Habitat: Stream valleys
with dry scrub or scattered tropical forest.