Black swallowtail butterfly (Papilio polyxenes) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
Inactive black swallowtail butterfly (Papilio polyxenes) in dew in Lick Creek Park. College Station, Texas, May 4, 2010
Black swallowtail butterfly (Papilio polyxenes) on woodoats (Chasmanthium latifolium) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
Ventral surface of Black swallowtail butterfly (Papilio polyxenes) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
Black swallowtail butterfly (Papilio polyxenes) at morning on a stalk of Slender bush clover in Lake Bryan Park. Bryan, Texas, June 2, 2010
Tail area of wings of Black swallowtail butterfly (Papilio polyxenes) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, June 4, 2010
Earlier instar (dark with a white saddle) of Black swallowtail caterpillar (Papilio polyxenes) on an island in Lake Bryan Park. Bryan, Texas, April 22, 2010
Caterpillar of black swallowtail butterfly (Papilio polyxenes) in defensive pose retracting orange horns (osmeterium) and showing three pairs of front legs in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
Black swallowtail butterfly (Papilio polyxenes) on Post Oak Trail at morning in Lick Creek Park. College Station, Texas, June 4, 2010
Disturbed caterpillar of black swallowtail butterfly (Papilio polyxenes) in defensive pose showing orange horns (osmeterium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
Tail part of black swallowtail butterfly (Papilio polyxenes) in Lake Bryan Park. Bryan, Texas, June 2, 2010
Caterpillar of black swallowtail butterfly (Papilio polyxenes) in dew in Lick Creek Park. College Station, Texas, May 4, 2010
Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
