Swallowtail butterfly black swallowtail is the state butterfly of Oklahoma. Swallowtail butterfly Swallowtail butterflies are large, colorful butterflies in the family Papilionidae, and include over 550 species. Though the majority are tropical, members of the family inhabit every continent except Antarctica. The family includes the largest butterflies in the world, the birdwing butterflies of the genus "Ornithoptera". Swallowtails have a number of distinctive features; for example, the papilionid caterpillar bears a repugnatorial organ called the osmeterium on its prothorax. The osmeterium normally remains hidden, but when threatened, the larva turns it outward through a transverse dorsal groove by inflating it with fluid.
Swallowtail shiner Swallowtail shiner The swallowtail shiner ("Notropis procne") is a North American species of freshwater fish in the Cyprinidae family. It has a slender and long body of about 40–55 mm. The shiner has a pale yellow back with a blue stripe on its silver side. It also has a silvery white belly. Its fins are yellowish and it has a dorsal fin originating above the back half of the pelvic fin base and a tail fin with a black spot at its base. Its snout is either slightly pointed or slightly rounded. The swallowtail shiner lives in warm creeks and