Old World swallowtails can easily be bred in captivity.

The Old World Swallowtail has many different forms.

It's the main foodplant for Old World Swallowtail.

The old world swallowtail caterpillar developed resistance to these poisonous substances, thus reducing competition with other plant-eating insects.

Old World swallowtail (Papilio machaon)

The Old World Swallowtail (Papilio machaon) is a butterfly of the family Papilionidae.

Old World Swallowtail (Papilio machaon) has similar shape and coloring, however, caterpillar has very different coloring.

An example of antagonistic coevolution is the old world swallowtail (Papilio machaon) caterpillar living on the fringed rue (Ruta chalepensis) plant.

Among the rare insects are the Norfolk hawker, a dragonfly and the Old World Swallowtail butterfly ('Papilio machaon' subsp.

In North Dakota and southern Manitoba, the Black Swallowtail is thought to breed with the Old World Swallowtail.

Its wings have concave spots that are scalloped inwards with a reddish-orange eyespot along the lower border, similar to, but smaller than, the eyespot of the common Old World Swallowtail.

Despite this similarity, an analysis of the Ozark Swallowtail's mitochondrial DNA suggests that it is actually more closely related to the Old World Swallowtail (Papilio machaon).

He suggested that even though the Ozark Swallowtail looks exactly like the Black Swallowtail, it is actually more closely related to the Old World Swallowtail (Papilio machaon).

Old World swallowtail (Papilio machaon)

The Old World Swallowtail (Papilio machaon) is a butterfly of the family Papilionidae.

Swallowtail (Maltese subspecies) Papilio machaon ssp.

Old World Swallowtail (Papilio machaon) has similar shape and coloring, however, caterpillar has very different coloring.

Papilio hospiton is similar to Papilio machaon, but the wings are more rounded, and the hindwing is provided with a short tooth instead of a tail.

An example of antagonistic coevolution is the old world swallowtail (Papilio machaon) caterpillar living on the fringed rue (Ruta chalepensis) plant.

Among the rare insects are the Norfolk hawker, a dragonfly and the Old World Swallowtail butterfly ('Papilio machaon' subsp.

Papilio alexanor is similar to Papilio machaon however, the basal third of the forewing is not entirely black, but bordered basally and distally by a broad black band.

An extremely similar-appearing species, Papilio joanae occurs in the Ozark Mountains region, but it appears to be closely related to Papilio machaon, rather than P. polyxenes.

Despite this similarity, an analysis of the Ozark Swallowtail's mitochondrial DNA suggests that it is actually more closely related to the Old World Swallowtail (Papilio machaon).

He suggested that even though the Ozark Swallowtail looks exactly like the Black Swallowtail, it is actually more closely related to the Old World Swallowtail (Papilio machaon).

The subspecies found at Strumpshaw, Papilio machaon brittanicus, is isolated to the Fens of Norfolk and Suffolk in the UK, although widespread and often common throughout Europe.

Protected insects include Saga pedo, Mantis religiosa, Papilio machaon, Iphiclides podalirius, Ascalaphus macaronius, Lucanus cervus, Parnassius mnemosyne and others.

A few of the more evident species are lime butterfly Papilio demoleus demoleus, common yellow swallowtail Papilio machaon, common mormon Papilio polytes romulus, spangle Papilio protenor protenor and common blue apollo Parnassius hardwickei.