Fill your herb garden with black swallowtail butterflies. Learn what the caterpillar, eggs and adult butterflies look like.

The British swallowtail butterfly (Papilio machaon britannicus) is the U.K.'s only native swallowtail and its largest native butterfly. It's instantly recognizable by its striking light ...

A research team has identified a new species of tiger swallowtail butterfly living in eastern parts of North America. In their study, published in the journal ZooKeys, Julian Dupuis, B. Christian ...

Have you spotted a Monarch or Black Swallowtail butterfly this summer? There are ways to attract and support them in your ...

North Carolina’s state butterfly is hard to miss — and also easy to attract to backyards by planting a variety of native plants. The Eastern Tiger Swallowtail (Papilio glaucus) can be bright yellow ...

A black swallowtail caterpillar spends weeks doing little besides eating dill and other carrot-family plants, but this ...

The lime swallowtail butterfly — an invasive species that hails from Asia and which has damaged citrus trees throughout the Caribbean for nearly 20 years — has reached Florida. The butterfly is fairly ...

Finding that Norfolk butterfly has been distinct subspecies for 200,000 years could transform conservation approach The endangered swallowtail butterfly Papilio machaon britannicus, which is only ...