A research team has identified a new species of tiger swallowtail butterfly living in eastern parts of North America. In ...

It’s a diverse family, with more than 500 swallowtail butterfly species fluttering over six continents. Most are tropical, ...

The spiny caterpillar feeds at night on violets. One of the most spectacular of all North American butterfly species, this swallowtail’s singular tiger stripes and large size make it ...

Just as monarchs famously prefer milkweed for food and egg-laying, swallowtail butterflies also have a preferred food as ...

One of the rarest butterflies in the country, the Schaus’ Swallowtail Butterfly, is benefitting from an event many people dread. A new study from the Florida Museum of Natural History shows hurricanes ...

Sometimes, nature’s surprises come with wings. In a new study, scientists pulled from a 35-year dataset to examine long-term ...

In the northeastern United States and southeastern Canada, species of tiger swallowtail butterflies typically have a flight period in the spring, but there was a group that appeared around the ...

The settlement prompting today’s proposal set Endangered Species Act listing proposal deadlines for the Fluminense swallowtail, Harris’ mimic swallowtail, and five other foreign bird and butterfly ...