Friday, August 22, 2014

Pipevine Swallowtail

Along the Rio Grande last February in the Big Bend National Park, Erika and I found a new butterfly for our list—a Pipevine Swallowtail. The species tends to be an early flier in the spring. In regions without frost, adults may fly all year. The species is named for pipevines (Aristolochia), plants that their caterpillars favor. Adults feed on nectar of a wide range of flowering plants (

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