An Act designating the Black Swallowtail as the Commonwealth of Massachusetts official butterfly in honor of William P. Callahan III.
This bill designates the Black Swallowtail butterfly (Papilio polyxenes) as Massachusetts' official butterfly. It directly honors William P. Callahan III, a longtime Massachusetts resident and butterfly enthusiast, while highlighting the species' ecological role as a pollinator and its connection to the state's natural heritage and agricultural history. The designation is symbolic and procedural, with no new regulations or funding.
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