An Act designating the Black Swallowtail as the Commonwealth of Massachusetts official butterfly in honor of William P. Callahan III

Introduced

In Committee

Floor

Crossed Over

Passed

Enacted

Overview Bill text 1 History 5 Sponsors

By Representative Donahue of Worcester, a petition (accompanied by bill, House, No. 3320) of Daniel M. Donahue and Angelo J. Puppolo, Jr., for legislation to designating the Black Swallowtail as the official butterfly of the Commonwealth. State Administration and Regulatory Oversight.

Chamber: House
Introduced: Feb 27, 2025
Last action: Mar 2, 2026 — Accompanied a study order, see H5168
Session: 194th
Momentum: 30 · Low

PASSAGE PROBABILITY

1% Unlikely

Why this number

Stage base In Committee — base rate 4%, measured from MA's completed sessions
Momentum -4 30/100 from the pace of recorded action
Time since last action -22 227 days quiet

A transparent scoring model over stage, momentum, recency, sponsorship and recorded votes — not a trained predictor. Treat it as a way to rank attention, not as a forecast.