State Representative Alice Wolf of Cambridge on Thursday became the fourth female member of the Legislature to say she will not seek reelection in the fall.
Wolf, 78 and in her eighth term, plans to retire.
A cochairwoman of the Joint Committee on Elder Affairs, Wolf e-mailed her supporters.
“After 16 years in the House, it is time to move on to new challenges,’’ she said. “I will be looking at options that allow me to stay engaged furthering the progressive values and humane policies that I have championed.’’
Before joining the Legislature in 1997, Wolf was a Cambridge mayor, city councilor, and School Committee member.
Women, while 51.6 percent of the state population, account for 24.5 percent of the Legislature.
Senator Susan Fargo, Democrat of Lincoln, and Representatives Harriett Stanley, Democrat of West Newbury and Geraldine Creedon, Democrat of Brockton, do not plan to seek reelection.
The House has two vacant seats left after William Brownsberger, Democrat of Belmont, won election to the Senate and Vincent Pedone, Democrat of Worcester, took a higher education advocacy job.
Some of Wolf’s current and former colleagues took to Twitter Thursday to pay tribute to her.
Kathi-Anne Reinstein, Democrat of Revere, tweeted, “Alice Wolf is a passionate and hardworking woman!’’
Wolf is married with two children. She graduated from Simmons College in 1955 and earned a master’s degree in public administration from Harvard University’s John F. Kennedy School of Government in 1978.