Costa, Esmeralda (Medeiros), of Somerville, July 31st. Devoted wife of Antonio Costa. Loving mother of Michael Costa and his wife Rosa and Steve Costa. Cherished grandmother of Christina and Adriana Costa. Beloved sister of Marie Correia, Fatima Tavares, Marie DelloRusso, Emanuel and Gabriel Medeiros. Also survived by nieces, nephews, other loving relatives and friends. Funeral from the Rogers Funeral Home, 380 Cambridge St., Cambridge Monday at 8 am. Funeral Mass in St. Anthony’s Church, Cambridge at 9 am. Visiting hours Sunday from 1 to 5 pm.