The stepmother of a girl who disappeared in 2019 at age 5 has been charged with welfare fraud for collecting food stamps in her name, the New Hampshire attorney general’s office said Thursday. Kayla Montgomery, 31, of Manchester, has been charged one with one count of welfare fraud on suspicion of obtaining $1,500 in food stamps from December 2019 to June 2021 for Harmony Montgomery, even though the girl was not living with Kayla and her husband, Adam Montgomery. Kayla Montgomery pleaded not guilty in Hillsborough County Superior Court. Her lawyer asked that she be released on her own recognizance. The judge agreed to a prosecutor’s request for $5,000 bail, ruling that Montgomery, who has a misdemeanor criminal record, must check in daily in person with Manchester police. Adam Montgomery, 31, was charged Wednesday with several counts, including failing to have Harmony in his custody. His lawyer entered not guilty pleas on his behalf. He has been jailed without bail.