Entertainer Merald (Bubba) Knight, a member of the rythmn and blues musical group Gladys Knight and the Pips, has been missing since Monday after the group completed an engagement in Baltimore County, Maryland State Police reported yesterday.

According to police, Knight not only missed the plane that took the rest of the musical group back to Detroit, state police said.

Knight disappeared after the group had completed a week-long engagement at the Painters' Mill Music Fair in Owings Mills, Md.

On Monday, when the rest of the group was preparing to leave on a flight from Washington National Airport to Detroit for a recording session, Knight called his sister Gladys, lead singer of the group, and told her he had slept late, police said.

According to police, Knight asked his sister to leave his plane ticket at the desk of the Pikesville Hilton Hotel, where the group was staying. Police said he later checked out of his room and took a taxicab to National Airport.

Police said they have been able to confirm that Knight paid the taxicab driver $28 of the $30 he was said to have had in his possession, and got out at the airport.

Passenger data was not immediately available from the airline, police said, and so investigators have not yet been able to determine whether Knight took a flight to Detroit.

Kelly Swaggerty, the group's tour manager, described Knight as usually punctual and said he always calls when hs is late.

The Grammy Award-winning Pips are composed of Gladys Knight, 32, William Guest, 35, Edward Patten, 37, and Knight, 34.

Knight is married and lives in chesterfield, Mich.