Chicago crime boss Joseph Aiuppa "personally approved" the still unsolved 1983 murder of millionaire insurance executive Alan Dorfman, for many years the middleman between the Mafia and the Teamsters Central States Pension Fund, the government charged yesterday.

Aiuppa, described as the Mafia kingpin not only of Chicago but all points west, also authorized the killing of his predecessor, Sam Giancana, FBI agents said in a series of affidavits filed in a Kansas City U.S. District Court.

Giancana, who was once linked to a CIA scheme to murder Cuban leader Fidel Castro, was most recently portrayed in a television movie called "Mafia Princess," based on one of his daughter's published memoirs. He was found shot to death in his suburban Chicago home on June 21, 1975.

There was widespread speculation then and since that Giancana's death may have stemmed from his involvement in the CIA's assassination schemes, but the FBI agents suggested otherwise.

"Giancana was disliked because he was taking more than 'his cut of the pie' and because he was promiscuous with other members' wives," FBI agent Eugene N. Thomeczek said in his affidavit. "Joey Aiuppa recommended the killing to members of the governing board of the Chicago family who approved it."

Aiuppa's attorney could not be reached for comment.

Thomeczek, who also attributed the murders of Dorfman and a dozen other men in the Chicago and Las Vegas areas to Aiuppa, said his allegations were based on information developed by FBI agents in independent investigations and included information from confidential sources, interviews, surveillances and public records.

The startling allegations were filed as part of a posttrial effort by Justice Department prosecutors to prevent the 78-year-old Aiuppa and three other men from being released on bond following their convictions in Kansas City Tuesday.

They were found guilty, along with Chicago mob captain Joseph Lombardo who is already in prison on other charges, of skimming almost $2 million from Teamster-financed casinos in Las Vegas between 1974 and 1983. The government's chief prosecutor, David B. B. Helfrey, argued that all would pose "a danger to the community" if released on bond and submitted the affidavits to support his motion.

The FBI affidavits did not give any indication of the reason for Dorfman's murder, but FBI Director William Webster suggested at the time that he had been killed to keep him from talking to government investigators after his December 1982 conviction for conspiring with then-Teamsters president Roy L. Williams and others to bribe a U.S. senator.

In another affidavit, former Cleveland Mafia underboss Angelo Lonardo, now a protected government witness, said both Aiuppa and his underboss, Jackie Cerone, 71, who was also convicted in Kansas City, were stern disciplinarians.

"It was their reputation that anybody who did anything wrong, including providing information to the authorities, would be killed," Lonardo said. "At one point, Cerone said the Chicago organization was getting rid of at least one guy a day to keep the people in the organization in line."

FBI agent Ivan G. Harris said this was the reason for another killing that Aiuppa allegedly approved: the 1976 murder of Chicago Mafia soldier Johnny Roselli. Roselli was Giancana's partner in the CIA plots to kill Castro and his body turned up in a Florida bay about a year after Roselli testified about the scheming at secret sessions of the Senate Intelligence Committee.

Harris said his source, a now dead "self-admitted West Coast member of organized crime," stated that Chicago Mafia leaders authorized Roselli's killing and turned the job over to Tampa crime boss Santo Trafficante Jr. Harris said his source also told him "that Joseph Aiuppa was generally dissatisfied with the way the murder of Roselli was done and that the reason Roselli was murdered was because he testified before a number of judicial bodies."