Sentencing has been delayed for a Hartsdale man convicted of killing his mother by neglect, officials said Wednesday.

James Austin, 47, was too ill to appear in court in White Plains and will now appear before Judge Robert Neary on Nov. 28, said Lucian Chalfen, spokesman for Westchester County district attorney.

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Austin was convicted of second-degree manslaughter in June after a jury trial in which prosecutors argued Austin ignored his ailing mother as she lay dying in the home they shared on Chatterton Parkway. He faces up to 15 years in prison.

Town of Greenburgh police found the body of 71-year-old Ida Austin in July 2011 and said she was emaciated and covered in maggots, excrement and urine and surrounded by garbage. An autopsy found Ida Austin died of starvation, dehydration and infection, and prosecutors argued that her son gave up on caring for her.

James Austin's attorney maintained at trial that his failure to seek medical help for his mother was in line with her wishes, and that Ida Austin's belief in Santeria -- a religion with roots in Africa, with deities linked to the Roman Catholic saints -- caused her to reject traditional medical care.