There was no updated phone number listed for Archbold in West Palm Beach.
"We feel terribly awful," said store owner Ben Siegel, who added that Archbold did not appear to be sick before the contest. "He looked like he just wanted to show off and was very nice," Siegel said, adding that Archbold was "the life of the party."
Siegel said Archbold was selling the exotic prize to a friend who took him to the contest.
The grand prize has been put aside in Archbold's name and will be given to his estate, Siegel told the AP.
A statement from Siegel's attorney said all the participants signed waivers "accepting responsibility for their participation in this unique and unorthodox contest."
The bugs consumed were from an inventory of insects "that are safely and domestically raised in a controlled environment as food for reptiles."