The beetles, which measured four to five inches long, can "pose a significant threat to our vital agriculture resources."

The insects were likely intended to be sold to collectors, as there is a market for exotic insects. "Sold online and underground sources, the illegal trade of exotic insects brings hefty profits for those willing to take the risk of circumventing U.S. laws and regulations," CBP said in a press release on Wednesday.

U.S. Customs and Border Protection officials intercepted dozens of live beetles concealed in Japanese snack packages at the Los Angeles International Airport last month. Agriculture specialists assigned to the airport discovered 37 live beetles hidden inside packages of Japanese snacks,