On May 24, when the on-site customs officer of the Jinling Customs Office in the Post Office of Jinling Customs under Nanjing Customs carried out X-ray machine inspection of incoming mail, he found that an email image showed abnormalities, and there were signs of suspected large insect activity. According to the identification of Nanjing Customs Animal and Plant Food Testing Center, the 6 insects are 4 females and 2 males of the Japanese spade dolcus hopei binodulosus.

Live Japanese spade nails seized by the Jinling Customs Office in the Post Office
Japanese spade armor, mainly produced in Japan, is large, aggressive, generally 20-76mm long, and the male has a well-developed upper jaw, resembling antlers.
Customs reminds that live insects as alien species may cause biological invasion, and are easy to carry animal and plant epidemics and harmful organisms into the country, quarantine risk is high, according to the "People's Republic of China On the Quarantine of Animals and Plants Entering and Leaving the Country" and the implementation regulations, "the People's Republic of China prohibited from carrying, mailing into the territory of animals and plants and their products", it is prohibited to enter the country by carrying and mailing.