While PNG has been a CITES signatory since 1975, C. insculpta have only recently, earlier this month, been amended to CITES, with an appendix II listing, allowing for export in very limited numbers by permit only.
C. insculpta currently within the US will not require permits for interstate commerce, until such time the species is amended to appendix I listing. However, it will be illegal to bring specimens into the US without proper CITES permits and documentation.
For a complete list of CITES listings, you may view such at the following link:

http://www.cites.org/eng/append/appendices.shtml

Best regards,

Jeff Snodgres
University of Arkansas
snodgresjeffreys@uams.edu
501.526.4856