This species was intercepted at U. S. ports-of-entry 24 times between 1995 and 2012, with specimens originating from Mexico, and Puerto Rico. We also have examined specimens taken in quarantine from Mexico (Sedum). ScaleNet lists hosts in Crassulaceae and Fabaceae, but it is most commonly intercepted on rosemary and sage (Lamiaceae– Mint family). ScaleNet distribution records for P. mexicanus include only Mexico. Several species of Paracoccus other than P. brunerae (Brain), P. ferrisi Ezzat & McConnell, P. herreni Williams & Granara de Willink, P. interceptus Lit, P. lycopersici Ezzat & McConnell, P. marginatus Williams & Granara de Willink, P. mexicanus and P. solani Ezzat & McConnell have been intercepted at U. S. ports-of-entry including: P. hamoni Williams and Granara de Willink (Mexico, on Cephalocereus); P. circuliprivis Ezzat and McConnell (Mexico, on Thomsoniella); P. invectus Williams (Thailand and India, on orchids, including Dendrobium); and P. reductus Ferris (Mexico, on Yucca).