The Asian Citrus Psyllid (Diaphorina citri) is a true bug (Hemiptera) in the family Liviidae of the superfamily Psylloidea.
Originally native to southern Asia, the Asian Citrus Psyllid. has spread to the Arabian Peninsula, islands in the Indian Ocean and much of the New World tropics and subtropics including South America, Central America, the Caribbean, Mexico, and the United States (including Arizona, California, Florida, Georgia, Louisiana, South Carolina, and Texas).
Diaphorina citri feeds on several genera of the Rue Family (Rutaceae) including Citrus, Murraya, and Severinia. Besides damaging plants with their sucking mouthparts, these insects can also spread Candidatus Liberibacter asiaticus the bacteria that causes Citrus Greening Disease, also known as huánglóngbìng (HLB). There is also evidence that they can spread Citrus Tristeza Virus (CTV) as well.