The family Pseudococcidae or mealybugs (Hemiptera) are common pests in tropical region of the world and also considered as important pests on ornamental plants and fruit trees. The mealybug faunas in Cambodia and Laos were known to nineteen species and eight species, respectively (ScaleNet, 2014; CABI, 2015; FAO-IPM, 2014). Recently, we have collected thirteen mealybug species in Cambodia and Laos. Among them, seven species of mealybug are found for the first time: Phenacoccus solani (Ferris, 1918) and Rastrococcus iceryoides (Green, 1908) in Cambodia; Dysmicoccus neobrevipes (Beardsley, 1959) and Phenacoccus solenopsis (Tinsley, 1898) in both counties; Paracoccus invectus (Williams, 2004), Planococcus minor (Maskell, 1897) and Pseudococcus jackbeardsleyi (Gimpel & Miller, 1996) in Laos.

• Pheophanh Soysouvanh(Department of plant Medicine, Sunchon National University)
• Soo-Jung Suh(Plant Quarantine Technology Center, Animal and Plant Quarantine Agency)
• Ki-Jeong Hong(Department of plant Medicine, Sunchon National University)