An Armored Scale Abgrallaspis narainus (Dutta & Singh) is describe. This species infest many ornamental, Agriculture, Horticulture plants and economical trees. Abgrallaspis narainus (Dutta & singh) is a serious pest of Dalbergia sissoo, Musa paradisiaca, Carica papaya, etc. It causes leaf blad disease on host plant. Population study have been observed on Dalbergia sissoo counting was done by sampling method which was describe by Mc clure (1977). Minimum population of Abgrallaspis narainus in rural area is 1:1.10 and Maximum in urban area 1: 1.12. This difference of population in rural and urban areas may be accounted for increasing population in the urban localities. Seasonal variations have been observed in winter (Jan & Feb) and Minimum population is observed in leaf fall seasons.