Insects are highly diversified in any ecosystem in which coffee plant can exist, but not wellrnrecorded under different coffee production systems in different seasons and different coffee treernshade status in Jimma southwest of Ethiopia where Coffeae arabica L. originated. Thus, thisrnresearch was initiated, to study the coffee insects pest population incidence and occurrence inrndifferent seasons and shade status. Based on the shade status, the study area of cultivated andrnwild coffee were divided into three sites and from each site fifteen coffee plants werernsystematically selected for coffee plant leaf and berry insect damage analysis. Accordingly,rnfifteen insect families categorized under five orders were recorded and identified. Significantrnvariations in level of coffee leaf insect pests incidence with in and between wild and cultivatedrnwere observed. The mean incidence recorded between and within wild coffee population werern24.92, 19.80 and 17.21 for wet, transition and dry seasons respectively. Within cultivated coffee,rnthe mean incidence recorded was 31.2, 31.9 and 17.62 for wet transition and dry seasons,rnrespectively. Frequently occurring insect pests of coffee leaves were blotch leaf miner,rnserpentine leaf miner and coffee leaf skeletonizer. Their leaf damage proportion on wild coffeernwas 53, 23 and 24% for leaf skeletonizer, serpentine leaf miner and blotch leaf miner, while in cultivatedrnall are in equal proportion. The mean incidence of cultivated fallen berry ranged from 2â€3%, while the leftrnover ranged 12â€20%. Similarly in wild fallen berry infestation by coffee berry borer ranged from 1â€2%rnwhile,7â€13% infestation was recorded on left over coffee. In general, there were differences in insectrnpests population incidence in wild coffee that might be due to the fact that the pests are shade loving.rnDifference between plantation and wild coffee is due to high human intervention in cultivated coffeernwhich created unstable ecosystem that favor pest population to resurge and at the same time thernactivity might have affected the activity of the natural enemies.