Diversity and abundance of some insect fauna in Bhawal and Madhupur Sal forests of Bangladesh

The abundance and diversity of insect fauna were studied from two deciduous sal forests Bhawal Madhupur located at central part Bangladesh. A total 544 individuals insects 61 species belonging to 54 genera, 33 families 11 orders have been identified with Hymenoptera (31%) as the dominant order in richness followed by Coleoptera (13%), Orthoptera (11%), Diptera (10%), Hemiptera (8%), Lepidoptera Odonata Homoptera (3%), Isoptera Neuroptera (3%) Dictyoptera (2%). scores higher Shannon-Weaver index (Hʹ=3.725) compared (Hʹ=3.340). Sal Forest collected 341 (63%) 53 (59%) 10 was found more diverse than 37(41%) 203 (37%) samples. Insects not recorded Bhawal. Off species, 29(48%) common both forests, 24(39%) exclusive eight (13%) Forest. Apis cerana having 9% samples dipteran Musca domestica 6% Among 30 (49%) playing beneficial role biological control agents, predators, pollinators, honey producers also organic debris recycler. On other hand, 31(51%) be harmful causing damage forest vegetation well human wildlife variable degrees. J. Biodivers. Conserv. Bioresour. Manag. 2021, 7(1): 11-24