Insects form an important group of Animals which belongs to the phylum Arthropoda. They are basically characterised with three pairs of legs, two pairs of wings and three distinct body parts – head, thorax, and abdomen. The major beneficial insects are Apis india (Honey bee), Bombyx mori, Tachardia lucca. For detailed study on morphology and identification we have collected these species from the study area of district Amethi, U.P. India. This is the area from where limited information on beneficial insects was available in literature. During study period from July 2014 to August 2015, a total of 30 samples of selected species from the study area were collected. The samples were identified with the help of standard taxonomic keys and morphological features were recorded. After that these samples were preserved in 70% formalin solution for future reference. The detailed morphometry will be discussed in the paper. To fulfil the knowledge gap, this study provides the detailed information on identification and morphology of Apis indica, Bombyx mori and Tachardia lucca for their better use and sustainable management.