 After the collection of specimens, specimens means insects are any other arachnids from different fields, different types of insects and other specimens like arachnids you will collect. For their further study, we have to use to study their morphological characteristics by using different types of microscopes and different lights. For this purpose, we can use simple binocular microscope and compound microscope and for other magnifications, for deep magnifications we can use electron microscope. Binocular microscope magnifies the specimens 10 to 120 times while compound microscope magnifies our enlarged specimens their characteristic 100 to 200 times while electron microscope magnifies the characteristic of specimens greater than 1000 times. Actually, students specimens like ashrat, insects, etc. are very small in size because of which we have to look at their morphological characteristics, their visible characteristics and for that, we need different types of lights, we use lamps which are on the right, left, and back side of the microscope, while we do not use the bottom light, because if we use the bottom light, the specimen will be dark and we will not be able to see its microscopic characteristics. So, different types of lights are used, microscopes are used, with the help of which we can study their texonomic morphological characteristics. After that, we classify them in different groups based on those characteristics. For that, we have to use different types of equipment, different tools are required which are used in the microscope to set and fix the specimens and according to the specimen, we have to change the lights and the background because there are different colors of the specimens. If the slide or the cover slip is also the same and the color of the specimen is not visible then we will have a problem in identification. So, there are different types of tools, equipment, helping things that we can use in the texonomic identifications or classification. For this purpose, we can use liquid medium like glycerine or any jelly-like material like sanitizer or we can use sand, white sand for this purpose, we can use beads for this purpose or we can use different shapes like dome shape to set the specimen. There are different types of specimens for study, for example, dry specimens and wet specimens. So, wet specimen, dry specimens, microscope, paste, to set, we have to use different methods. If the specimen is in liquid preservation then we have to use shine for that. When we dry the specimen, the glycerine should be removed well because the glycerine will shine which will cause problems in studying the characteristic. For that, we remove the glycerine from the tissue properly and if dry preservation is a specimen, dry head, then we will face the problem of breakdown fragile. These are fragile specimens. If we handle them hardly, they will break. So, handle the specimens gently because it will break easily and we cannot submit the damaged specimens for reference. We have to submit the whole specimen, undamaged specimen for reference. So, we do not have to do any museum diamond specimen as a reference specimen. So, while studying the specimens, we do not have to break. And if there is dry preservation, then even for dry preservation, if the specimen's color is dark, black, then we have to use the background below in contrast so that we can easily define its characteristic. We have to set the specimen in different positions like dorsal position, ventral position and lateral position. For different position study, we have to set the specimens using different tactics. If we have to set the ventral position, then we have to set the specimen on the dome. We have to fix the common pin in the dome and then at the tip of the common pin, we will set the specimen ventrally and we study the characteristic from the ventral side. And if we have to look the characteristic on the dorsal side, then we can set the specimen in the wet sand. Specimen will easily fix in the wet sand or we can set the specimen in the beads. These are the small beads that we can use for the texonomic study at the microscope. So, we set the specimens at different angles at different positions using that beads in a small petri dish. On the other hand, we can also set the specimen in liquid medium like jelly or any other sanitizer. So, we will fix the specimen using petri dish. In petri dish, we will put some water or any other white solution and then in the center of the petri dish, we will put some sanitizer or jelly like medium and then we will fix the specimen in that white jelly like medium. And then specimen will easily fix and we can easily move the legs. We can easily move the different parts of the specimen like abdomen, thorax and then we can study the different microscopic characteristics of that specimen. So, for the classification, we have to study the characteristics, morphological characteristics deeply that we can use these microscopic characteristics for the classification of specimen into different groups. We have to differentiate these characteristics very clearly. It means that we have to clearly define the characteristics of the specimen. Either this character is present or absent, teeth are present or teeth are absent. Abdomen is greater than thorax or thorax is greater than abdomen. There is no ambiguity between the characteristic. We have to clearly distinguish the characteristic either this is present or absent. We have to check the different teeth. We have to count the different claws, different spines. We have to check the number of different other characteristics. On the other hand, we have to study different color patterns. Either color or not the taxonomy characteristics and they will fade with the passage of time and in alcohol preservation colors are also lost. So, using different characteristics like number of claws, number of teeth, length of abdomen, length of thorax or and measurement of different body parts. For different purposes, we have to measure the different like we have to measure the leg parts of the length of the leg parts of different specimens. So, all these characteristics are deeply studied in the microscope and then we use these microscopic characteristics for the grouping of these collected specimens. So, all these tactics are used for taxonomic studies of specimens. Thank you.