The writer of the present text, being convinced that generalizations are more important than mere knowledge of facts, and being also some what partial to his own way of thinking about insects, has not been able to refrain entirely from presenting the facts of insect morphology and systematics in a way to suggest relations between them that possibly exist only in his own mind. Each of the several exercise of this manual, in other words, is an attempt to give a coherent morphological view of the fundamental nature and the apparent evolution of a particular group of organs or associated structures. It is more than likely, practically certain, that many of the generalizations here offered will soon be modified or superseded by other generalizations, but they will have served their purpose if they induce critical students to make a wider and more thorough study of the problems of insect morphology. The students are expected to read the laboratory procedures before class so that he or she may perform experiments in efficient manner and understand the reason for the results obtained. A unique aspect of this manual is inclusion of considerable background information on the relevant of insect morphology and systematics with lab exercise. In last we sincerely invite the readers to feel free and write to us expressing their appropriate opinions, critical comments and constructive suggestions We have heart felt affection to our parents, friends and near and dears for their indispensable encouragement, selfless sacrifices, sustained inspiration and invaluable assistance throughout during this manual. Finally, we wish to apologize to all those people who helped us and we could not mentioned is not for lack of gratitude but due to lack of space, we thanks all of them. Meerut Author 2022 Arun Kumar