basic entomology presentation for agriculture students
- 1. INSECT MORPHOLOGY & ANATOMY Dr.Anita Sharma Assistant Professor (Entomology)
- 2. Lecture -4 INSECTINTEGUMENT • Integument is c/ as Insect body wall or Exoskeleton. • It is ectodermal in origin. • Sclerotisation -Hard and dark • Provides lining for tracheal system, some glands, parts of alimentary canal & reproductive tract • Cuticle not only covers the entire insect body from outside, but also the foregut and the hindgut (ectodermal in origin) and the tracheae. • Insect cuticle can be further differentiated into two major parts, the non- chitinous epicuticle and the chitinous procuticle. • Constituents of cuticle :Chitin, Lipids & Polyphenols
- 3. Body wall OrIntegument - - - Insect integument consists of three distinct layers Epidermis Basement membrane