Course Content
Introduction – Definition, position of insects in animal kingdom.
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Introduction
Characters of Class Insecta
FEATURES OF ARTHROPODS
Systematic Classification of Insects
Class: Arachnida (arachnids)
Class: Chilopoda (Centipedes)
Class: Diplopoda (millipedes)
Class: Crustacea (Crustaceans): crabs, shrimp, barnacles, sow bugs, etc.
Class: Insecta (Insects); beetles, bugs, wasps, moths, flies, etc.
Reasons for the dominance of insects over other animals
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DOMINANCE OF INSECTS
REASONS OF DOMINANCE
Some fascinating facts about insects
BENEFICIAL AND HARMFUL EFFECTS OF INSECTS
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Beneficial effects
Detrimental effects
External morphology: Body regions, external processes, cuticle
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Body segmentation of Insect
Insect Body wall/Integument/Exoskeleton
Cuticle
Principle Layers of the Cuticle
Epidermis
Molting
Insect Head
Types of head or orientation of Head
Insect Antennae
MODIFICATIONS OF INSECT ANTENNAE
MOUTH PARTS
Parts of Mouth
Modification of mouth parts
MANDIBULATE MOUTH PART
PIERCING-SUCKING MOUTHPARTS
RASPING AND SUCKING MOUTH PARTS
CHEWING AND LAPPING TYPE
SIPHONING TYPE
SPONGING TYPE
CUTTING AND SPONGING TYPE
Visual Organs or Photoreceptor
Difference between Simple Eyes and Compound Eyes
THORAX AND THORACIC SEGMENTS AND ITS APPENDAGES
Structure of legs
Modification of legs
Other forms of modification of legs
WINGS
Wing venation
Wing adaptations and modifications
Abdominal Appendages
Some parts of Post genital appendages
Internal Anatomy
Digestive, Reproductive (Male and Female), Respiratory, Circulatory, Nervous and Excretory Systems.
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DIGESTIVE SYSTEM OF INSECTS
Salivary glands
Process of digestion
Digestive enzymes
Modification of digestive system of insects.
CIRCULATORY SYSTEM OF INSECTS
Dorsal blood vessel
Accessory pulsatile organs
Process of blood circulation
Properties of blood
Functions of blood
EXCRETORY SYSTEM OF INSECTS
RESPIRATORY SYSTEM OF INSECTS
Classification of tracheal system based on the number and arrangement of functional spiracles
Other types of respiration
REPRODUCTIVE SYSTEM IN INSECTS
Female reproductive system
Male reproductive system
Types of Reproduction
NERVOUS SYSTEM OF INSECTS
Classification of Nervous System
Insect Metamorphosis and Development
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Introduction
Types of Metamorphosis
Types of Larvae
Quiescence and Diapause
Classification and Study of Economically Important Orders and Families of Insects
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Classification of insects
EXOPTERYGOTA (Simple body change during growth)
ENDOPTERYGOTA (Complex body change during growth)
INSECT ORDERS OF ECONOMIC IMPORTANCE
Families of economic importance
ORDER: HOMOPTERA
Families of economic importance
COLEOPTERA
Economically important families
ORDER: DIPTERA
Economically important families
ORDER: HYMENOPTERA
Economic important families
ORDER: LEPIDOPTERA
Economically important families
Moths (Heterocera)
Introduction to Industrial Entomology: Apiculture, Sericulture, Lac culture.
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Life cycle of Honeybee (Apis milifera )
Life cycle of silkworm (Bombyx mori Linnaeus )
Life Cycle of Lac Insect ( Kerria lacca)
Learn Introductory Entomology with Rahul
About Lesson

Insect Body wall/Integument/Exoskeleton

  • The body wall or integument is the outer layer of the insect and bends inwards at various points to form supporting ridges or braces.
  • The body wall of insect is composed of three principal layers: the cuticle, epidermis, and basement membrane.
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