Insect head and its types

Description of Insect Head and its types

1. Insect Head

2. Insect body divided into three major regions Head Thorax Collectively called as Tagmata Abdomen  Division of Insect Body ENT-301 (Lecture-2) Dr. Azhar A. Khan

3. General Terminology

4. Head Segmentation

5. Body regions Insect Body Regions : Head, Thorax, and Abdomen. See text for details. Modified from Packard 1890.

6. Types of Head Prognathous: Insect with projected head to farward (Beetles) Hypognathous: Insect with projected head to downward ( Grasshopper) Opisthognathous : Insect with projected head to lower and backward as proboscis are (Bugs) The hard outer covering of head is called as Head Capsule also called as Cranium

7. Antennae Contain chemical, olfactory, tactile, and auditory receptors Can also sense vibrations 2) Compound eyes: consist of Facet…. Transparent biconvex lens Vision/movement/color Ocelli (light detection) 3) Specialized mouth parts Food gathering, defense 4) House of Brain Important Features of Head Referred as insect's feeding and sensory center

8. . formed after molting Head is composed of a series of sclerites to form a specific shape. Ecdysal Cleavage … Epecranial suture (2) Vertex (3) Frons (4) Clypeus (5) Occiput …..Neck/ Crevix All these plates are connected through sulcus/ sutures