Parts of insects

1. Abdomen:

• 3^rd and largest region of insect body which is usually  11 segmented.
• Male has hood shaped terminal portion .
• Female has hook like projections at the end.

2. Eyes:

• Each compound eye is made up of large no. of smaller optic units called ommatidia.
• Facet is lens or cornea of an

3. Simple eyes (Ocelli):

• 3 simple eyes are arranged in triangular fashion.
• Cockroaches and butterflies have no simple eyes.

4. Stemma:

• Intermediate between simple and compound eye.
• Found in caterpillars head

5. Mouth:

• In chewing and lapping mouth type, labrum and maxillae modify to form a long slender tongue. Eg: Honey bee.
• Lacerating type mouth parts: Thrips