Changes

Mouthparts are modified depending on the insect's feeding method.

Mouthparts are modified depending on the insect's feeding method.

Insects that suck up liquified food, have an expanded sponge-like labellae. They cannot penetrate skin. They also have palps present which are sensory structures.

Insects that suck up liquified food, have an expanded sponge-like labellae. They cannot penetrate skin. They also have palps present which are sensory structures.

Insects that suck blood, have long slender mouthparts for piercing skin.

Insects that suck blood, have long slender mouthparts for piercing skin. Mouthparts include:

**Hypopharynx

**Hypopharynx- The bottom part of the pharynx.

**Mandibles

**Mandibles- Appendages near the insect's mouth.

**Labrum

**Labrum- A lobe-like structure acting like an upper lip.

**Maxillae

**Maxillae- Modified limbs that work as a pair of accessory jaws.

*Larval mouthparts are prominent

Larval mouthparts are prominent. They contain One pair of hooks, a Cephalo-pharyngeal skeleton

**One pair of hooks

**Cephalo-pharyngeal skeleton

**Mouthparts help identify larvae

**Mouthparts help identify larvae