Mouth Parts of Insects

                  

PIERCING & SUCKING TYPE

1.     The all appendages of mouth parts are narrow and elongated forming proboscis.

2.     Labium forms a sucking tube which is covered by labrum fitted like lid.

3.     The maxillae and mandibles are sharp and needle like to pierce the skin of animal or plant to  draw blood which is sucked by labium.

4.     Hypopharynx is long used to inject saliva.  

5.     None of the mouth parts are fused together.

6.     Maxillary palps bear chemoreceptors.

    

Function : This type of mouth parts are used for piercing the skin of animals and plan to suck blood and  fluid.

Ex. Mosquitoes,  bugs and lice.