Question

Mouth parts of housefly is of

• A. Sponging type
• B. Sucking type
• C. Siphoning type
• D. Piercing type

Answer 1

Answer: (A)

The housefly belongs to the family Diptera. The flies of this group have chemosensilla as receptors on the tarsi. These receptors help in sensing the presence of sugar or carbohydrates in liquid or dried form. The labium being articulate and possessing at its end a sponge-like labellum. There are paired mandibles and maxillae are present. After sensing the presence of food, the insects secrete viscous liquid as saliva. This saliva and the atmospheric water helps the sugar to get dissolved and get converted in the liquid form. The liquid is then soaked and sucked with the help of the mouth parts. The food enters the labellum through minute channels. The food moves from the mouth to oesophagus.

Thus, the correct answer is option A.