Housefly has mouth parts that help in sucking.
The housefly refers to the Diptera family. Chemo sensilla are receptors on the tarsi of this group of flies. Such receptors assist in the identification of sugar or carbohydrates in either liquid or dry form. The labium is expressive and has a sponge-like labellum at the end. Mandibles are paired, and maxillae are present.
When the insects sense food, they secrete a viscous substance known as saliva. This saliva, along with the ambient water, assists in the sugar’s breakdown and conversion to a liquid form. With the aid of the mouth pieces, the liquid is then soaked and sucked. Via tiny tubes, food reaches the labellum. Food travels into the mouth and into the oesophagus.