Describe and draw a neat labelled diagram of the mouth parts of cockroach? (S)
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Mouthparts of insects are modified cephalic appendages. Different insects have adapted themselves to different modes of ingestion of food. The basic structure of mouthparts remains the same. These similar mouthparts are an example of homologous organs. Homometabolous insects have different types of mouthparts in their larvae and adults. Hemimetabolous insects have similar type of mouthparts in their larvae and adults.
The mouthparts of cockroach are biting and chewing type. This biting and chewing type of mouthparts are considered as the most primitive and unspecialized of all the mouthpart types. The other examples include grasshopper, dragonfly and beetle. Also the larvae of mosquito, housefly butterfly and honeybee also have biting and chewing mouthparts.
The mouthparts of cockroach are developed to suit its habit of feeding on solid food and as a result it has well developed mandibles. All the components of the mouthparts are present without any modification. These mouthparts help the cockroach to bite and chew on hard stuffs, consume soft stuffs and also lap upon liquids. The mouthparts also include Labrum, Mandibles, and a pair of first maxillae, labium, and hypopharynx. The following is the structure of each of the mouthpart,
Labrum: The mouth is covered by labrum. It is also known as upper lip. This labrum is attached to the clypeus. The labrum bears gustatory sensilla on its inner surface. Labrum helps in tasting and also handling the food.
Butterfly mouthpar
The mouthparts of cockroach are biting and chewing type. This biting and chewing type of mouthparts are considered as the most primitive and unspecialized of all the mouthpart types. The other examples include grasshopper, dragonfly and beetle. Also the larvae of mosquito, housefly butterfly and honeybee also have biting and chewing mouthparts.
The mouthparts of cockroach are developed to suit its habit of feeding on solid food and as a result it has well developed mandibles. All the components of the mouthparts are present without any modification. These mouthparts help the cockroach to bite and chew on hard stuffs, consume soft stuffs and also lap upon liquids. The mouthparts also include Labrum, Mandibles, and a pair of first maxillae, labium, and hypopharynx. The following is the structure of each of the mouthpart,
Labrum: The mouth is covered by labrum. It is also known as upper lip. This labrum is attached to the clypeus. The labrum bears gustatory sensilla on its inner surface. Labrum helps in tasting and also handling the food.
Butterfly mouthpar
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mouthparts of the cockroach are modified to eat the variety of the food. it includes the mandibles which are the main part of the predation process which chew and tear apart the prey. maxillay helps in the capturing and holding of the food.
labium and labrum are the upper and lower lips of the cockroach. moreover there is a frone. a pair of antennae are also present.
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