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Some moths do not feed after emerging from the pupa, and have greatly reduced, vestigial mouthparts or none at all. All but a few adult Lepidoptera lack mandibles (the superfamily known as the mandibulate moths have fully developed mandibles as adults), but also have the remaining mouthparts in the form of an elongated sucking tube, the proboscis.
Within the Neuropterida, adults have chewing mouthparts, but the mandibles of male dobsonflies are non-functional in feeding. The larvae in many lineages are predatory, with mandibles modified with grooves along which digestive saliva flows, while the larvae of the family Sisyridae have the mouthparts developed into a sucking tube which they ...
A few Lepidoptera species have reduced mouthparts and do not feed in the adult state. Others, such as the basal family Micropterigidae, have chewing mouthparts. [21] The proboscis (plural – proboscises) is formed from maxillary galeae and is adapted for sucking nectar. [3] It consists of two tubes held together by hooks and separable for ...
The mandibles cut and crush food, and may be used for defense; generally, they have an apical cutting edge, and the more basal molar area grinds the food. They can be extremely hard (around 3 on Mohs , or an indentation hardness of about 30 kg/mm 2 ); thus, many termites and beetles have no physical difficulty in boring through foils made from ...
[25] [26] These flies have complex cutting mouthparts that make a superficial wound in skin. Blood flowing into the wound is sponged up by the labella organ of the mouthparts (see photograph of Tabanus mouthparts). The flies tend to take small meals from many hosts at short intervals, to avoid the defensive actions of their hosts.
Males only drink sugary fluids, and have less specialized mouthparts. [ 46 ] Externally, the most obvious feeding structure of the mosquito is the proboscis, composed of the labium , U-shaped in section like a rain gutter , which sheaths a bundle (fascicle) of six piercing mouthparts or stylets.
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Housefly mouthparts, showing the pseudotracheae, semitubular grooves (dark parallel bands) used for sucking up liquid food. The mouthparts are specially adapted for a liquid diet; the mandibles and maxillae are reduced and not functional, and the other mouthparts form a retractable, flexible proboscis with an