The external morphology of Lepidoptera is the physiological structure of the bodies of insects belonging to the order Lepidoptera, also known as butterflies and moths.Lepidoptera are distinguished from other orders by the presence of scales on the external parts of the body and appendages, especially the wings. enable_page_level_ads: true
Mandibles: The mandibles are a pair of jaws suspended from the head of the bee. It is the same as a long tube and coil that is located on the beneath of the head of the butterfly. There are five basic components that form these mouthparts: It is also called as proboscis. A butterfly doesn't have a mouth. Share Your PDF File
The mouth parts are of siphoning type and are comprised of a basal transverse and rectangular labrum, a pair of reduced mandibles, a pair of maxillae (galeae) forming a long and coiled proboscis and paired labial and maxillary palps. Mandibulate Mouthparts. They only open up after receiving the food stimulus. 1). This is the slide of head and mouthparts of Butterfly. Our mission is to provide an online platform to help students to share notes in Biology. When a female mosquito sits on the host, it presses the proboscis against the skin. Labrum: The mouth is covered by labrum. These mandibles are provided with two pairs of muscles namely, adductor and abductor muscles to help the movement of mandibles only in horizontal plane against each other. I don't need all of that information just on the digestive system. Labellum: The glossae are greatly elongated to form a hairy, flexible tongue. The word “butterfly” has been in the English language for centuries. ' The butterfly or moth's collection of mouthparts, the proboscis, is modified for drinking, curls up when not in use, and extends like a drinking straw when it feeds. The number of stylets varies with different insects. Also the larvae of mosquito, housefly butterfly and honeybee also have biting and chewing mouthparts. In butterflies and flies, the mouthparts consist of a proboscis adapted for using capillary action to pull thin films of fluid from surfaces for subsequent feeding. The maxillary palps and labium pre greatly reduced and degenerate and labial palps are well developed and jointed. One of the other mouthpart types that are easily recognizable are butterfly and moth proboscises. [CDATA[
1. TOS4. However, two parts, the maxillary galeae fused to form the butterfly tongue which is called the proboscis. The sucking action of muscles of cibarium and pharyngeal muscles help in sucking the blood through the food canal. For example, the caterpillar stage of butterflies and moths has chewing mouthparts while the mouthparts of adult butterflies are siphoning. (a) Positions of the proboscis showing, from left to right, at rest, with proximal region uncoiling, with distal region uncoiling, and fully extended with tip in two of many possible different positions due … Biology. Ask your question. Secondary School. In all “primitive” insects, the mouthparts are adapted for grinding, chewing, pinching, or crushing bits of solid food. Accumulated nectar is then drawn into oesophagus by the pharyngeal pump. This pressure is generated in the stipes which is associated with each galea. Yeast: Origin, Reproduction, Life Cycle and Growth Requirements | Industrial Microbiology, How is Bread Made Step by Step? These types of mouth parts are present in almost all the bloodsucking insects like tse-tse fly, bed bug etc. Zoology, Practicals, Invertebrates, Butterfly, Head and Mouth Parts of Butterfly. The salivary duct opens into salivarium at the base of the hypopharynx. The mouth parts are of siphoning type and are comprised of a basal transverse and rectangular labrum, a pair of reduced mandibles, a pair of maxillae (galeae) forming a long and coiled proboscis and paired labial and maxillary palps. Butterflies do not possess biting mouthparts that are able to sink into any prey. • Muscles attached to the labrum move it outward, away from the other mouthparts and inward toward the other mouthparts Butterflies are the adult flying stage of certain insects belonging to an order or group called Lepidoptera. These similar mouthparts are an example of homologous organs. According to scientific studies, butterflies have a siphoning-sucking mouthpart composition. The other examples include grasshopper, dragonfly and beetle. Labrum-epipharynx is a stylet that has a ventral groove, which forms the food canal with the hypopharynx. Why do lymph nodes often swell and become tender or even painful when you are sick? These are known as “mandibulate” mouthparts because they feature prominent chewing mandibles. The labrum-epipharynx and hypopharynx are inserted into the wound. The mouthparts of female mosquito are piercing and sucking type. Labium: Labium is formed by the fusion of second pair of maxillae. The basic segmental character of the mouthparts is most apparent in insects that bite off fragments of food and then chew it before ingesting it (Fig. Maxillolabial Structures: Maxillolabial Structures are modified to form the lapping tongue. 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