It is also known as ligula or tongue. 4. Mouthparts of the cabbage white or cabbage butterfly, Pieris rapae (Lepidoptera: Pieridae). Hemimetabolous insects have similar type of mouthparts in their larvae and adults. It is also called as proboscis. 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. Our mission is to provide an online platform to help students to share notes in Biology. The glossa terminates into a small circular spoon shaped lobe called labellum, which is useful to lick the nectar. The galeae fit tightly lengthwise, against the elongated labial palps and they in turn roof over the elongated glossae (tongue) to form a temporary food channel through which saliva is discharged. Each palpiger has a 3-segmented labial palp. However, two parts, the maxillary galeae fused to form the butterfly tongue which is called the proboscis. If the fly encounters solid food it wants to eat, it drops saliva onto it, turning the food into a liquid. This palp is situated on a small sclerite called palpifer. The proboscis is basically a curly straw that lepidopterans use to suck up nectar or other liquids. (adsbygoogle = window.adsbygoogle || []).push({ Mouthparts of insects are modified cephalic appendages. 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. (Someone else wondered if the word was really meant to be 'flutter-by' ). [CDATA[ antennae – often called ‘feelers’, these are a pair of long appendages on the head of the adult butterfly or other insect used for balance and sensing smells. In this article we will discuss about the head and mouth parts of butterfly with the help of diagram. Hemimetabolous insects have similar type of mouthparts in their larvae and adult stages. The first maxilla has two basal segments called cardo and stipes. One of the other mouthpart types that are easily recognizable are butterfly and moth proboscises. Welcome to BiologyDiscussion! Insect mouth parts show many cases of parallel evolution, the same end being independently achieved along similar, but not identical lines. Butterflies and moths are important pollinators of these plants. They are useful to make a wound in the skin of the host. This feeding is analogous to inserting a straw into a drink to withdraw liquid. The number of stylets varies with different insects. Before we jump right into things, we need to first take a look at the butterfly mouthpart bits. It is then retracted between labial palps & galeae. The mouthparts of honeybee are chewing and lapping type. Answer Now and help others. The mouthparts of female mosquito are piercing and sucking type. When a housefly settles on the food, the haustellum and labella which are bent backwards underneath the rostrum are thrust out and labella are pressed against the food. (With Methods)| Industrial Microbiology, How is Cheese Made Step by Step: Principles, Production and Process, Enzyme Production and Purification: Extraction & Separation Methods | Industrial Microbiology, Fermentation of Olives: Process, Control, Problems, Abnormalities and Developments, The best answers are voted up and rise to the top. The flexible proboscis bends and the mandibles along with maxillae make a wound on the skin of the host. Labium: It is a long, flesh, flexible and unpaired structure with groove called labial groove along its mid dorsal side. 1. These similar mouthparts are an example of homologous organs. Moths also belong to this group. These paired "teeth" that can be opened and closed to get the work done. Pharynx communicated with the food canal. The rostrum encloses pharynx and salivary duct. This article will focus on four commonly encountered types of mouthparts: chewing, piercing-sucking, siphoning, and rasping. A butterfly is a flying insect of the order ‘Lepidoptera’ (an order of insects with broad wings which have minute overlapping scales). 6. Different insects have adapted themselves to different modes of ingestion of food. Inner to the palp two chitinous lobes namely lacinea and galea are found attached to stipes. The insect uses them to chew wood when redesigning the hive entrance, to chew pollen and to work wax for comb-building. This labrum is attached to the clypeus. Ask your question. The labrum-epipharynx and hypopharynx are inserted into the wound. All the other mouthparts like mandibles, first pair of maxillae and hypopharynx are enclosed in the groove of the labium. In the female horseflies which also possess sponging type of mouthparts, mandibles are present. The tongue unit consists of the two galeae of maxillae, two labial Palps and an elongated flexible hairy glossa of labium. The mouthparts are used for sucking nectar from flowers. The proboscis is hollow internally and remains coiled under head when not in use. MOUTHPARTS OF BUTTERFLY. Fig. Homometabolous insects have different types of mouthparts in their larvae and adults. According to scientific studies, butterflies have a siphoning-sucking mouthpart composition. 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. It is above the butterfly's proboscis. It is also known as upper lip. The other examples include grasshopper, dragonfly and beetle. Immature moths and butterflies have chewing mouthparts. Their mouthparts are long and tubular in shape, called a proboscis, and is designed for sucking the nectar out of flowers. Two sets of muscles move the mandibles in the coronal plane : abductor muscles move insects' mandibles apart ( laterally ); adductor muscles bring them together ( medially ). And the mosquito thus feeds on the blood of vertebrates. Insect mouthparts are derived from the appendages of four of the segments forming the insect head. This liquefied food enters pseudotracheae by the capillary action upto the mouth via food channel. Only maxillary stylets and mandibular stylets are present in bugs, whereas labrum-epipharynx and hypopharynx along with maxillary stylets and mandibular stylets are also present in mosquitoes. Rather the mouthparts of adult butterflies are in the form of a coiled proboscis adapted for siphoning and sucking nectar from flowers. They only open up after receiving the food stimulus. Female mosquitoes feed on the blood of warm blood vertebrates. The mouthpart of a butterfly is the sucking type and is most suitable for drawing out nectars from flowers. These are styles with blade like tips. The maxillary palps are used for cleaning the antennae and also the front pair of legs. The butterfly pupa is called a chrysalis, or chrysalid. ‘Skippers differ from butterflies in that they have thicker bodies, better eyes, stronger […] Previous years questions with explanations...for all competitive exams. All six of the aforementioned mouthparts are elongated and 'zip' together to form a tube. This bite of mosquito causes itching and mild inflammation. We have loaded Previous years questions with explanations...for all competitive exams. 5. Like and Follow us on Facebook and Telegram for latest updates... //