The origin of wings and venational types in insects. A list of different antennas antenna types with links to detailed descriptions. Mouth parts in insects with diagram biology discussion. Labrum a cover which may be loosely referred to as the upper lip. Different types of antennas with properties and thier working. Structure and modifications of insect antennae fundamentals. Mr mubasshir sohail teaching asistant 3rdb semester b. This is a list of common insects found in and around the home.
The adult capitate antenna of the red flour beetle, tribolium castaneum, is composed of eleven articles, organized into four distinct morphological regions scape, pedicel, funicle and club. Group members adnan nawaz 72 arshad ali 79 mohsin altaf 74 hafiz irfan elahi 75 muhammad kamran 76 farrukh sajjad 77 asad hayat 78 ali husnain 80 data collection and arrangement. The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. Aristate antennae are most notably found in the diptera true flies. Insects live in many different habitats and environments. The origin of wings and venational types in insects william t. Entomology types of wings insects flashcards quizlet. See how many different kinds of insects you can find. Learning these antennae types will help you identify insects. Usually two pairs of wings absent in many insects such as lice, eas, ants. The thorax is where all of the insect s legs and wings are attached. You can recognize an insect by its six legs, three body parts head, thorax, abdomen, and two antennae. Antenna types antennas can be classified in several ways.
Describe different eye types state uses of the antennae and name and draw the different antennal types 2. Insect mouthparts amateur entomologists society aes. Some insects are very helpful in destroying injurious insects. Most insects have four wings, but sometimes they are modified wings. All in all, you can see that the insect antenna is a highly complex and very sophisticated stateoftheart sense organ. Antenna structure varies widely among insects, in contrast to the wellconserved structure of legs.
As shown in the given diagram, the half wave dipole consists of a conducting wire cut from the center where the input is provided in case of transmission or output is obtained in case of reception. Insect, class insecta or hexapoda, any member of the largest class of the phylum arthropoda, which is itself the largest of the animal phyla. Such is the diversity and variety among the species that half of the living ones belong to the class insecta. An insect s body has three major body parts, including a head, thorax and abdomen. With 2 pairs of antennae one pair may be smaller than. Each segment has an own set of muscles that moves it independently from the rest of the. A moths antennae are vastly different from the antennae of a termite, which are in turn vastly different from the antennae of the butterflies. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Arthropods use antennae to touch, smell, and even hear the world. The total number of insect species documented are more than 1 million. The head is where you find all the sensory organs the eyes, ears, mouth and antennae. Just as insects take on many different forms, they also possess a variety of different mouth types, each of which.
The different types of dipole antennas used as rf antennas include half wave, multiple, folded, nonresonant, and so on. Insect antennae serve different sensory functions and come in different forms. Structure of insect antennae antennae function almost exclusively in sensory perception. Are you curious about the different types of insects you see wandering around in your garden. The practical aspects of the unit are contained in a separate manual. These consist of the labrum forming upper lip, mandibles, first maxillae, second maxillae forming lower lip, hypo pharynx and the epipharynx. Paired, mobile, and segmented, they are located between the eyes on the forehead. Schons agriculture university college of agriculture university of sargodha truth.
The antennas commonly used for lmrboth at base stations and mobile unitsrepresent only a very small portion of all the antenna types. You can find insects living in nearly everywhere on earth. Insects have two antennae and these are used to sense their environment. Nevertheless, this study can be seen as an initiative for assessment of insect antennas for different applications by the researchers. This type is also called hemipteroid type or opisthorhychous. Type and distribution of sensilla in the antennae of the. In many insects of the order lepidoptera which include moths and butterflies, the antenna gradually becomes broader at the tip making it looks like a club or knob. Three physical features separate insects from other arthropods. Insects use antennae to find food and detect enemies.
Pdf the basic mechanism by which the antennal flagellum is subdivided into flagellomeres is probably the. Although antennae vary widely in shape and function, all of them can be divided into three basic parts. Insects photographic atlas of entomology and guide to insect identification how to know the immature insects insects and diseases of woody plants of the central rockies pests of the west book title list handout. Insects perceive their surroundings through different organs, among which antennae are some of the most important. This basic structure is modified in a wide variety of ways. Lice, fleas, and other insects that feed on other animals use their antennae to sense the body heat or moisture of their victims. Choate much of our usual appreciation of an animal in any condition. Antennae are the primary olfactory sensors of insects and are accordingly wellequipped with a wide variety of sensilla singular.
There are many different types of legs that insects may have. Particularly, wire antennas such as the short dipole and halfwave dipole antennas are presented, aperture, patch, reflector and travelling wave antenna types are presented. There are five different structures which are used for the initial collection and processing of food. Insect morphology is the study and description of the physical form of insects. Name the three parts of the thorax identify major veins of the insect wing describe different types of insect legs and identify the parts of the walking leg identify modifications of the pronotum 3. This video covers different shapes of antennae in different insects. There are hundreds of thousands of different types of insects around the world. Antennae appear in a lot of incredibly diverse shapes and sizes, and every group of insects develops one or more models. Apis, the honeybees produce millions of tons of honey every year, it also gives bees. Part of the biodiversity counts curriculum collection. Introduction to the identification of insects and related arthropods 2003 p. Insects have six legs and they are adapted to help them move around their environment. Insect body is differentiated into three distinct regions called head, thorax and abdomen.
The antenna consists of a radiating element that splits the rods and make current flow through the center by using a feeder at the transmitter out that takes from the receiver. Some insects have only two wings, while others have no wings. These antennae help them locate food and sense danger from predators. Introduction to the identification of insects and related.
From featherlike to clubbed, see the wide variety of antennae. Do you want to know all about the kind of insects that might be crawling around in your home. Study of insect s antennae as a microstrip antenna with metamaterial and ferrite. Today i thought id do the same sort of thing, but with insect antennae. In this article we will discuss about the economic importance of insects. Insects are arthropods which have an exoskeleton that is chitinous and a body divided into three parts head, thorax, and abdomen. Antennas are basic components of any electrical circuit as they provide interconnecting links between transmitter and free space or between free space and receiver. So, our rove beetle uses its antenna to feel, detect vibrations and wind movements, to smell, to taste and. Others include physical structure and electricalelectromagnetic design. The biting mouthparts of an adult damselfly make short work of an aphid. Insects class insecta have segmented bodies, jointed legs, and external skeletons. Other important features of their body are the antennae, compound eyes, and legs.
Antennae are sense organs of insects with multiple functions. Aristate antennae are pouchlike, with a lateral bristle. Forbes there have been many theories as to how the wings of insects arose, and from what parts of the body they were derived, but with increase of knowledge of the morphology most of. Introduction to the identification of insects and related arthropods. Insect orders introduction the class hexapoda is generally studied under a classi cation system with approximately 30 orders. Bristletails, cockroaches, mayflies, stoneflies and caddisflies.
Insects feel through their antennae all you need is biology. The primitive arrangement of mouthparts is seen in the cockroach here they are used for biting. A pectinate antenna, for example, has each subunit prolonged at one side, giving rise to a comb like appearance. Click beetles elateridae often have serrate type d or pectinate type e antennae. Insects have an exoskeleton, three body segments the head, the thorax, and the abdomen. Some of the information that can be detected by insect antennae includes. Genetic patterning in the adult capitate antenna of the.
Some of these modifications just provide greater surface area for sensory receptors, while others are unique adaptations that bestow special sensory capabilities, such as detecting sound vibrations, wind speed, or humidity. Like the mouthparts and antennae, insect legs are highly modified for different functions. Antenna theory types of antennas antennas have to be classified to understand their physical structure and functionality more clearly. Except for the proturans, which are wingless hexapods, diplurans, springtails collembola and insects develop different types of antennae. Accurate insect identification is important as it is one of the first components of integrated pest management. If you continue browsing the site, you agree to the use of cookies on this website. Head appendages are pair each of antennae, mandibles, 1st maxillae and 2nd. During this transitional stage, the larval characters are destroyed and new adult characters are created. The insect leg generalized orthoptera leg of weta 3.
A wide array of antenna forms is found as a result of different modification of the subunits. Insects are distinguished from other arthropods by their body, which is divided into three major regions. This type of mouth parts are supposed to be the most primitive type as the other types are believed to be evolved from biting and chewing type of mouth parts. Insects evolved from prehistoric crustaceans, and they have secondary antennae like crustaceans, but not primary antennae. The different types of antenna are highly relevant for the determination of beetles. Segmented appendages attached to the head above the. The adult insect possess a pair of antennae it bears from the 2 nd segment of head antennae function almost exclusively in sensory perception. The enlargement at the end is almost entirely towards one side from the axis of the antenna and forms broad, some.
Ground beetles carabidae do most have filiform antennae type a, geniculate antennae type f are found in lucanidae and curculionidae. Other insect species may have very different types of sensilla insect sensory systems are very diverse. Most insects have antennae that allow them to touch, taste, hear and smell. Insects can live on land, in the water or both and are coldblooded creatures that require the sun to warm them. Insects which produce honey, wax, lac, dyes and silk are commercially beneficial. Before we discuss about antenna types, there are a few properties that need to be understood. Here, we report the use of rna interference to examine the functions of 21 genes during antenna.
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