Odonata, insect order comprising the dragonflies (suborder Anisoptera) and the damselflies (suborder Zygoptera). The adults are easily recognized by their two pairs of narrow, transparent wings, sloping thorax, and long, usually slender body; the abdomen is almost always longer than any of the wings.
What is the anatomy of a dragonfly?
abdomen | The segmented tail-like section of the body. |
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frons | The most prominent part of the face in anisopteran dragonflies. |
labium | The lower lip of the dragonfly’s mouthparts; in the larva this is held under the head but can rapidly shoot forwards to catch prey. |
lateral spine | Spine on the side of anisopteran larvae. |
What kind of wings does Odonata have?
The principal structural features of adult odonates reflect adaptations to flight. Adults have two pairs of narrow, typically transparent wings and a long, slender abdomen consisting of 10 segments. The head has prominent eyes and inconspicuous antennae, and the thorax is tilted along the body’s axis.
What kind of legs do Odonata have?
Dragonflies are a group of insects scientists call the Odonata. Like all insects they have a hard exoskeleton, made of chitin (pronounced: kite-in) and proteins. They have six segmented legs and their bodies are divided into three main parts: head, thorax and abdomen.
Are Odonata complete or incomplete metamorphosis?
Odonata (dragonflies and damselflies) are insects with an incomplete metamorphosis (hemimetabolous). The aquatic larva or nymph hatches from an egg, and develops through eight to seventeen instars before leaving the water and emerging as the winged adult or imago.
What is the function of the cerci?
On the end of the abdomen, there are a pair of cerci, projections which are sensory organs. Cerci function in a similar manner to antennae, sensing vibrations through air or ground.
What are the characteristics of dragonfly?
Dragonflies have long, delicate, membranous wings which are transparent and some have light yellow colouring near the tips. Their bodies are long and slender and they have a short antennae. Dragonflies are very colourful, for example the Green Darner Dargonfly has a green thorax and a blue segmented abdomen.
What is the habitat of a dragonfly?
Immature dragonflies live in freshwater. They are most abundant an diverse in slow-moving freshwater that has no fish (small streams and ponds) but can be found in many shallow freshwater habitats. Adult dragonflies often stay near water, but sometimes travel away from water while hunting or on migration.
What is the scientific name of dragonfly?
Dragonfly Species, Types and Scientific Name
Anisoptera is the scientific name of these insects. While Anisoptera is its family, the dragonfly belongs to the order classification of Odonata. The word Odonata is Greek meaning ‘toothed one.
What do Odonata eat?
- Dragonflies eat flies, mosquitos, butterflies, and tadpoles. …
- Adult dragonflies catch their prey in midair, while nymphs mostly hunt underwater.
- Common prey that dragonflies eat include mosquitoes, gnats, and mayflies.
- Adult dragonflies will consume any insect they catch.
What family is Odonata?
ZYGOPTERA | ||
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Aeshnidae | Gomphidae | Neopetaliidae |
Petaluridae | Cordulegastridae | Corduliidae |
Libellulidae |
How many species of Odonata are there?
Odonata, meaning “toothed-ones,” comprises over 5,000 living species, all of which are assigned to suborders Zygoptera (damselflies) and Anisoptera (dragonflies). The number of species in each suborder is roughly the same. The 8 living superfamilies are divided into 27 families and slightly over 600 genera.
Where do larval forms of members of Order Odonata live?
Odonate larvae (nymphs) live in the water, a life stage that can last several years. During this period, the nymphs pull water through their gills to capture oxygen, and their “exhale” helps propel them through the water.
Where does the word Odonata come from?
The name Odonata, derived from the Greek “odonto-“, meaning tooth, refers to the strong teeth found on the mandibles of most adults.
Are Odonata monophyletic?
Alternatively, Odonata plus Neoptera have been considered to be a monophyletic taxon (= Metapterygota) that is sister to Ephemeroptera, or Ephemeroptera plus Pterygota (= Opisthoptera or Chiastomyaria) placed as sister to Odonata (reviewed in [3]).
What type of predators are adult Odonata?
All adult and larval odonates are predatory. Most Odonata larvae are sit-and-wait predators, which means they remain motionless until an insect or small fish approaches the larva.
Why do dragonflies connect?
Have you noticed dragonfly pairs flying about connected tail-to-head? The common explanation is that the dragonflies are mating. … In doing so, their bodies form a copulation, or mating, wheel which is vaguely heart-shaped. When this is accomplished, the pair unfold and fly away to find a suitable place to lay eggs.
What kind of mouthparts do Diptera have?
Mouthparts. The mouthparts of flies are adapted for sucking. Most flies have maxillae; many also have mandibles, elongate blades that overlie a groove in the labium and form a tubular channel for sucking liquids.
Which insect is without cerci?
structure in insects
Many hexapods have cerci (sensory appendages) on the 11th abdominal segment, which aid in identification of the telson. The Protura, Collembola, and Monura lack cerci.
What is meant by cerci with example?
Cerci (singular Cercus) are paired appendages on the abdomen of many species of insect. Cerci perform a sensory function. The size of cerci varies between species with some having barely discernible cerci while others, like earwigs, having stout and obvious cerci (sometimes called pincers).
What is the function of the ovipositor?
The ovipositor appendages of acridid insects (grasshoppers and locusts) consist of two pairs of shovel-shaped valves that are used to dig a deep chamber in the ground for egg burial, to manipulate the eggs, and to assist in capping the egg-pod with froth.
Does a dragonfly have antennae?
Yes, Dragonflies do have a pair of antennae. They are very tiny and difficult to see.
How many body segments does a dragonfly have?
An adult dragonfly has three distinct segments, the head, thorax, and abdomen as in all insects. It has a chitinous exoskeleton of hard plates held together with flexible membranes. The head is large with very short antennae. It is dominated by the two compound eyes, which cover most of its surface.
Why is dragonfly called dragonfly?
He stated that the Romanian word for Devil was “drac,” but that drac was also the Romanian word for dragon. He thought that eventually the Romanian name for the Devil’s Fly was erroneously translated to the English Dragon Fly and this eventually evolved into the “dragonfly!”
Are dragonflies Autotrophs?
Are dragonflies heterotrophs or Autotrophs? As for diet, aquatic invertebrates are a type of heterotroph known as omnivores; they eat plants, other insects, and, in some cases, small fish. Most aquatic insects, such as dragonflies or damselflies, begin their lives living directly in the water.
What is a male dragonfly called?
Common Clubtail (male) Common Clubtail (female) Hairy Dragonfly (male)
What colors are dragonflies?
Dragonflies come in all sorts of colors like yellow, red, brown, and blue; sometimes the wings have brown spots and bands. Male damselflies typically have iridescent wings and some type of colorful blue, green, or purple body, while the females usually have a golden brown color, even on their wings.
Do dragonflies drink water?
Dragonflies and their nymphs are voracious predators. … Do dragonflies drink? Adults get much of the water they need from the food they eat, but will drink from water surfaces or droplets of dew. Small nymphs feed on tiny aquatic invertebrates.
How many mosquitoes do bats eat?
As an average bat can eat 1,000 to 1,200 mosquitoes in a single hour, you won’t need many of them to help your mosquito issues (Source). A Big Bat Box that holds a colony of bats may have 200 flying mammals living inside. As such, you can see how easy it is to clear up your mosquito issues.
What level of classification is Odonata?
Odonata | |
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Phylum: | Arthropoda |
Class: | Insecta |
Subclass: | Pterygota |
Division: | Palaeoptera |
What is the insect order for stoneflies?
Plecoptera Temporal range: Permian–Recent | |
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Phylum: | Arthropoda |
Class: | Insecta |
Cohort: | Polyneoptera |
(unranked): | Anartioptera |
What is the habitat of Odonata?
Odonata (Dragonflies and Damselflies)
Odonates live in a wide range of habitats including, but not limited to seeps, brooks, creeks, streams, rivers, pools, ponds, lakes, reservoirs, swamps, and marshes. Some families can occur in nearly all of the above habitats while others are more restricted in their requirements.
Are dragonflies Holometabolous?
Dragonflies are hemimetabolous insects; they do not have a pupal stage and undergo an incomplete metamorphosis with a series of nymphal stages from which the adult emerges.
Is a dragonfly a Diptera?
Though many insects are called flies – such as dragonflies, butterflies and fireflies – only insects in the order Diptera (“two-wing”) are considered true flies. … Flies live in almost all habitats except the open ocean, even venturing into hot springs, tar pits and Antarctica.
Where do the larval forms of cicadas members of Order Hemiptera live and what do they feed on?
Periodical cicadas are best known for their extraordinary, highly synchronized life cycles. They spend most of their lives—13 or 17 years, depending on the species—in larval form, burrowed beneath the soil and feeding on fluids from plant roots.
Which dragonfly is known for its longest migration among insects?
New research suggests that Pantala flavescens, a dragonfly barely an inch and a half long, is migrating across oceans and between continents, overtaking the monarch butterfly as the insect that migrates the farthest.
What disease of humans is caused by members of Order phthiraptera vectoring Rickettsia Prowazekii?
Rickettsia Prowazekii (Epidemic Typhus)
R. prowazekii belongs to the genus Rickettsia and is the causative agent of epidemic typhus.