Information about Ovipositor

Enlarge picture
Grasshopper ovipositor (the two cerci are also visible)
Enlarge picture
Female Megarhyssa laying eggs with her ovipositor.
The ovipositor is an organ used by some of the arthropods for oviposition, i.e. the laying of eggs. It consists of a maximum of three pairs of appendages formed to transmit the egg, to prepare a place for it, and to place it properly. In some of the insects the organ is used merely to attach the egg to some surface, but in many parasitic species (primarily in wasps and hymenoptera) it is a piercing organ as well. It is used by the grasshoppers to force a burrow in the earth to receive the eggs and by cicadas to pierce the wood of twigs for a similar purpose. Both long-horned grasshoppers and sawflies cut the tissues of plants by means of the ovipositor. None of these examples is quite as remarkable as the Megarhyssa species of Ichneumon wasp (parasitic Hymenoptera), the females of which have a slender ovipositor several inches long, used to drill into the wood of tree trunks. These species are parasitic in the larval stage on the larvae of wood-boring insects, hence the egg must be deposited in the burrow of the host (or, often, directly into the host's body as it is feeding.)

The sting of wasps, hornets, bees and some ants is also an ovipositor, in this case highly modified and associated with poison glands (to paralyze the prey so that the eggs can be laid without the host fighting back, and probably also to suppress the host's immune system so that it can't destroy the eggs or shake off the paralysis.) [1]

Some Roach-like fish, such as bitterlings, have an ovipositor as a tubular extension of the genital orifice in the breeding season for depositing eggs in the mantle cavity of the pond mussel.

The BBC documentary Walking with Dinosaurs portrayed a diplodocus mother using an ovipositor to lay her eggs, but it was pure speculation on the documentary's part.
organ (Latin: organum, "instrument, tool") is a group of tissues that perform a specific function or group of functions. Usually there is a main tissue and sporadic tissues. The main tissue is the one that is unique for the specific organ.
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Arthropoda
Latreille, 1829

Subphyla and Classes
  • Subphylum Trilobitomorpha
  • Trilobita - trilobites (extinct)
  • Subphylum Chelicerata

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Oviposition is the process of laying eggs by oviparous animals. The turtle is a great example. The turtle often lays eggs in strange places.

Some arthropods, for example, lay their eggs with an organ called the ovipositor.
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In most birds and reptiles, an egg (Latin ovum) is the zygote, resulting from fertilization of the ovum. To enable incubation the egg is usually kept within a favourable temperature range as it nourishes and protects the growing embryo.
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Insecta
Linnaeus, 1758

Orders
Subclass Apterygota
* Archaeognatha (bristletails)
* Thysanura (silverfish)
Subclass Pterygota
* Infraclass Paleoptera (Probably paraphyletic)

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Parasitism is one version of symbiosis ("living together"), a phenomenon in which two organisms which are phylogenetically unrelated co-exist over a prolonged period of time, usually the lifetime of one of the individuals.
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wasp is any insect of the order Hymenoptera and suborder Apocrita that is not a bee or ant. The suborder Symphyta includes the sawflies and wood wasps, which differ from members of Apocrita by having a broader connection between the mesosoma and metasoma.
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Hymenoptera
Linnaeus, 1758

Suborders

Apocrita
Symphyta

Hymenoptera is one of the larger orders of insects, comprising the sawflies, wasps, bees, and ants.
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Caelifera

Families

Superfamily: Tridactyloidea
  • Cylindrachaetidae
  • Ripipterygidae
  • Tridactylidae
Superfamily: Tetrigoidea
  • Tetrigidae
Superfamily: Eumastacoidea
  • Chorotypidae

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Cicadoidea

Family: Cicadidae
Westwood, 1840

Subfamilies

Cicadettinae
Cicadinae
Tettigadinae
Tibiceninae
See also article text.
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The WOOD callsign may refer to:
  • WOOD-TV – an NBC-affiliated television station in Grand Rapids, Michigan
  • WOOD (AM) – an AM radio station in Grand Rapids, Michigan
  • WOOD-FM - an FM radio station in Grand Rapids, Michigan




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Ensifera

Extant Superfamilies and families
  • Superfamily Grylloidea
  • Gryllidae - true crickets
  • Gryllotalpidae - mole crickets

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Symphyta redirects here. For the moth genus, see Symphyta (moth).


Sawflies



Scientific classification

Kingdom: Animalia

Phylum:
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Biological tissue is a collection of interconnected cells that perform a similar function within an organism.

The study of tissue is known as histology, or, in connection with disease, histopathology.
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Plantae
Haeckel, 1866[1]

Divisions

Green algae
  • Chlorophyta
  • Charophyta
Land plants (embryophytes)
  • Non-vascular land plants (bryophytes)

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Ichneumonoidea

Families

Braconidae
Ichneumonidae

The Ichneumon wasps are insects classified in the Parasitica group of the suborder Apocrita within the Order Hymenoptera.
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trunk refers to the main structural member of a tree that is supported by and directly attached to the roots and which in turn supports the branches. The trunk is also often called the bole.
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larva (Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians).

The larva can look completely different from the adult form, for example, a caterpillar differs from a butterfly.
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A stinger (or more correctly, sting) is a common term for a sharp organ or body part found in various animals and plants that usually delivers some kind of venom (usually piercing the skin of another animal) or an electric shock.
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wasp is any insect of the order Hymenoptera and suborder Apocrita that is not a bee or ant. The suborder Symphyta includes the sawflies and wood wasps, which differ from members of Apocrita by having a broader connection between the mesosoma and metasoma.
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Vespa
Linnaeus, 1758

Species
See text

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BEE may refer to:
  • Black Economic Empowerment, the policy of post-apartheid affirmative action in South Africa
  • Biblical Education by Extension, a Christian program designed to instruct theology in countries with weak theological infrastructure.

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Formicidae
Latreille, 1809

Subfamilies
  • Aenictogitoninae
  • Agroecomyrmecinae
  • Amblyoponinae (incl. "Apomyrminae")
  • Aneuretinae
  • Cerapachyinae
  • Dolichoderinae
  • Ecitoninae (incl.

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poisons are substances that can cause damage, illness, or death to organisms, usually by chemical reaction or other activity on the molecular scale, when a sufficient quantity is absorbed by an organism.
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gland is an organ in an animal's body that synthesizes a substance for release such as hormones, often into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland).
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R. rutilus

Binomial name
Rutilus rutilus
Linnaeus, 1758

The Roach (Rutilus rutilus, family Cyprinidae, plural also roach
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R. sericeus

Binomial name
Rhodeus sericeus
(Pallas, 1776)

The bitterling, Rhodeus sericeus, or Amur bitterling is a small fish of the carp family.
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A sex organ, or primary sexual characteristic, as narrowly defined, is any of those anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism; namely:

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mussel is used for members of several different families of clams (bivalve molluscs) from both saltwater and freshwater habitats. "Mussel" is a loose and inaccurate term, but it has historically been applied to those families of clams where the shell is longer than it is wide,
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