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Ovipositor of long-horned grasshopper (the two cerci are also visible) The ovipositor is a tube-like organ used by some animals , especially insects , for the laying of eggs . In insects, an ovipositor consists of a maximum of three pairs of appendages.
A more complicated form of epigyne is found in spiders of the genus Araneus, where there is developed an appendage which is usually soft and flexible, and which is termed the scape or ovipositor. When there is a well-developed scape, the tip of it is usually more or less spoon-shaped. This part of the scape is termed the cochlear.
Megarhyssa male adults reach body lengths going from 2.3 to 3.8 cm (0.9 to 1.6 inches), while female adults can measure from 3.5 to 7.5 cm (1.5 to 3 inches). [3] Both sexes can be distinguished because females have an extremely slender, and long organ to lay eggs called the ovipositor.
Sawfly laying eggs in a plant, using the serrated saw-like ovipositor for which the group is named. The suborder name "Symphyta" derives from the Greek word symphyton, meaning 'grown together', referring to the group's distinctive lack of a wasp waist between prostomium and peristomium. [4]
Most female insects have an egg-laying tube, or ovipositor; it is absent in termites, parasitic lice, many Plecoptera, and most Ephemeroptera. Ovipositors take two forms: The anal-genital part of the abdomen. which consists generally of segments 8 or 9 to the abdominal apex
Dufour's gland is an abdominal gland of certain insects, part of the anatomy of the ovipositor or sting apparatus in female members of Apocrita. The diversification of Hymenoptera took place in the Cretaceous and the gland may have developed at about this time (200 million years ago) as it is present in all three groups of Apocrita , the wasps ...
Curculio glandium is a member of the genus Curculio, which comprises seed beetles. All members of Curculio have characteristically long rostrums and ovipositors, an adaptation that specifically developed by their reliance on seeds for food and reproduction.
In the majority, however, it is modified for piercing, and, in some cases, is several times the length of the body. In some species, the ovipositor has become modified as a stinger, and the eggs are laid from the base of the structure, rather than from the tip, which is used only to inject venom. The sting is typically used to immobilize prey ...