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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.
The traditional modes of reproduction include oviparity, taken to be the ancestral condition, traditionally where either unfertilised oocytes or fertilised eggs are spawned, and viviparity traditionally including any mechanism where young are born live, or where the development of the young is supported by either parent in or on any part of their body.
Male genitalia of Lepidoptera. The main component of the male reproductive system is the testicle, suspended in the body cavity by tracheae and the fat body.The more primitive apterygote insects have a single testis, and in some lepidopterans the two maturing testes are secondarily fused into one structure during the later stages of larval development, although the ducts leading from them ...
Podagrion species are only 2-3mm, with the female's ovipositor effectively doubling her length. [3] The most distinct characteristic of this tiny wasp is the enlarged, clawed femur. Together with the tibia, this structure bears a striking resemblance to the raptorial forelegs of the mantis the wasp parasitizes.
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 ...
The females of the species use their ovipositor to deposit their eggs into dead and dying deciduous trees [3] such as beech, elm, maple, and oak, which the larvae burrow inside of and feed upon. [4] [6] They usually deposit between two and seven eggs into the tree. The female will die after this process, and carcasses can sometimes be seen ...
The ovipositor is rather short in comparison to other insects. It is covered in part by the edges of the last sternum. The abdomen of the male curves and twists in a 90° angle around the female's to insert the claspers between the ovipositor and the sternum. The abdomen of the male then contracts in a peristaltic manner.
The adult female has an elongate external ovipositor, some 2 to 5 mm long, which reflects the thickness of the syconium wall of the host fig species. To stabilize the long ovipositor during oviposition, the proximal gastral segments can telescope outwards as the abdomen is lifted up, which in some species leans forward beyond the head. [ 2 ]