Information about Tympanal Organ
A hearing organ in insects, consisting of a membrane (tympanum) stretched across a frame backed by an air sac. Sounds vibrate the membrane, and the vibrations are sensed by a chordotonal organ.
Tympanal organs occur in just about any part of the insect: the thorax, the base of the wing, the abdomen, the legs, etc., depending on the group of insects. The structures are thought to have evolved independently many times. As a result, their position and structures are often used to help determine the taxonomy of the species. For example, all members of the Geometridae share distinctive paired abdominal tympanal organs that open towards the front side of the first abdominal segment. Within the organ, particular structures vary in shape and are used to indicate shared ancestry of subfamilies. In other families of Lepidoptera having abdominal tympanal organs, the opening may be in a different orientation and the structures differ in shape.
Tympanal organs occur in just about any part of the insect: the thorax, the base of the wing, the abdomen, the legs, etc., depending on the group of insects. The structures are thought to have evolved independently many times. As a result, their position and structures are often used to help determine the taxonomy of the species. For example, all members of the Geometridae share distinctive paired abdominal tympanal organs that open towards the front side of the first abdominal segment. Within the organ, particular structures vary in shape and are used to indicate shared ancestry of subfamilies. In other families of Lepidoptera having abdominal tympanal organs, the opening may be in a different orientation and the structures differ in shape.
References
Scoble, MJ. 1992. The Lepidoptera: Form, function, and diversity. Oxford Univ. Press. Insecta
Linnaeus, 1758
Orders
Subclass Apterygota
..... Click the link for more information.
Linnaeus, 1758
Orders
Subclass Apterygota
- * Archaeognatha (bristletails)
- * Thysanura (silverfish)
- * Infraclass Paleoptera (Probably paraphyletic)
..... Click the link for more information.
Tympanum or timpanum or thympanon (Latin form) or tympanon (Greek form) may mean:
..... Click the link for more information.
- In biology, tympanum – Eardrum
- In classical architecture, tympanum is an architectural element located within the arch or Pediment
- In music,
..... Click the link for more information.
Chordotonal organs are stretch receptors in insects. They are used to detect the position of the body segments and appendages, or, in tympanal organs, the vibrations caused by sounds.
..... Click the link for more information.
References
Scoble, Malcolm J...... Click the link for more information.
thorax is a division of an animal's body that lies between the head and the abdomen.
In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae and the ribs. It extends from the neck to the diaphragm, not including the upper limbs.
..... Click the link for more information.
In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae and the ribs. It extends from the neck to the diaphragm, not including the upper limbs.
..... Click the link for more information.
To comply with Wikipedia's this section of the article needs a complete rewrite.
Please discuss this issue on the talk page and read the layout guide to make sure the section will be inclusive of all essential details. This article has been tagged since September 2007.
..... Click the link for more information.
Please discuss this issue on the talk page and read the layout guide to make sure the section will be inclusive of all essential details. This article has been tagged since September 2007.
..... Click the link for more information.
Geometridae
Leach, 1815
Diversity
about 2,000 genera
26,000 species
Type species
Geometra papilionaria
(large emerald moth)
Subfamilies
Alsophilinae
Archiearinae
Desmobathrinae
Ennominae
Geometrinae
..... Click the link for more information.
Leach, 1815
Diversity
about 2,000 genera
26,000 species
Type species
Geometra papilionaria
(large emerald moth)
Subfamilies
Alsophilinae
Archiearinae
Desmobathrinae
Ennominae
Geometrinae
..... Click the link for more information.
Clipper Parthenos sylvia]]
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
..... Click the link for more information.
The Clipper Parthenos sylvia
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
..... Click the link for more information.
This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.
Herod_Archelaus
