Proleg: Difference between revisions
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[[File:Caterpillar-description.jpg|thumb|175px|left|prolegs labelled ''J'']] |
[[File:Caterpillar-description.jpg|thumb|175px|left|prolegs labelled ''J'']] |
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[[Image:Actias luna 5th instar 3 sjh.JPG|thumb|250px|right|''[[Actias luna]]'' caterpillar with 5 prolegs including anal clasper]] |
[[Image:Actias luna 5th instar 3 sjh.JPG|thumb|250px|right|''[[Actias luna]]'' caterpillar with 5 prolegs including anal clasper]] |
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A '''Proleg''' is the small fleshy, stub structure found on the ventral surface of the [[abdomen]] of most [[larva]]l forms of [[insect]]s of the [[Order (biology)|order]] [[Lepidoptera]], though they can also be found on other larval insects such as [[symphyta|sawflies]] and a few types of [[Diptera|flies]]. |
A '''Proleg''' is the small fleshy, stub structure found on the ventral surface of the [[abdomen]] of most [[larva]]l forms of [[insect]]s of the [[Order (biology)|order]] [[Lepidoptera]], though they can also be found on other larval insects such as [[symphyta|sawflies]] and a few types of [[Diptera|flies]]. The prolegs of hymenoptera and lepidoptera evolved independant of each other.<ref>{{cite doi|10.1007/s00427-001-0182-3}}</ref> |
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Prolegs of lepidopteran larvae have a small circle of gripping hooks, called "crochets". The arrangement of the crochets can be helpful in identification to [[Rank (zoology)|family]] level. Prolegs are not true [[arthropod leg|legs]]; they are not jointed, and so lack the five segments (coxa, trochanter, femur, tibia, tarsus) that true insect legs possess. They have their own musculature, but it is limited, and much of the movement of the prolegs is accomplished via [[hydraulics]]. |
Prolegs of lepidopteran larvae have a small circle of gripping hooks, called "crochets". The arrangement of the crochets can be helpful in identification to [[Rank (zoology)|family]] level. Prolegs are not true [[arthropod leg|legs]]; they are not jointed, and so lack the five segments (coxa, trochanter, femur, tibia, tarsus) that true insect legs possess. They have their own musculature, but it is limited, and much of the movement of the prolegs is accomplished via [[hydraulics]]. |
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Revision as of 18:11, 14 May 2012
A Proleg is the small fleshy, stub structure found on the ventral surface of the abdomen of most larval forms of insects of the order Lepidoptera, though they can also be found on other larval insects such as sawflies and a few types of flies. The prolegs of hymenoptera and lepidoptera evolved independant of each other.[1]
Prolegs of lepidopteran larvae have a small circle of gripping hooks, called "crochets". The arrangement of the crochets can be helpful in identification to family level. Prolegs are not true legs; they are not jointed, and so lack the five segments (coxa, trochanter, femur, tibia, tarsus) that true insect legs possess. They have their own musculature, but it is limited, and much of the movement of the prolegs is accomplished via hydraulics.
See also
References
- Peterson, A. 1948. Larvae Of Insects. Part I: Lepidoptera & Hymenoptera; Part II: Coleoptera, Diptera, Neuroptera, Siphonaptera, Mecoptera, Trichoptera. Columbus, OH.
- Richards, O.W. & R.G. Davies. 1977. Imm's General Textbook of Entomology, 10th ed. (2 Volumes). Chapman & Hall, London.
- Snodgrass, R.E. 1935 (1993 reprint). Principles of Insect Morphology. Cornell University Press, Ithaca, NY.
External links
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- ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1007/s00427-001-0182-3, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with
|doi=10.1007/s00427-001-0182-3instead.