Larva


Larva

A 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. Larvae often have special ("larval") organs which do not occur in the adult form. The larvae of some species can become pubescent and not further develop into the adult form (for example, in some newts). This is a type of neoteny.It is a misunderstanding that the larval form always reflects the group's evolutionary history. It could be the case, but often the larval stage has evolved secondarily, as in insects. In these cases the larval form might differ more from the group's common origin than the adult form.

The early life stages of most fish species are considerably different from juveniles and adults of their species and are called "larvae".

Names of various kinds of larvae:


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  • larvă — LÁRVĂ, larve, s.f. Stadiu în dezvoltarea individuală a unor animale la ieşirea din ou, deosebit prin formă şi mod de viaţă de stadiul adult. – Din fr. larve. Trimis de LauraGellner, 17.05.2004. Sursa: DEX 98  LÁRVĂ s. 1. (zool.) (pop.) plod.… …   Dicționar Român

  • LARVA — Ml GRANS, «блуждающая личинка», обозначение кожной б ни, характеризующейся появлением ползучего красноватого валика, передвигающегося по коже и дающего различные фигуры хода. Синонимами L. т. являются обозначения: creeping disease,… …   Большая медицинская энциклопедия

  • Larva — Album par Eivør Pálsdóttir Pays  Féroé, iles !Îles Féroé Sortie …   Wikipédia en Français

  • larva — [lär′və] n. pl. larvae [lär′vē΄] or larvas [L, ghost, specter, akin to lar, household spirit: see LARES] the early, free living, immature form of any animal that changes structurally when it becomes an adult, usually by a complex metamorphosis… …   English World dictionary

  • Larva — Lar va (l[aum]r v[.a]), n.; pl. L. {Larv[ae]} (l[aum]r v[ae]), E. {Larvas} (l[aum]r v[.a]z). [L. larva ghost, specter, mask.] 1. (Zo[ o]l.) Any young insect from the time that it hatches from the egg until it becomes a pupa, or chrysalis. During… …   The Collaborative International Dictionary of English

  • larva — s.f. [dal lat. larva fantasma, maschera ]. 1. (etnol.) [secondo alcune credenze, anima errabonda, e appena visibile, di un defunto] ▶◀ fantasma, lemure, ombra, spettro, spirito. 2. (fig.) a. [creazione della fantasia: questa che abbiamo è… …   Enciclopedia Italiana

  • larva — 1650s, a ghost, specter, from L. larva (pl. larvae), earlier larua ghost, also mask; applied in biological sense 1768 by Linnaeus because immature forms of insects mask the adult forms. On the double sense of the Latin word, Carlo Ginzburg, among …   Etymology dictionary

  • larva — sustantivo femenino 1. Fase del desarrollo de algunos animales en la que ya han abandonado el huevo y se nutren por sí mismos, pero no han alcanzado todavía la fase adulta: Los insectos, los anfibios y algunos peces pasan por etapas de larva …   Diccionario Salamanca de la Lengua Española

  • larva — (Del lat. larva, fantasma). 1. f. Zool. Animal en estado de desarrollo, cuando ha abandonado las cubiertas del huevo y es capaz de nutrirse por sí mismo, pero aún no ha adquirido la forma y la organización propia de los adultos de su especie. 2.… …   Diccionario de la lengua española

  • larva — larva. См. личинка. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • larva — Forma inmadura de un animal, que sufre una metamorfosis antes de alcanzar el estado adulto. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico


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