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Brief Summary

    Vanessa atalanta: Brief Summary ( Italian )
    provided by wikipedia Italiano

    L'atalanta (Vanessa atalanta (Linnaeus, 1758)), nota anche come Vulcano, è un lepidottero appartenente alla famiglia Ninfalidi, diffuso nelle zone temperate di Europa, Asia e Nord America.

    Vanessa atalanta: Brief Summary ( Spanish; Castilian )
    provided by wikipedia Español

    La vanesa o almirante rojo, conocida popularmente también como atalanta (Vanessa atalanta) es una especie de lepidóptero ditrisio de la familia Nymphalidae propia de Europa, Asia y Norteamérica.​

    Vanessa atalanta: Brief Summary
    provided by wikipedia

    Vanessa atalanta, the red admiral or previously, the red admirable, is a well-characterized, medium-sized butterfly with black wings, orange bands, and white spots. It has a wingspan of about 2 inches (5 cm). It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. The red admiral is widely distributed across temperate regions of North Africa, the Americas, Europe, Asia, and the Caribbean. It resides in warmer areas, but migrates north in spring and sometimes again in autumn. Typically found in moist woodlands, the red admiral caterpillar's primary host plant is the stinging nettle (Urtica dioica); it can also be found on the false nettle (Boehmeria cylindrica). The adult butterfly drinks from flowering plants like Buddleia and overripe fruit. Red admirals are territorial; females will only mate with males that hold territory. Males with superior flight abilities are more likely to successfully court females. It is known as an unusually people-friendly butterfly, often landing on and using humans as perches.

    Brief Summary
    provided by EOL authors

    The Red Admiral (Vanessa atalanta) is a well-known colourful butterfly, found in temperate Europe, Asia and North America. The Red Admiral has a 45–50 mm (1.8–2.0 in) wing span (Shalaway 2004). The species is resident only in warmer areas, but migrates north in spring, and sometimes again in autumn.

    This large butterfly is identified by its striking dark brown, red, and black wing pattern. More specifically, the dark wings possess orange bands that cross the fore wings and on the outer edge of the hind wings; white spots on the dorsal fore wings near the front margin; reddish bars on dorsal surface of all four wings The caterpillar feeds on nettles, and the adult drinks from flowering plants like the Buddleia and overripe fruit.

    In northern Europe, it is one of the last butterflies to be seen before winter sets in, often feeding on the flowers of ivy on sunny days. The Red Admiral is also known to hibernate, re-emerging individuals showing prominently darker colourings than first brood subjects. The butterfly also flies on sunny winter days, especially in southern Europe.

    In North America, the Red Admiral generally has two broods from March through October. Most of North America must be recolonized each spring by southern migrants, but this species over-winters in south Texas.

    Brief Summary
    provided by Papillons de Jardin
    Grand papillon au vol puissant, le Vulcain peut migrer à la bonne saison jusqu'aux limites du cercle polaire. Il a aussi réussi à se glisser dans les bagages des hommes et a suivi les voyageurs aux Antilles, en Amérique du Nord et même en Nouvelle-Zélande. Cette performance est peut-être due à son habitude de chercher un abri aux premiers froids, car la dernière génération annuelle de ce papillon passe l'hiver sous forme adulte, habituellement dans les buissons de lierre, mais aussi dans les granges et les greniers. À l'automne, il se régale de fruits tombés au sol ou de la sève des arbres. Observation en vol : Avril à octobre. Nombre de générations par an : 1. Milieux de vie : Bords de chemins, friches, jardins, vergers, lisières, prairies, haies. Description Adulte Envergure : 60-65 mm. Apparence : Chez le mâle comme chez la femelle, le fond du dessus des ailes est noir, coupé sur l'aile avant par une bande rouge et marqué au bout par des taches blanches. Sur l'aile arrière, une bande rouge marquée de points noirs borde l'aile. Sur le dessous, les ailes avant portent, en plus terne, les mêmes marques qu'au dessus. Le dessous des ailes arrière est par contre marron marbré, cette couleur assurant un bon camouflage.

Comprehensive Description

Distribution

    Distribution
    provided by University of Alberta Museums
    Widespread throughout the northern hemisphere, occuring from northern Africa across most of Eurasia, and south to Guatemala in the New World; occasionally straying as far north as Iceland (Scott 1986).
    Distribution
    provided by Animal Diversity Web

    The range of Red Admirals extends around the Northern Hemisphere, from northern Canada to Guatemala in the western hemisphere, and from Scandinavia and northern Russia south to North Africa and China in the east. It is established on Bermuda, the Azores, and the Canary Islands in the Atlantic, and the Hawaiian islands in the Pacific. It has been introduced to and breeds in New Zealand as well.

    Biogeographic Regions: nearctic (Native ); palearctic (Native ); oriental (Native ); neotropical (Native ); oceanic islands (Introduced , Native )

    Other Geographic Terms: holarctic

Morphology

    Morphology
    provided by Animal Diversity Web

    The characteristic coloration of the Red Admiral Butterfly is a black hindwing with a red-orange marginal band; the dorsal forewing is also black with white markings near the apex. The wing span of the Red Admiral ranges between 1.75 and 3 inches. These butterflies tend to have a brighter coloration and a larger body mass during the summer months than during the winter. The legs and eyes of the Red Admiral tend to be hairy and the head is moderately large.

    A mature caterpillar of the larvae stage is cylindrical in shape and has branching spines arranged in rows lengthwise.

    Other Physical Features: ectothermic ; heterothermic ; bilateral symmetry

Diagnostic Description

    Diagnostic Description
    provided by EOL authors
    Red admirals have a wingspan of 1 7/8–2 1/2 inches (48-65 mm). The upper front wing is black with white apical spots and an orange median band. The upper hind wing has an orange marginal outer band. The underside of the front wing has a blue curcle with a dark center between the orange median band and an outer white rectangular spot.

Habitat

    Habitat
    provided by Animal Diversity Web

    Red Admirals tend to be found in moist environments such as marshes, woods, fields, and well-watered gardens. These butterflies cannot stand extreme winter cold and are forced to migrate southward during the winter months to warmer climates. During this migration they can be found in habitats ranging from subtropics to tundras. The caterpillars of this species live on the plants they feed on (see Food Habits below).

    Habitat Regions: temperate ; terrestrial

    Terrestrial Biomes: savanna or grassland ; forest

    Wetlands: marsh

    Other Habitat Features: suburban

Trophic Strategy

    Trophic Strategy
    provided by Animal Diversity Web

    Mature Red Admirals tend to feed on fermenting fruits, bird droppings, and sap from trees. Adult Red Admirals are fond of nectaring at composite flowers, such as milkweed, aster, and alfalfa. The food sources for the larva include nettles from the genus Urtica, pellitory from the genus Parietoria, and hops from the genus Humulus.

    Plant Foods: leaves; nectar; flowers; sap or other plant fluids

    Primary Diet: herbivore (Folivore , Nectarivore )

Cyclicity

    Cyclicity
    provided by University of Alberta Museums
    Occurs throughout the season, most common in June and again in August.

Life Cycle

    Life Cycle
    provided by University of Alberta Museums
    The light-green eggs are barrel-shaped and have nine vertical ribs. The mature larva are variable in colour, ranging from cream to grey, brown or black with fine white spots and a lateral stripe of greenish-yellow patches (Guppy & Shepard 2001). Larvae bear bear long branching spines that are generally black (Guppy & Shepard 2001). Larvae form a tent-like feeding shelter by tying together the edges of the leaf on which they are feeding (Guppy & Shepard 2001). It is unclear whether or not the Red Admiral survives the Alberta winter; the summer broods (mid-June onwards) are apparently the offspring of spring migrants. Remarkably, the Red Admiral is able to complete at least two broods in southern Canada after the arrival of spring migrants (Guppy & Shepard 2001, Layberry et al. 1998), with peak emergences in mid to late June and again in August.
    Life Cycle
    provided by Papillons de Jardin
    Les oeufs, crénelés, sont déposés isolément sur la face supérieure des feuilles de la plante hôte. Chenille Taille : 35 mm au dernier stade. Apparence : La chenille est noire, ponctuée de blanc et marquée sur les flancs de taches blanches, le corps couvert d'épines noires ramifiées. Attention toutefois : la chenille est très variable chez cette espèce, et on peut en trouver des spécimens ocres, vert grisâtre... Plante hôte : Ortie. Chrysalide: Chrysalide: anguleuse de couleur grise, elle est attachée au support par des sortes de crochets (le crémaster) et on distingue sur ses flancs des taches jaunâtres, d'étendue variable. Sur le dessus, deux rangées de petites épines s'étirent de part et d'autre le long du dos.

Reproduction

    Reproduction
    provided by Animal Diversity Web

    Male Red Admirals are territorial butterflies that patrol their areas in order to find female mates. The males typically perch upon sunlit spots, in the mid-afternoon, to wait for females to fly by. Once fertilized, female Red Admirals will lay their eggs on the upper surface of host plant leaves. The majority of Red Admiral butterflies are double-brooded (two generations grow a year); however, in Canada and the northern part of the United States they are single-brooded (one generation a year), and in the southern United States they are triple-brooded (three generations a year).

    The general life cycle of the Red Admiral butterfly goes from an egg, to a caterpillar (pupate in a chrysalis), that emerges as an adult. The adult then mates, oviposits, and starts the cycle again.

    Key Reproductive Features: semelparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; fertilization (Internal ); oviparous

Conservation Status

    Conservation Status
    provided by University of Alberta Museums
    Not of concern.
    Conservation Status
    provided by Animal Diversity Web

    The red admiral butterfly may appear to be rare at the outer edges of its range, but it is thought to be a secure species globally.

    US Federal List: no special status

    CITES: no special status

    State of Michigan List: no special status

Benefits

    Benefits
    provided by Animal Diversity Web

    The adult stage of the Red Admiral is rarely harmful because mature Red Admiral butterflies feed mainly on nectar. The caterpillar stage, however, damages the plants that it feeds on, though it is not generally known to be an agricultural pest. The plants the Red Admiral caterpillars tend to eat include nettles, hops, and pellitory.

    Benefits
    provided by Animal Diversity Web

    The aesthetic beauty of the Red Admiral is one of the most underrated values of this species. Due to the Red Admirals wide-spread range throughout the Americas, Europe, and Asia, their beauty can be enjoyed by many. Red Admirals are often found nectaring at red clover, aster, and Buddleia flowers; this combination of flowers and butterflies further enhances their aesthetic value.

Other Articles

    Untitled
    provided by Animal Diversity Web

    The distinctive red-orange band across the wing of the Red Admiral makes this butterfly species easy to distinguish from other species. The common name "Red Admiral" compares this band to the chevrons on a naval uniform.