| Large tortoiseshell | |
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| Upperside | |
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| Underside | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Nymphalidae |
| Genus: | Nymphalis |
| Species: | N. polychloros |
| Binomial name | |
| Nymphalis polychloros | |
| Synonyms [1] | |
List
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The large tortoiseshell or blackleg tortoiseshell (Nymphalis polychloros) is a butterfly of the family Nymphalidae. [2]
Subspecies include: [1]
The species is found in North Africa, southern and central Europe, Turkey, southern Russia, the central and southern Urals, Kazakhstan and the Himalayas. In Central Europe they occur in the warmer regions, but have become generally rare. By contrast, they are still common in the Mediterranean and Southern Alps. They live in sparse forests and their edges, on dry shrubbery and in orchards. [1] [3] It is an extreme rarity in Britain, although it used to be widespread throughout England and Wales. Most of the specimens seen in Britain are thought to be captive-bred releases. These butterflies mainly inhabit woodland, especially with sallows (willows). [4] However, there are indications that the large tortoiseshell is recolonising southern England. [5]
Nymphalis polychloros has a wingspan of 68–72 millimetres (2.7–2.8 in) in males, of 72–75 millimetres (2.8–3.0 in) in females. [4] These medium to large butterflies have orange to red wings with black and yellow patches. Both wings with yellowish submarginal lunules, upon which follows a black band which is likewise composed of lunules and bears on the hindwing small blue spots. The underside of the wings is smoky brown with darker shades and black transverse pencilling. There is no sexual dimorphism. This species looks very similar to the small tortoiseshell (Aglais urticae), but it is more closely related to the Camberwell beauty and Nymphalis xanthomelas It differs from the small tortoiseshell by its larger size (45–62 mm. wingspan in Aglais urticae) and by the more orange ground colour of the upper surface of its wings and the orange base of its hindwings. The forewing is orange-brown, with 3 costal black blotches, 3 large black spots in the disc posteriorly and a narrow blackish terminal band – less bright than those of A. urticae, and lacking the apical white spot and the marginal blue dots of that species. Compared to the yellow-legged tortoiseshell it has yellower interspaces between the black blotches on the costal edges of its forewings and the dark marginal band is narrower. The surest way to recognize it, however, is by its dark haired tarsi yellow-legged tortoiseshell's tarsal hairs are light-coloured.
The adult insect (imago) over-winters in dry dark places, such as hollow trees or out buildings. In late February or early March the butterflies emerge and mate. The females lay their pale green eggs (ova) in a continuous band around the upper twigs of elm ( Ulmus spp.), sallow ( Salix caprea and Salix viminalis ), pear ( Pyrus spp.), Malus , Sorbus , Crataegus , Populus , and Prunus spp. trees. [1] [6]
The caterpillars (larvae) are gregarious, and systematically strip the topmost twigs of the tree bare. They seem to have little defence against predation by birds. It is possible that their decline and extinction in the British Isles (late 1970s) was owing to the loss of predatory birds, which previously had preyed upon smaller birds if they strayed to the tops of these trees.
The full-grown larva spins a silk girdle around a twig further down the tree, and hangs from this by means of hooks (cremaster) at its rear end, to pupate. The chrysalis (pupa) is greyish brown with a slight silvery sheen. The species is univoltine, i.e. there is only one generation per year, [4] the imagines emerging in July and August seek out sources high in sugar on which to feed. Tree sap and fermenting fruit are particularly popular.
The small tortoiseshell is a colourful Eurasian butterfly in the family Nymphalidae. Adults feed on nectar and may hibernate over winter; in warmer climates they may have two broods in a season. While the dorsal surface of the wings is vividly marked, the ventral surface is drab, providing camouflage. Eggs are laid on the common nettle, on which the larvae feed.
Nymphalis antiopa, known as the mourning cloak in North America and the Camberwell beauty in Britain, is a large butterfly native to Eurasia and North America. The immature form of this species is sometimes known as the spiny elm caterpillar. Other older names for this species include grand surprise and white petticoat. A powerful flier, this species is sometimes found in areas far from its usual range during migration.
Apatura iris, the purple emperor, is a Palearctic butterfly of the family Nymphalidae.
Anthene emolus, the ciliate blue, is a small butterfly found in India and southeast Asia that belongs to the lycaenids or blues family. The species was first described by Jean-Baptiste Godart in 1823.
Nymphalini is a tribe of nymphalid brush-footed butterflies. Common names include admirals, anglewings, commas, and tortoiseshells, but none of these is specific to one particular genus.
Nymphalis, commonly known as the tortoiseshells or anglewing butterflies, is a genus of brush-footed butterflies. The genera Aglais, Inachis, Polygonia and Kaniska, were sometimes included as subgenera of Nymphalis but they may instead be treated as distinct genera. See also anglewing butterflies. For other butterflies named tortoiseshells, see the genus Aglais.
The scarce fritillary is a species of butterfly in the family Nymphalidae. It is found in Austria, Bulgaria, Czech Republic, Finland, France, Germany, Greece, Hungary, Kazakhstan, Lithuania, Luxembourg, Poland, Romania, Russia, Serbia and Montenegro, and Sweden. and East across the Palearctic to Mongolia.
Nymphalis xanthomelas, the scarce tortoiseshell, is a species of nymphalid butterfly found in eastern Europe and Asia. This butterfly is also referred as yellow-legged tortoiseshell or large tortoiseshell.
Nymphalis vaualbum or N. l-album, the Compton tortoiseshell, or false comma, is a species of butterfly in the family Nymphalidae.
Catocala electa, the rosy underwing, is a moth of the family Erebidae. The species was first described by Karl Friedrich Vieweg in 1790. It can be found in Europe and Asia.
Aglais milberti, the fire-rim tortoiseshell or Milbert's tortoiseshell, is considered the only species of the proposed Aglais genus that occurs in North America.
Aglais caschmirensis, the Indian tortoiseshell, is a species of nymphalid butterfly found in the northern regions of the Indian subcontinent, primarily in the Himalayas.
Papilio ornythion, the ornythion swallowtail, is a swallowtail butterfly of the subfamily Papilioninae. It is found in Mexico and Guatemala. It is occasionally recorded from central and southern Texas and New Mexico and rarely from southern Arizona and Kansas.
Papilio astyalus, the broad-banded swallowtail or Astyalus swallowtail, is a butterfly of the family Papilionidae. It is found from Mexico south to Argentina. It is occasionally reported from southern Texas and rare strays can be found up to southern Arizona and northern Texas.
Aglais rizana, the mountain tortoiseshell, is a species of nymphalid butterfly found in Asia.
