For other uses, see Butterfly (disambiguation).
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Temporal range: Eocene-Recent, 45–0Ma
Scientific classification
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Butterflies are part of the class of insects in the order Lepidoptera. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). Butterfly fossils date to the mid Eocene epoch, 40–50 million years ago.[1]

Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have parasitic relationships with organisms including protozoans, flies, ants, other invertebrates, and vertebrates.[2][3] Some species are pests because in their larval stages they can damage domestic crops or trees; however, some species are agents of pollination of some plants, and caterpillars of a few butterflies (e.g., harvesters) eat harmful insects. Culturally, butterflies are a popular motif in the visual and literary arts.

File:Butterfly flying.webm
Butterfly flying around a flower


The Oxford English Dictionary derives the word from a combination of butter and fly. It adds: "the reason of the name is unknown", and refers to Hensleigh Wedgwood, who "points out a Dutch synonym boterschijte in Kilian, which suggests that the insect was so called from the appearance of its excrement".[4]

Donald Ringe writes that the name is derived from Middle English buterflie, butturflye, boterflye, from Old English butorflēoge, buttorflēoge, buterflēoge, perhaps a compound of butor (beater), mutation of bēatan (to beat), and flēoge (fly).[5]

Life cycle

File:Mating Common Buckeyes.jpg
Mating Junonia coenia (common buckeye) butterflies

Butterflies in their adult stage can live from a week to nearly a year depending on the species. Many species have long larval life stages while others can remain dormant in their pupal or egg stages and thereby survive winters.[6]

Butterflies may have one or more broods per year. The number of generations per year varies from temperate to tropical regions with tropical regions showing a trend towards multivoltinism.


Butterfly eggs are protected by a hard-ridged outer layer of shell, called the chorion. This is lined with a thin coating of wax which prevents the egg from drying out before the larva has had time to fully develop. Each egg contains a number of tiny funnel-shaped openings at one end, called micropyles; the purpose of these holes is to allow sperm to enter and fertilize the egg. Butterfly and moth eggs vary greatly in size between species, but they are all either spherical or ovate.[citation needed]

Butterfly eggs are fixed to a leaf with a special glue which hardens rapidly. As it hardens it contracts, deforming the shape of the egg. This glue is easily seen surrounding the base of every egg forming a meniscus. The nature of the glue is unknown and is a suitable subject for research. The same glue is produced by a pupa to secure the setae of the cremaster. This glue is so hard that the silk pad, to which the setae are glued, cannot be separated.[citation needed]

Eggs are almost invariably laid on plants. Each species of butterfly has its own hostplant range and while some species of butterfly are restricted to just one species of plant, others use a range of plant species, often including members of a common family.[citation needed]

The egg stage lasts a few weeks in most butterflies but eggs laid close to winter, especially in temperate regions, go through a diapause (resting) stage, and the hatching may take place only in spring. Other butterflies may lay their eggs in the spring and have them hatch in the summer. These butterflies are usually northern species, such as the mourning cloak (Camberwell beauty) and the large and small tortoiseshell butterflies.[citation needed]


Butterfly larvae, or caterpillars, consume plant leaves and spend practically all of their time in search of food. Although most caterpillars are herbivorous, a few species such as Spalgis epius and Liphyra brassolis are entomophagous (insect eating).

Some larvae, especially those of the Lycaenidae, form mutual associations with ants. They communicate with the ants using vibrations that are transmitted through the substrate as well as using chemical signals.[7][8] The ants provide some degree of protection to these larvae and they in turn gather honeydew secretions. Others such as Phengaris arion communicate with ants to form a parasitic relationship.[9]

Caterpillars mature through a series of stages called instars. Near the end of each instar, the larva undergoes a process called apolysis, in which the cuticle, a tough outer layer made of a mixture of chitin and specialized proteins, is released from the softer epidermis beneath, and the epidermis begins to form a new cuticle beneath. At the end of each instar, the larva moults the old cuticle, and the new cuticle expands, before rapidly hardening and developing pigment. Development of butterfly wing patterns begins by the last larval instar.

Butterfly caterpillars have three pairs of true legs from the thoracic segments and up to six pairs of prolegs arising from the abdominal segments. These prolegs have rings of tiny hooks called crochets that help them grip the substrate.[10]

Some caterpillars have the ability to inflate parts of their head to appear snake-like. Many have false eye-spots to enhance this effect. Some caterpillars have special structures called osmeteria which are everted to produce foul-smelling chemicals. These are used in defense.

Host plants often have toxic substances in them and caterpillars are able to sequester these substances and retain them into the adult stage. This makes them unpalatable to birds and other predators. Such unpalatibility is advertised using bright red, orange, black or white warning colours, a practice known as aposematism. The toxic chemicals in plants are often evolved specifically to prevent them from being eaten by insects. Insects in turn develop countermeasures or make use of these toxins for their own survival. This "arms race" has led to the coevolution of insects and their host plants.[11]

Wing development

File:Butterfly Wing close-up.jpg
Detail of a butterfly wing

Wings or wing pads are not visible on the outside of the larva, but when larvae are dissected, tiny developing wing disks can be found on the second and third thoracic segments, in place of the spiracles that are apparent on abdominal segments. Wing disks develop in association with a trachea that runs along the base of the wing, and are surrounded by a thin peripodial membrane, which is linked to the outer epidermis of the larva by a tiny duct.

Wing disks are very small until the last larval instar, when they increase dramatically in size, are invaded by branching tracheae from the wing base that precede the formation of the wing veins, and begin to develop patterns associated with several hallmarks of the wing.

Near pupation, the wings are forced outside the epidermis under pressure from the hemolymph, and although they are initially quite flexible and fragile, by the time the pupa breaks free of the larval cuticle they have adhered tightly to the outer cuticle of the pupa (in obtect pupae). Within hours, the wings form a cuticle so hard and well-joined to the body that pupae can be picked up and handled without damage to the wings.[citation needed]


When the larva is fully grown, hormones such as prothoracicotropic hormone (PTTH) are produced. At this point the larva stops feeding and begins "wandering" in the quest of a suitable pupation site, often the underside of a leaf.

The larva transforms into a pupa (or chrysalis) by anchoring itself to a substrate and moulting for the last time. The chrysalis is usually incapable of movement, although some species can rapidly move the abdominal segments or produce sounds to scare potential predators.

The pupal transformation into a butterfly through metamorphosis has held great appeal to mankind. To transform from the miniature wings visible on the outside of the pupa into large structures usable for flight, the pupal wings undergo rapid mitosis and absorb a great deal of nutrients. If one wing is surgically removed early on, the other three will grow to a larger size. In the pupa, the wing forms a structure that becomes compressed from top to bottom and pleated from proximal to distal ends as it grows, so that it can rapidly be unfolded to its full adult size. Several boundaries seen in the adult color pattern are marked by changes in the expression of particular transcription factors in the early pupa.[citation needed]

Adult or imago

The adult, sexually mature, stage of the insect is known as the imago. As Lepidoptera, butterflies have four wings that are covered with tiny scales (see photo). The fore and hindwings are not hooked together, permitting a more graceful flight. An adult butterfly has six legs, but in the nymphalids, the first pair is reduced. After it emerges from its pupal stage, a butterfly cannot fly until the wings are unfolded. A newly emerged butterfly needs to spend some time inflating its wings with hemolymph and let them dry, during which time it is extremely vulnerable to predators. Some butterflies' wings may take up to three hours to dry while others take about one hour. Most butterflies and moths will excrete excess dye after hatching. This fluid may be white, red, orange, or in rare cases, blue.[citation needed]

External morphology

Adult butterflies have four wings: a forewing and hindwing on both the left and the right side of the body. The body is divided into three segments: the head, thorax, and the abdomen. They have two antennae, two compound eyes, and a proboscis.


Butterflies are characterized by their scale-covered wings. The coloration of butterfly wings is created by minute scales. These scales are pigmented with melanins that give them blacks and browns, but blues, greens, reds and iridescence are usually created not by pigments but the microstructure of the scales. This structural coloration is the result of coherent scattering of light by the scales.[12][13][14] The scales cling somewhat loosely to the wing and come off easily without harming the butterfly.

Photographic and light microscopic images 150px 150px 150px
Zoomed-out view of an Inachis io. Closeup of the scales of the same specimen. High magnification of the coloured scales (probably a different species).
Electron microscopic images 150px 150px 150px 150px
A patch of wing Scales close up A single scale Microstructure of a scale
Magnification Approx. ×50 Approx. ×200 ×1000 ×5000


Many adult butterflies exhibit polymorphism, showing differences in appearance. These variations include geographic variants and seasonal forms. In addition many species have females in multiple forms, often with mimetic forms. Sexual dimorphism in coloration and appearance is widespread in butterflies. In addition many species show sexual dimorphism in the patterns of ultraviolet reflectivity, while otherwise appearing identical to the unaided human eye. Most of the butterflies have a sex-determination system that is represented as ZW with females being the heterogametic sex (ZW) and males homogametic (ZZ).[15]

Genetic abnormalities such as gynandromorphy also occur from time to time. In addition many butterflies are infected by Wolbachia and infection by the bacteria can lead to the conversion of males into females[16] or the selective killing of males in the egg stage.[17]


File:Heliconius mimicry.png
The Heliconius butterflies from the tropics of the Western Hemisphere are the classical model for Müllerian mimicry.[18]

Batesian and Mullerian mimicry in butterflies is common. Batesian mimics imitate other species to enjoy the protection of an attribute they do not share, aposematism in this case. The common Mormon of India has female morphs which imitate the unpalatable red-bodied swallowtails, the common rose and the crimson rose. Mullerian mimicry occurs when aposematic species evolve to resemble each other, presumably to reduce predator sampling rates, the Heliconius butterflies from the Americas being a good example.

Wing markings called eyespots are present in some species; these may have an automimicry role for some species. In others, the function may be intraspecies communication, such as mate attraction. In several cases, however, the function of butterfly eyespots is not clear, and may be an evolutionary anomaly related to the relative elasticity of the genes that encode the spots.[19][20]

Seasonal polyphenism

<div name="wet-dry forms"/>Many of the tropical butterflies have distinctive seasonal forms. This phenomenon is termed seasonal polyphenism and the seasonal forms of the butterflies are called the dry-season and wet-season forms. How the season affects the genetic expression of patterns is still a subject of research.[21] Experimental modification by ecdysone hormone treatment has demonstrated that it is possible to control the continuum of expression of variation between the wet and dry-season forms.[22] The dry-season forms are usually more cryptic and it has been suggested that the protection offered may be an adaptation. Some also show greater dark colours in the wet-season form which may have thermoregulatory advantages by increasing ability to absorb solar radiation.[23]

Bicyclus anynana is a species of butterfly that exhibits a clear example of seasonal polyphenism. These butterflies, endemic to Africa, have two distinct phenotypic forms that alternate according to the season. The wet-season forms have large, very apparent ventral eyespots whereas the dry-season forms have very reduced, often nonexistent, ventral eyespots. Larvae that develop in hot, wet conditions develop into wet-season adults whereas those growing in the transition from the wet to the dry season, when the temperature is declining, develop into dry-season adults.[24] This polyphenism has an adaptive role in B. anynana. In the dry-season it is disadvantageous to have conspicuous eyespots because B. anynana blend in with the brown vegetation better without eyespots. By not developing eyespots in the dry-season they can more easily camouflage themselves in the brown brush. This minimizes the risk of visually mediated predation. In the wet-season, these brown butterflies cannot as easily rely on cryptic coloration for protection because the background vegetation is green. Thus, eyespots, which may function to decrease predation, are beneficial for B. anynana to express.[25]


File:Blue black butterfly.png
The liquid droplet underneath the right-rear wing of this butterfly was excreted through a hole in its abdomen.
File:Antennae ctb.png
Antennal shape in the Lepidoptera from C. T. Bingham (1905)

Butterflies feed primarily on nectar from flowers. Some also derive nourishment from pollen,[26] tree sap, rotting fruit, dung, decaying flesh, and dissolved minerals in wet sand or dirt. Butterflies are important as pollinators for some species of plants, although, in general, they do not carry as much pollen load as bees. They are, however, capable of moving pollen over greater distances.[27] Flower constancy has been observed for at least one species of butterfly.[28]

Adult butterflies consume only liquids, ingested through the proboscis. They sip water from damp patches for hydration and feed on nectar from flowers, from which they obtain sugars for energy, and sodium and other minerals vital for reproduction. Several species of butterflies need more sodium than that provided by nectar and are attracted by sodium in salt; they sometimes land on people, attracted by the salt in human sweat. Some butterflies also visit dung, rotting fruit or carcasses to obtain minerals and nutrients. In many species, this mud-puddling behaviour is restricted to the males, and studies have suggested that the nutrients collected may be provided as a nuptial gift along with the spermatophore, during mating.[29]

Butterflies use their antennae to sense the air for wind and scents. The antennae come in various shapes and colours; the hesperids have a pointed angle or hook to the antennae, while most other families show knobbed antennae. The antennae are richly covered with sensory organs known as sensillae. A butterfly's sense of taste, 200 times stronger than a human's,[30] is coordinated by chemoreceptors on the tarsi, or feet, which work only on contact, and are used to determine whether an egg-laying insect's offspring will be able to feed on a leaf before eggs are laid on it.[31] Many butterflies use chemical signals, pheromones, and specialized scent scales (androconia) and other structures (coremata or "hair pencils" in the Danaidae) are developed in some species.

Vision is well developed in butterflies and most species are sensitive to the ultraviolet spectrum. Many species show sexual dimorphism in the patterns of UV reflective patches.[32] Color vision may be widespread but has been demonstrated in only a few species.[33][34]

Some butterflies have organs of hearing and some species are also known to make stridulatory and clicking sounds.[35]

File:Monarch butterflies.jpg
Monarch butterflies

Many butterflies, such as the monarch butterfly, are migratory and capable of long distance flights. They migrate during the day and use the sun to orient themselves. They also perceive polarized light and use it for orientation when the sun is hidden.[36]

Many species of butterfly maintain territories and actively chase other species or individuals that may stray into them. Some species will bask or perch on chosen perches. The flight styles of butterflies are often characteristic and some species have courtship flight displays. Basking is an activity which is more common in the cooler hours of the morning. Many species will orient themselves to gather heat from the sun. Some species have evolved dark wingbases to help in gathering more heat and this is especially evident in alpine forms.[37]


File:Butterfly midflight.jpg
Heteronympha merope taking off
See also Insect flight

Like many other members of the insect world, the lift generated by butterflies is more than what can be accounted for by steady-state, non-transitory aerodynamics. Studies using Vanessa atalanta in a windtunnel show that they use a wide variety of aerodynamic mechanisms to generate force. These include wake capture, vortices at the wing edge, rotational mechanisms and Weis-Fogh 'clap-and-fling' mechanisms. The butterflies were also able to change from one mode to another rapidly.[38]


Main article: Lepidoptera migration
See also Insect migration
Many butterflies migrate over long distances.
Monarch migration route
File:Angangueo monarchs.jpg
Overwintering monarchs cluster on oyamel trees in a preserve outside of Angangueo, Michoacan, Mexico; one tree is completely covered in butterflies.

The eastern population of monarchs migrates hundreds to thousands of miles to overwintering sites in Mexico. There is a northward migration in the spring.[39][40]

Other well known migratory species include the painted lady and several of the Danaine butterflies. Spectacular and large scale migrations associated with the monsoons are seen in peninsular India.[41] Migrations have been studied in more recent times using wing tags and also using stable hydrogen isotopes.[42][43]

Butterflies have been shown to navigate using time compensated sun compasses. They can see polarized light and therefore orient even in cloudy conditions. The polarized light in the region close to the ultraviolet spectrum is suggested to be particularly important.[44]

It is suggested that most migratory butterflies are those that belong to semi-arid areas where breeding seasons are short.[45] The life-histories of their host plants also influence the strategies of the butterflies.[46]


File:Leopard Lacewing Cethosia cyane 2 Richard Bartz.jpg
Wings of a butterfly (leopard lacewing Cethosia cyane) become increasingly damaged as they age, and do not repair
See also Defense in insects

Butterflies are threatened in their early stages by parasitoids and in all stages by predators, diseases and environmental factors. They protect themselves by a variety of means.

Chemical defenses are widespread and are mostly based on chemicals of plant origin. In many cases the plants themselves evolved these toxic substances as protection against herbivores. Butterflies have evolved mechanisms to sequester these plant toxins and use them instead in their own defense.[47] These defense mechanisms are effective only if they are also well advertised and this has led to the evolution of bright colours in unpalatable butterflies. This signal may be mimicked by other butterflies. These mimetic forms are usually restricted to the females.

Cryptic coloration is found in many butterflies. Some like the oakleaf butterfly and autumn leaf are remarkable imitations of leaves.[48] As caterpillars, many defend themselves by freezing and appearing like sticks or branches. Some papilionid caterpillars resemble bird dropping in their early instars. Some caterpillars have hairs and bristly structures that provide protection while others are gregarious and form dense aggregations. Some species also form associations with ants and gain their protection (See Myrmecophile).

Behavioural defenses include perching and wing positions to avoid being conspicuous. Some female Nymphalid butterflies are known to guard their eggs from parasitoid wasps.[49]

File:Bird-damaged Speckled Wood Pararge aegeria.JPG
Eyespots on wings of speckled wood, Pararge aegeria, appear to distract predators from attacking the head. The left hind wing has been badly damaged by birds, but the insect is alive and able to fly.

Eyespots and tails are found in many lycaenid butterflies. It is thought that their function is to divert the attention of predators from the more vital head region. An alternative theory is that these cause ambush predators such as spiders to approach from the wrong end and allow for early visual detection.[50]

A butterfly's hind wings are thought to allow them to take swift, tight turns to evade predators.[51]

Notable species

File:Siproeta epaphus Galawebdesign.jpg
Rusty-tipped Page (Siproeta epaphus), Butterfly World (Florida)

There are between 15,000 and 20,000 species of butterflies worldwide. Some well-known species from around the world include:

In culture


Artistic depictions of butterflies have been used in many cultures including Egyptian hieroglyphs 3500 years ago.[52]

In the ancient Mesoamerican city of Teotihuacan, the brilliantly colored image of the butterfly was carved into many temples, buildings, jewelry, and emblazoned on incense burners in particular. The butterfly was sometimes depicted with the maw of a jaguar and some species were considered to be the reincarnations of the souls of dead warriors. The close association of butterflies to fire and warfare persisted through to the Aztec civilization and evidence of similar jaguar-butterfly images has been found among the Zapotec, and Mayan civilizations.[53]

A serving tray decorated with butterfly wings

Today, butterflies are widely used in various objects of art and jewelry: mounted in frames, embedded in resin, displayed in bottles, laminated in paper, and used in some mixed media artworks and furnishings.[54] Butterflies have also inspired the "butterfly fairy" as an art and fictional character, including in the Barbie Mariposa film.


According to Kwaidan: Stories and Studies of Strange Things, by Lafcadio Hearn, a butterfly was seen in Japan as the personification of a person's soul; whether they be living, dying, or already dead. One Japanese superstition says that if a butterfly enters your guestroom and perches behind the bamboo screen, the person whom you most love is coming to see you. However, large numbers of butterflies are viewed as bad omens. When Taira no Masakado was secretly preparing for his famous revolt, there appeared in Kyoto so vast a swarm of butterflies that the people were frightened — thinking the apparition to be a portent of coming evil.[55]

The Russian word for "butterfly", бабочка (bábochka), also means "bow tie". It is a diminutive of "baba" or "babka" (= "woman, grandmother, cake"), whence also "babushka" = "grandmother".

The ancient Greek word for "butterfly" is ψυχή (psȳchē), which primarily means "soul" or "mind".[56]

According to Mircea Eliade's Encyclopedia of Religion, some of the Nagas of Manipur trace their ancestry from a butterfly.[57]

Butterfly and Chinese wisteriaflowers, by Xü Xi (c.886–c.975), painted around 970 during the early Song Dynasty.

In Chinese culture, two butterflies flying together symbolize love. Also, Butterfly Lovers is a famous Chinese folktale. The Taoist philosopher, Zhuangzi, once had a dream about being a butterfly that flew without care about humanity; however; when he awoke and realized that it was just a dream, he thought to himself, "Was I before a man who dreamt about being a butterfly, or am I now a butterfly who dreams about being a man?"

Diderot's Encyclopédie cites butterflies as a symbol for the soul. For instance, a Roman sculpture depicts a butterfly exiting the mouth of a dead man, representing the Roman belief that the soul leaves through the mouth.[58]

In some old cultures, butterflies also symbolize rebirth after being inside a cocoon for a period of time.

File:Carl Spitzweg 033.jpg
Der Schmetterlingsjäger (The butterfly hunter) by Carl Spitzweg (1840), a depiction from the era of butterfly collection.

Some people say that when a butterfly lands on you it means good luck.[citation needed] However, in Devonshire, people would traditionally rush around to kill the first butterfly of the year that they see, or else face a year of bad luck.[59] Also, in the Philippines, a lingering black butterfly or moth in the house is taken to mean that someone in the family has died or will soon die.[60]

The idiom "butterflies in the stomach" is used to describe a state of nervousness.

In the NBC television show Kings, butterflies are the national symbol of the fictional nation of Gilboa and a sign of God's favor.

The butterfly is sometimes used as a symbol of being transgender (because butterflies symbolize transformation or metamorphosis).

Technological inspiration

Studies on the reflection and scattering of light by the scales on wings of swallowtail butterflies led to the innovation of more efficient light-emitting diodes.[61]

The structural coloration of butterflies is inspiring nanotechnology research to produce paints that do not use toxic pigments and in the development of new display technologies.

The discoloration and health of butterflies in butterfly farms, is now being studied for use as indicators of air quality in several cities.


Butterfly counts are organized to assess the numbers and species of butterflies in a given locale. Much of this work is organized and recorded by volunteers who share their information with researchers.

See also



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  2. ^ Brewer, Jo; Gerard M. Thomas (1966). "Causes of death encountered during rearing of Danaus plexippus (Danaidae)" (PDF). Journal of the Lepidopterist's Society 20 (4): 235–238. Retrieved 2008-04-13. Lay summary. 
  3. ^ Leong, K. L. H.; Yoshimura, M. A.; Kaya, H. K.; Williams, H. (1997). "Instar Susceptibility of the Monarch Butterfly (Danaus plexippus) to the Neogregarine Parasite, Ophryocystis elektroscirrha". Journal of Invertebrate Pathology 69 (1): 79–83. PMID 9028932. doi:10.1006/jipa.1996.4634. Lay summary. 
  4. ^ 'Oxford English Dictionary: butterfly.
  5. ^ Donald A. Ringe, A Linguistic History of English: From Proto-Indo-European to Proto-Germanic (Oxford: Oxford, 2003), 232.
  6. ^ Powell, J. A. (1987). "Records of prolonged diapause in Lepidoptera". J. Res. Lepid 25: 83–109. 
  7. ^ Devries, P. J. (1988). "The larval ant-organs of Thisbe irenea (Lepidoptera: Riodinidae) and their effects upon attending ants". Zoological Journal of the Linnean Society 94 (4): 379. doi:10.1111/j.1096-3642.1988.tb01201.x. 
  8. ^ Devries, P. J. (June 1990). "Enhancement of Symbioses Between Butterfly Caterpillars and Ants by Vibrational Communication". Science 248 (4959): 1104–1106. PMID 17733373. doi:10.1126/science.248.4959.1104. 
  9. ^ Thomas, Jeremy; Schönrogge, Karsten; Bonelli, Simona; Barbero, Francesca; Balletto, Emilio (2010). "Corruption of ant acoustical signals by mimetic social parasites". Communicative and Integrative Biology 3 (2): 169–171. PMC 2889977. PMID 20585513. doi:10.4161/cib.3.2.10603. 
  10. ^ "Peggy Notebaert Nature Museum". Larva Legs. Chicago Academy of Sciences. Retrieved 7 June 2012. 
  11. ^ Ehrlich, P. R.; Raven, P. H. (1964). "Butterflies and plants: a study in coevolution". Evolution 18 (4): 586–608. JSTOR 2406212. doi:10.2307/2406212. 
  12. ^ Mason, C. W. (1927). "Structural Colors in Insects. II". The Journal of Physical Chemistry 31 (3): 321. doi:10.1021/j150273a001. 
  13. ^ Vukusic, P., J. R. Sambles, and H. Ghiradella (2000) Optical Classification of Microstructure in Butterfly Wing-scales. Photonics Science News, 6, 61-66,
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Further reading

Some field guides to butterfly species include:

  • Butterflies of North America by Jim P. Brock and Kenn Kaufman (2003)
  • Butterflies through Binoculars: The East by Jeffrey Glassberg (1999)
  • Butterflies through Binoculars: The West by Jeffrey Glassberg (2001)
  • Catalogue of the Butterflies of the United States and Canada by Jonathan Pelham (2008)
  • The Butterflies of Canada by Ross A. Layberry, Peter W. Hall, J. Donald Lafontaine (1998)
  • Butterflies of British Columbia by Crispin S. Guppy and Jon H. Shepard(2001)
  • The ROM Field Guide to the Butterflies of Ontario by Peter W. Hall, Colin D. Jones, Antonia Guidotti, and Brad Hubley (2014)
  • Life Histories of Cascadia Butterflies by David G. James and David Nunnallee (2011)
  • The Butterflies of Cascadia by Robert Michael Pyle (2002)
  • A Field Guide to Eastern Butterflies by Paul Opler (1994)
  • A Field Guide to Western Butterflies by Paul Opler (1999)
  • Peterson First Guide to Butterflies and Moths by Paul Opler (1994)
  • Las Mariposas de Machu Picchu by Gerardo Lamas (2003)
  • The Millennium Atlas of Butterflies in Britain and Ireland by Jim Asher (Editor), et al.
  • Pocket Guide to the Butterflies of Great Britain and Ireland by Richard Lewington
  • Butterflies of Britain and Europe (Collins Wildlife Trust Guides) by Michael Chinery
  • Butterflies of Europe by Tom Tolman and Richard Lewington (2001)
  • Butterflies of Europe New Field Guide and Key by Tristan Lafranchis (2004)
  • Butterflies of Lebanon by Torben B. Larsen. Beirut. (1974)
  • The butterflies of Saudi Arabia and its neighbours. by Torben B. Laren (Stacey intl.) (1984)
  • The butterflies of Egypt by Torben B. Larsen (Apollo Books, Denmark). (1990)
  • Field Guide to Butterflies of South Africa by Steve Woodhall (2005)
  • The butterflies of Kenya and their natural history by Torben B. Larsen (OUP) (1991)
  • Butterflies of Sikkim Himalaya and their Natural History by Meena Haribal (1994).
  • Butterflies of Peninsular India by Krushnamegh Kunte, Universities Press (2005).
  • Butterflies of the Indian Region by Col M. A. Wynter-Blyth, Bombay Natural History Society, Mumbai, India (1957).
  • A Guide to Common Butterflies of Singapore by Steven Neo Say Hian (Singapore Science Centre)
  • Butterflies of West Malaysia and Singapore by W.A.Fleming. (Longman Malaysia)
  • The Butterflies of the Malay Peninsula by A.S. Corbet and H. M. Pendlebury. (The Malayan Nature Society)
  • Butterflies of West Africa (two vols.) by Torben B. Larsen. (Apollo Books, Denmark) (2005)
  • Oxford Butterflies of India by Thomas Gray, I.D.Kehimkar, J Punetha, Oxford University Press (2008)

External links

Regional lists

Images and movies