52 Interesting Facts About Butterflies

Last updated on July 12th, 2024

Indeed, “Butterflies” have fascinated people for thousands of years and sometimes are as important as their colors and delicate nature seem to suggest. Butterflies are related to moths but only distantly so. Butterflies are specialized to feed on nectar while moths might eat plant fibers. Butterflies prefer daylight while many species of moth prefer to do their business at night. Butterflies and moths, are the sole group of insects with scales adorning their wings, although certain butterflies exhibit diminished scale coverage.

These interesting facts about butterflies will teach you about this superorder of organism that is too large to even be classified as a family.

1. They are 56 million years old

The distinct family of butterflies is about 56 million years old. This is after the distinction of the dinosaurs, and it is presumed that the forerunners of the butterflies were similar to moths before specializing in flowering plants.

The earliest flowers are thought to be as old as the Cretaceous period, and the size and beauty of many flowers are directly caused by the appearance of pollinators like butterflies with specialized mouth parts.

Speckled Wood butterfly.
Speckled Wood butterfly. Image credit – ianpreston

2. A living fossil

The Brimstone butterfly inhabits colder regions and is considered to be a living fossil. It is believed to be evolutionarily close to the original lineage of butterflies. The females resemble leaves, and both genders are forced to hibernate through long winters.

3. A moth or a Butterfly?

The genus Hedylidae was once considered to be a variety of moths, but both anatomic scrutiny as well as DNA testing proves that this family of moth-like insects is in fact a variety of butterfly. They likely evolved their color scheme due to occupying a similar ecological niche.

4. Skippers are also butterflies

Skippers are another family of butterfly that was once difficult to distinguish with moths. They were originally judged based on their physical traits and assumed to be a third family related to butterflies and moths. Instead, they are true butterflies and are just quite specialized for darting flight.

5. Dramatic metamorphosis

Butterflies are known for cocoon metamorphosis, but they are not unique in this ability. Moths also pupate, and in fact most insects go through metamorphosis. Butterflies are just dramatic in this regard.

butterfly
Image credit – Joseph Gage

6. More active during day time

Butterflies are brightly colored to attract mating partners. They are active in the day because flowers are open and also because the colors of their wings reflect full sunlight in order to register with other butterflies.

7. Moths are nocturnal to avoid dangers of butterfly’s predators

Moths might have adapted the habit of being nocturnal precisely because they faced daytime competition with butterflies. By feeding at night, moths avoid predators that hunted butterflies. In addition, some flowers only open at night.

8. Butterflies are considered to be polymorphic

This means that a species might contain different patterns and color schemes within that species and be mistaken for different species. The enormous diversity of butterflies might be the result of polymorphism. The same species might drift apart as physically different members become isolated or prefer one another due to selective pressures.

9. Most of the butterflies are Dimorphic

Most butterflies are dimorphic in their wing patterns according to gender. This is an obvious advantage because their principle purpose in their adult phase is to reproduce and deposit their eggs. Coloration helps partners to spot each other from a distance.

10. Varied types of colours 

Butterflies vary in their coloration. Some are brightly colored and are visible to any predator that can see in particular spectrums of light. Other butterflies are able to hide while resting. More often it is the caterpillar that is designed to hide.

butterfly wings
Image credit – Sharon Mollerus

11. They can mimic other species also

Some butterfly species are designed to mimic species that are not related to butterflies just because predators would rather avoid these species. Some species have been compelled to resemble moths or dragonflies. The degree of detail can be astonishing.

12. Why only nectar?

An adult butterfly depends on nectar for food because it has a straw for a mouth part and the mandibles that allowed it to eat plant matter is all gone. As a butterfly is done growing, it does not need the protein found in leaves.

13. They need enormous energy

Butterflies expend a lot of energy while flying and so depend on a very dense source of calories. As nectar is the precursor to honey, it is obviously rich in sugars and also contains some vitamins.

14. Wings are inert (passive) 

The wings of butterflies do not heal themselves. They are formed in the pupae and then are expanded with hydraulic pressure before becoming an inert structure like hair on the body of a mammal.

Monarch butterfly on the grass
Monarch butterfly. Image credit – Tracie Hall

15. Lifespan 

The lifespan of a butterfly ranges from a few weeks to months in the case of the migrating monarch butterfly. The job of the adult butterfly is specific to finding a mate and producing eggs that are attached to the preferred host plant.

16. Special predators

As a common species, butterflies are targeted by specialized predators. This includes parasitic organisms that are often attracted to the caterpillars. Hornworm caterpillars, for example, are famous for having a specialized wasp with parasitic larvae.

17. Butterflies vs Caterpillars

Butterflies are interesting because the adults and their caterpillars have different food preferences. Caterpillars consume solid food using mouthparts designed for biting and chewing, whereas butterflies feed on liquid food by siphoning nectar from flowers with their specialized mouthparts. A species might lay eggs on the same plant that it feeds up or else use different species.

butterfly feeding facts about butterflies
Image credit – Laura Wolf

18. Special food source

Butterflies feed on nectar, so any flowering plant can potentially provide food for them, provided the length of their proboscis matches the depth of the flower’s nectar. In contrast, caterpillars are highly selective about their food sources. Butterflies avoid disease by having specialized food sources, but still might be attacked by protozoan germs that are designed to make butterfly guts their home. Caterpillars have it rougher because flowers are cleaner sources of food.

19. They observe colours to identify flowers

Butterflies use eyes that are adapted to observing coloration and pattern cues in flowers in order to identify them. Since butterflies are so good at identifying flowers, this likely has influenced their color schemes just because they have the right eyes for it.

20. Hungry and Stubborn 

Some tropical butterflies are so hard pressed to find food that they might feed on rotting fruits or animal dung.

21. Smart trees

Some tree species produce toxins specific to caterpillars but wait until the caterpillars start munching before beginning to produce this toxin.

22. A special characteristic

Only butterflies have the ability to curl up their proboscis in order to get it out of the way.

23. Friends with ants

Some butterflies have relationships with ants that are beneficial. The ants might pollinate the same flowers as butterflies without bothering their competitors or else they might have an interest in caterpillar droppings.

butterfly couple
Image credit – peterichman

24. Their wings have numerous scales 

Butterflies achieve their coloration as well as their wing lightness by having countless scales on the surface of their wings that are as fine as dust. The colors are achieved by reflecting light a certain way, with each scale having a microscopic texture as well as a base color.

25. They can damage the crops sometimes

Caterpillars are sometimes damaging to crops because they may attack plants that are either fruiting trees or else vining plants with broad and nutritious leaves. Caterpillars can be killed with common pesticides.

26. The male butterflies are homogametic

Butterflies are interesting in that the females have differing gametes compared to males having this role in mammals. The male butterflies are considered homogametic because they have identical gender genes that may substitute for one another.

27. Taken care of by humans

Some people grow plants just because they are known to provide food for butterflies. A remarkable example is milkweed that is essential to monarch butterflies but otherwise is a noxious weed and undesirable to be allowed to reproduce in a field. Some people grow gardens just to look at the flowers and then at the butterflies that visit the gardens.

28. Can be easily preserved

Butterflies are easily preserved because their thin bodies quickly desiccate after death. Their wings are naturally preserved because they are already dry and inert tissue. It is normal to pin butterflies to a board as specimen and keep the collection behind glass.

butterfly from Hamadryas species
Hamadryas species – butterfly. Image credit – Andy Reago & Chrissy McC

29. Do not use alcohol to kill them

Some insects are killed using isopropyl alcohol as a depressant, but butterfly wings are easily damaged by this treatment. Instead, they might be killed by piercing their thorax with a needle for preservation purposes.

30. Handel them with care

Butterfly wings are easily damaged by handling, and directly touching the wings will dislodge scales that produce coloration. Butterflies are often manipulated with fine nets and tweezers.

31. The most common butterfly species in the world

Painted lady (Vanessa cardui) is the most widely distributed butterfly species worldwide. They are found on numerous oceanic islands and six continents. Although they are common across North America, their presence fluctuates over time rather than remaining constant throughout the region.

32. The Smallest butterfly in the world

The Western pygmy blue holds the title of being the smallest known butterfly in the world. It has a wingspan of 1.3 centimetre (0.5 inch). It belongs to the Lycaenidae family (also known as gossamer-winged butterflies) of butterflies which is the second largest family of butterflies.

Swallowtail
Swallowtail butterfly. Image credit – JuliaC2006

33. The Biggest butterfly species

The female Queen Alexandra’s birdwings (Ornithoptera alexandrae) holds the title of being the largest butterflies globally, with an impressive wingspan reaching approximately 27 centimeters. This endangered species inhabits the rainforests of northern Papua New Guinea. They belong to the Papilionidae family (also called as swallowtail butterflies) of butterflies.

34. Largest family of butterflies

The largest family of butterfly is Nymphalidae. They contain approximately six thousand species and are named for keeping two legs curled in such a way that the butterfly appears to be four-legged. Their curled legs might have a special use. They are often known by the name “Brush-footed” butterflies.

35. The Monarch belongs to Nymphalidae

Monarch Butterflies are in the family Nymphalidae and have related characteristics. They are large butterflies and migrate towards Florida and Mexico in order to survive winter. They breed in temperate regions and migrate to avoid the cold.

36. Have you heard of metal mark butterflies?

Riodinidae (called as metalmarks) is the family of metal mark butterflies. They are characterized by a smaller body size and a color scheme that includes the color blue. A rare color in nature, the blue is caused by the microscopic texture of the wing’s scales.

orange butterfly
Image credit – peterichman

37. Varying number of chromosomes 

Metal mark butterflies are distinct in that they have an unusual number of chromosomes based on their species. The number might vary from 9 to 110. The number for many other butterfly families is around 30.

38. Not all the species have been genetically sequenced

Some biologists want to put Riodinidae into two major family groups while some want to place them within three family groups. Not all the species have been genetically sequenced, so it is still a matter of speculation.

39. Lets count the species…

It is believed that there are as many as 17,500 species of butterflies in the world with about 750 residing inside of the United States alone.

40. Texas alone has a whopping number of 442 species 

Texas boasts approximately 442 recorded butterfly species, making it the most diverse butterfly state in the U.S. This rich variety offers both rewarding and challenging experiences for butterfly enthusiasts in Texas.

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