Top 10 Smallest Butterflies in the World

Even large butterflies are only a few inches in size. Even the largest, like the Queen Alexandra Birdwing, can be held comfortably in the hand of a man despite its 11-inch wingspan and 0.42-ounce weight. However, there are butterflies that are so tiny that you can barely see them. These tiny insects evolved to pollinate the tiniest of flowers or to serve some other niche that the larger species cannot. From the largest of the small to the smallest, this article lists 10 of the world’s smallest butterflies.

Despite the world’s preoccupation with scale, elegance can be found in the smallest of things. Even the tiniest of butterflies might drive this point home. Due to the prevalence of blue as a ground color on the upper wings of many butterflies, this group is commonly referred to as “blues.” Their underbelly colors range from dull grey to off-white so that they disappear into their surroundings. The length of a butterfly’s wingspan is determined by gauging its length from its base to its apex.

1. Pygmy Blue of the West

With a wing span of only 0.48 to 0.78 inches, scientists consider this tiny butterfly to be the smallest in North America, if not the world. The wing tips are a darker copper, while the undersides are a lighter blue. Underneath, the wing is a coppery color with white accents at the tips and the base. Black dots can also be seen along the bottom and the sides. Women tend to be larger than men.

2. False Tadpole with White Spots

The wing span of a swallowtail butterfly is between 5/8 and 1/4 of an inch. It inhabits the rainforests of Central and South America, including those of Brazil and Venezuela. The white-spotted tadpole butterfly’s wings are either black or dark brown, and it has a large white eyespot in the middle of each forewing. Males have a white eyespot, while females have an orange one. Their antennae have been smashed in with a club. When compared to males, females have larger wings. Currently, we know of five distinct species of this butterfly. Despite its reputation for a sluggish flight, the white-spotted tadpole butterfly flies at a rate of speed that is more typical of wasps. Likely, this serves as a deterrent against potential predators.

3. An Old Salt at the Helm

The black and white pattern on its wings gives this insect its common name. The wingspan of this insect is between a quarter and an inch. As a result of its coloring, it resembles a moth. The butterfly is widespread across Europe, but you’ll find most of them in the middle and southern regions of England. Its habitats include forests, grasslands, and even defunct industrial areas. The female has slightly more rounded wings than the male.

Smallest Butterflies

4. Messene of Cramer

Bright orange-red markings on this tiny butterfly’s wings serve as a warning to any would-be predators. Males have brighter coloring, while females are larger, less colorful, and presumably heavier. Both sexes have black margins on their wings, and the undersides of the forewings are a striking reddish-black. Cramer’s Messene wingspan is roughly an inch, with a possible lower limit of 1/4 inch. Tropical South and Central America are home to Cramer’s Messene. Its poisonous properties are most likely derived from the fact that its caterpillar eats the highly toxic Paulinia pinnata plant’s leaves.

5. Normal Sootywing

This tiny butterfly, measuring only 1/4 inch to 1.25 inches across its wings, has wings that are sooty brown and white spotted, as its name suggests. Sootywings are distinguished by having hind wings that are at least as large as their fore wings and often much bigger. The range of this insect extends across the continent of North America, from central Canada to northern Mexico. It can be spotted from spring to fall in the mountains and on farmland. The caterpillar’s dark head stands out against its pale green body, and amaranth is its preferred food source.

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6. Legs Made of Wool

Woolly legs can be found in Sub-Saharan Africa, and their wing span is between 3/4 and 1.25 inches. A member of the same family as blue butterflies, with a similar size difference between the sexes. Its wings and body are muted brown and white, giving it the appearance of a moth. Its peculiar name is well-deserved, as its woolly legs are truly out of place. This is because their preferred beverage is honeydew, which is produced by aphids rather than nectar. To avoid being stung or bitten, butterflies have developed fluffy legs, and ants enjoy the honeydew produced by aphids. The woolly leg caterpillar is welcome in the garden because it eats aphids and scale insects.

7. Bird with an Eastern-looking Tail

The blue butterfly is a member of the subfamily Lycaenidae and is one of the smallest species of butterfly. This butterfly is relatively large for its size, with a wing span of between 3/4 and 1 inch. The majority of its range is in eastern North America, but it can also be found in Central America, the western United States, and southern Canada. Males have gorgeous violet-blue wings, while females are typically grayer but can have blue undertones. Each hind wing has a pair of eyespots and has a grayish-white underside. The tiny tails on the hind wings are what give this insect its common name, the butterfly. The eastern-tailed blue caterpillar is striped with a brown and lighter green. Clover and legumes are among their favorite foods.

8. Common Grackle

The antennae of the least skipper are longer and curved at the tips than those of other butterflies. Their unusual behavior, in which they appear to hop from plant to plant, is the origin of their peculiar moniker. With a wing span of only 3/4 inches, the least skipper is the smallest of the skippers. It prefers to fly low to the ground and can be seen east of the Rocky Mountains in wetter, marshier regions. Its brown forewings have orange patches and the tips of its orange-colored hind wings. The antennae are clubbed rather than curved like those of other skippers, and the undersides of the wings are a paler orange color. The northern range of the least skipper is active from spring through late summer, while the southern range is active year-round except for the coldest months. It spends each and every day of the year in southern Florida. Rice, panic grass, cordgrass, and marsh millet are all host plants for the caterpillar.

Smallest Butterflies

9. Iron Mark Miniature

The wingspan of the tiny metalmark is only about an inch and a quarter. This butterfly is native to North America, where it thrives in open areas like uplands and along roads, as well as in pine savannas and sandhills. The wings are covered in a lacy design made of orange, black, and shiny silver. The caterpillar is light green and covered in long, bristly hairs, and the eggs are flattened and honeycombed. Pupae eventually consume the long hair and incorporate it into their bodies. Females of this species of butterfly lay their eggs singly on the undersides of the leaves of their preferred host plants, which include asters, thistles, and other ray flowers. The caterpillars only come out at night to eat, and their feeding damage to the leaves is evidenced by tiny holes.

10. Navy Blue Seas

This North and Central American butterfly has a wing span of about an inch and weighs a little more than its western pygmy blue relative. Unlike other bluebirds, it doesn’t appear until later in the spring, and in its southern range, it can be seen all year. On the male, the wingtips are a deep purple, while on the female, they are primarily brown with blue patches. Tiger stripes of light brown and white can be seen on the underside of the wing, and the underside of the hind wing features blue eyespots. The marine blue butterfly is a generalist, nectaring at many different types of flowers. Ants will “milk” the caterpillar for its honeydew, just like they do with other species of a blue butterflies.


Butterflies are beautiful and fascinating creatures, and they can be observed with relative ease in the wild. Butterflies and moths, also known as “nighttime butterflies,” are both members of the Lepidoptera family. Butterflies get their vivid hues from the scales on their wings, which are both pigmented and highly reflective. Not only are butterflies beautiful to look at, but the colors they display are crucial to their ability to reproduce and survive. You won’t be able to take your eyes off the gorgeous but potentially dangerous species of butterflies on this list of the smallest in the world.

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