8 Spectacular Caterpillars That Look Like Snakes

A bright green with yellow edges and yellow around its eyes, the spicebush swallowtail caterpillar on a leaf looks very snake-like.
This spicebush swallowtail caterpillar on a leaf looks very snake-like.

JasonOndreicka / Getty Images

Gaze into the (fake) eyes of these caterpillars with decidedly snake-like features to get a glimpse into Mother Nature's sly side. Welcome to the wonderful world of mimicry, in which animals adapt over time to develop novel features that allow them to appear like something they are not. Whether it's fake eyes or pretend horns, these small creatures are able to ward off many a predator.

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Red Helen Swallowtail Caterpillar

The dark green head and face of a red Helen caterpillar sitting on a green leaf.

wiljoj / Getty Images

Found in the forests of India and southeast Asia, in its larval state, the red Helen swallowtail caterpillar looks like an ominous green snake. The caterpillar has another defense as well. When irritated, it can produce a two-pronged hornlike defensive organ called an osmeterium that puts out a foul-smelling liquid to deter predators. At maturity, that same snake-like caterpillar transitions into a beautiful swallowtail butterfly. In its butterfly state, the red Helen swallowtail is mostly black in color, with distinctive white spots and red details on its wings.

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Spicebush Swallowtail Caterpillar

An orange spicebush swallowtail caterpillar on a bright green leaf.

Michael Hodge / Wikimedia Commons / CC BY 2.0

The spicebush swallowtail caterpillar goes through several stages and color changes on its way to becoming a butterfly. The snake stage occurs when what appear to be large eyes are displayed on the caterpillar’s thorax. The spicebush swallowtail turns orange or yellow just before it pupates.  Found mostly in the eastern half of the U.S., adult butterflies are primarily black with rows of light green or blue spots along the edge of their wings.

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Great Orange Tip Caterpillar

A fluorrescent green larvae of Hebomoia glaucippe formosana with its head outstretched away from a branch.

Peellden / Wikimedia Commons / CC BY-SA 4.0

Along with fake snake eyes and markings, snake-mimicking caterpillars will also duplicate their muses' behavior as well, adding some extra flourishes to their arsenal of snake tricks. The great orange tip caterpillar lifts its head in a snake pose like it is planning to attack. The markings on the great orange tip caterpillar are snake-like as well, with a red stripe down its side and orange and blue markings on its head. Found in south and southeast Asia, China, and Japan, once the great orange tip becomes a butterfly, it is predominantly white with bright orange and black on the outer third of its wings.

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Jade Hawk-Moth Caterpillar

A jade hawk-moth caterpillar with a fluorescent green body and pointed face.

Chonticha Vatpongpee / EyeEm / Getty Images

This member of the Sphingidae sub-family is found primarily in Sri Lanka, India, Nepal, Myanmar, southern China, Taiwan, Thailand, Malaysia, and Indonesia. While in the larval stage, the caterpillar is green with tiny yellow dots and a reddish band on both sides. The mature moth is multi-patterned mixture of brown, olive green, and red. The jade hawk-moth is known to be a fast flyer and is particularly attracted to bright light and sweet-smelling flowers.

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Elephant Hawk-moth Caterpillar

A brown and black elephant moth caterpillar reaching its head up.

hekakoskinen / Getty Images

Elephant hawk-moth larvae resemble elephant trunks. The caterpillars are typically dark brown with large eye spots, but they may also be found in a green coloration. In adulthood, the elephant hawk-moth becomes beautiful shades of gold and pink. The moths are nocturnal and feed mostly on honeysuckle. The elephant hawk-moth is found throughout England, Wales, and Ireland, as well as in the Pacific Northwest portion of the U.S.

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Eastern Tiger Swallowtail Caterpillar

A bright green eastern tiger swallowtail with yellow eyes and an open mouth on a green leaf.

JasonOndreicka / Getty Images

The eastern tiger swallowtail is found throughout eastern North America. In its caterpillar stage, the eastern tiger swallowtail prefers the leaves of birch, wild cherry, and sweetbay magnolia trees. As an adult butterfly, the eastern tiger swallowtail enjoys flower nectar from milkweed and lilacs. Eastern swallowtail butterflies are identified by their yellow wings with dark tiger stripes. An eastern tiger swallowtail caterpillar was the inspiration for the Pokemon character Caterpie.

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Silver-spotted Skipper Caterpillar

A brown-headed, yellow-eyed silver spotted skipper caterpillar on a green leaf with a hole.

JasonOndreicka / Getty Images

Found throughout the U.S. and southern Canada, the silver-spotted skipper caterpillar is identified by its dark reddish brown head and yellow-orange eye patches. The body of the larvae is yellow and the prolegs are a vivid orange. The adult silver-spotted skipper butterfly has a wingspread of up to two and half inches and a large white spot on the underside of each wing.

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Bedstraw Hawk-moth Caterpillar

A tan and dotted bedstraw moth on a brown stick.

Jasius / Getty Images

With a broad range that includes most of the northern United States, Canada, Alaska, and Eurasia, the bedstraw hawk-moth is a member of the Sphingidae sub-family. The bedstraw hawk-moth is called a "hornworm" in its larval stage because of the caterpillar's protruding red hook. At maturity, the bedstraw hawk-moth is dark, light brown, and tan, with a few red accents.