Adonis Blue Butterfly: Identification, Life Cycle, and Behavior

Uncover the world of the vibrant Adonis Blue butterfly in this engaging article. Through it, you’ll delve into this species’ unique features, lifecycle, and habits.

Discover key identification tips, understand its threats, and explore the fascinating rituals and behaviors of the Adonis Blue butterfly.

Adonis Blue butterfly

What is the Classification of Adonis Blue Butterfly?

Belonging to the kingdom of Animalia, the Adonis Blue Butterfly is scientifically named as Polyommatus bellargus.

It comes under the class Insecta, an enormous class containing millions of species which includes all insects.

Within this class, it fits into the order of Lepidoptera, a vast order that comprises butterflies and moths.

This beautiful creature is part of the Lycaenidae family, which is teeming with tiny yet incredibly vibrant butterflies.

Delving further into its classification, the Adonis Blue Butterfly falls into the Polyommatus genus. This genus is characterized by dazzling blue butterflies, which makes the name ‘Adonis’ quite fitting.

A table summarizing its classification is provided below:

Classification Level Classification Name
Kingdom Animalia
Class Insecta
Order Lepidoptera
Family Lycaenidae
Genus Polyommatus
Species bellargus

Clearly, the Adonis Blue Butterfly is a representation of the natural splendor housed in every level of the biological classification system.

What is the Distribution of Adonis Blue Butterfly?

When talking about the Adonis Blue Butterfly (Polyommatus bellargus), it’s crucial to understand its geographical distribution.

The Adonis Blue Butterfly is primarily found in Western, Central and Southern Europe.

  • In Western Europe, it’s specifically observed in parts of the United Kingdom, especially in the chalk downs of southern England.
  • In Central Europe, they occupy regions in Germany and Poland.
  • And in Southern Europe, these magnificent creatures dot landscapes in Spain, Italy and Greece.

One interesting note is that the butterfly prefers warm temperatures. They are most commonly found in semi-dry grasslands, which provide optimal living conditions.

It’s also important to note their preference for limestone or chalk-based grasslands.

The Adonis Blue Butterfly has a very specific Swiss distribution. It’s mostly prevalent in Western and Central Plateau regions and in parts of the Jura. It’s rarely observed in the Alps region.

One can find the species becoming rare further to the north and east, with a marked decline observed in both regions.

In conclusion, the Adonis Blue Butterfly thrives in specific geographical locations that meet its unique living and feeding needs.

The species’ ability to flourish in these regions is a testament to their adaptation to somewhat diverse climates in different parts of Europe.

What are the Main Characteristics of the Adonis Blue Butterfly?

Adonis Blue butterfly, scientifically known as Polyommatus bellargus, is a small and striking species of butterfly.

It belongs to the Lycaenidae family, renowned for their vibrant colors and distinctive patterns.

  • Measurement: The Adonis Blue butterfly is relatively small, usually around 1.2 inches (3 centimeters) in wingspan. Despite its small size, it can quickly grab your attention with its intense blue wings.
  • Wings: One of the significant defining traits of this species is its distinctive vibrant sky-blue wings. The vivid blue hue is highly attractive and contrasts sharply with the black and white fringe of the wings.
  • Bodies: Adonis Blue butterflies possess hairy, stout bodies that are black-brown in color. This often contrasts with their brightly colored wings.
  • Underside: The underside of the Adonis Blue butterfly is equally impressive. It presents as a pale, silvery-blue color with spots. This allows it to blend in effortlessly with its surroundings when its wings are closed.

This dazzling coloration is a visual feast and one of the many reasons why the Adonis Blue butterfly is popular among butterfly enthusiasts.

It’s important to note that these characteristics, including the brilliant blue hue and the detailed patterns, vary slightly between males and females of the species.

How to Identify Male and Female Adonis Blue Butterfly?

Identifying the Adonis Blue Butterfly can be an educational and enriching experience. While both sexes boast striking features, there are distinct traits to distinguish between the males and females.

Males are known for their brilliant, eye-catching blue wings. Since they spend most of their time feeding on flower nectar and defending their territory, you often find them on flowers in open scrubland and calcareous grasslands.

Pay attention to their wings’ upper side; a deep, radiant blue signifies a male.

  • Wing color: Deep, radiant blue
  • Habitat preference: Open areas, flowers

Females, on the other hand, have different coloring: dark brown wings laced with a row of red-orange spots.

These spots, coupled with black borders on the upper wing side, help differentiate them from their male counterparts. Females also choose more secluded, vegetative environments.

  • Wing color: Dark brown, red-orange spots
  • Habitat preference: Vegetative areas

Learning to identify the gender of the Adonis Blue Butterfly advances both your appreciation and understanding of this iconic species.

Remember the males’ enchanting blue wings and the females’ understated elegance. This is your key to successful identification.

Once you’ve recognized this, you’re set for a true Adonis Blue encounter!

What is the Mating Ritual of Adonis Blue Butterfly?

The mating ritual of the Adonis Blue Butterfly is a fascinating spectacle. Upon sighting a potential mate, the male butterfly sets out on a courtship dance.

This involves flying in a figure-eight pattern around the female to entice her.

The male’s vibrant blue wings are particularly significant during this dance. Specifically, they produce an ultraviolet reflection which is highly attractive to the females.

Therefore, the males with the most-intense hue or with wings reflecting more ultraviolet light typically have higher mating success.

After the courtship, mating commonly takes place in the afternoon and lasts for several hours.

Afterward, the female begins her search for suitable plants to lay her eggs, particularly on the undersides of horseshoe vetch leaves.

What Does the Caterpillar of Adonis Blue Butterfly Look Like?

When you first look at the Adonis Blue butterfly’s caterpillar, you’ll observe a vibrant, lime-green body with an interesting feature: a longitudinal, blue-gray stripe.

This stripe runs across the length of the caterpillar’s body. The feature that stands out in these caterpillars is the bright yellow spiracles, which are the points of respiratory intake.

The caterpillar has a short, stout figure, spanning merely 15mm (0.59in) long. It’s also adorned with small, erect, white hairs which give it a somewhat fuzzy appearance.

The head of the caterpillar is black, providing a stark contrast to its bright body – a remarkable sight, indeed.

Look for a highly tapered body shape from its head down to its posterior to get a positive identification.

You’ll find the fully grown caterpillars around late May or early June, right before they move into their next stage of life: the chrysalis.

This is what makes the Adonis Blue butterfly’s caterpillar easily recognizable and different from other butterfly larvae you might come across.

What is the Life Cycle of Adonis Blue Butterfly?

Let’s dissect the life cycle of the beautiful Adonis Blue Butterfly. An exciting journey, it begins as an egg, then modifies to a larva (commonly known as a caterpillar), later transforms into a pupa (stage of metamorphosis), and finally emerges as a stunning adult butterfly.

Initially, female Adonis Blues lay their eggs on the upper side of the leaves of host plants. These eggs are usually laid in late summer and early fall, and will take roughly 7-10 days to hatch.

Next comes the caterpillar stage. Interestingly, the larvae of the Adonis Blue Butterfly are nocturnal, feeding on the Horseshoe Vetch, mainly during the night.

The caterpillar will then spend about 20-30 days in this stage, growing in size and shedding its skin several times.

Lastly, the caterpillar eventually forms a chrysalis, a process also known as pupation. This final transformation stage takes around a fortnight (approximately 14 days).

After the pupal stage, the fully-formed adult Adonis Blue Butterfly will surface, taking its first flight. It is indeed a fascinating life journey that amply underscores the dynamic existence of these butteries.

Bear in mind, this lifecycle might get influenced by weather conditions and availability of food resources. Survival is a tough game in nature, and even the ethereal Adonis Blue Butterfly is not exempt from its rules.

What Is the Average Life Expectancy of an Adonis Blue Butterfly?

The life expectancy of an Adonis Blue Butterfly is relatively short, yet fascinating. Adult butterflies live for a formidable period of only about 3 weeks.

That’s around 21 fleeting but beautifully vibrant days. However, considering their full life cycle from egg to adult, their lifespan extends to roughly 1 year.

During their adult life, their main purpose is twofold – to mate and to lay eggs, cast into the future. This brief but concentrated phase is a spectacle of natural beauty and complexity.

With the males flaunting their stunningly blue wings in the quest for a mate, and females meticulously laying their eggs on Horseshoe vetch.

In comparison, the larvae, or caterpillar stage, takes up a considerable part of their life. Depending on environmental factors, it can last between 6 to 10 months.

Within this time, the caterpillar eats, grows, and metamorphoses into a chrysalis to eventually emerge as an adult butterfly.

The Adonis Blue Butterfly’s short life is marred with challenges. From evading predators to enduring harsh weather changes. Yet, they epitomize the essence of life itself.

Packed into a brief existence is a cycle of birth, growth, transformation, and reproduction. Despite its brevity, the existence of the Adonis is a spectacle of nature, filled to the brim with striking color and unabashed beauty.

What Does the Diet of a Adonis Blue Butterfly Consist Of?

The Adonis Blue Butterfly is known to be a nectar lover. Its primary nutrition source comes from the nectar it ingests from a wide variety of flowering plants during its butterfly phase.

You’ll often see them sipping the sweet liquid from the delicate purple flowers of a thyme plant or from the robust bright red blooms of a poppy.

In their larval phase, the Adonis Blue Butterfly’s menu is slightly different. As caterpillars, their main diet involves the short grasses found in their chalky meadow habitats.

Most commonly, this means they consume the leaves of the horseshoe vetch plant, Hippocrepis comosa. This specific plant type is vital for their survival and growth.

Also, let’s not forget about their pupal phase. During this critical transformation period, the Adonis Blue Butterfly does not consume food.

Instead, they capitalize on the stored energy from the food they consumed as caterpillars to metamorphose into their adult form.

The quality of their diet at this stage determines the health and survival rate of the adult butterflies.

In conclusion, the Adonis Blue Butterfly’s diet is a clear reflection of their unique lifecycle, and it varies depending upon their growth stage.

Ultimately, flowering nectars and horseshoe vetch leaves constitute the key dietary elements to fuel their lifecycle.

Which Plants Serve as the Primary Hosts for Adonis Blue Butterfly?

The primary host plants for the Adonis Blue Butterfly are certain species of native grasses. Horseshoe Vetch (Hippocrepis comosa), a flowering plant is the best known example of these hosts.

This plant plays a critical role in the lifecycle of the butterfly. Adonis Blue butterfly lays its eggs in the heart of the Horseshoe Vetch clumps and the hatched caterpillars feed on the plant.

Each caterpillar has a preference for tender, new growth at the base of the plant. Despite the availability of other food sources, they stick to Horseshoe Vetch.

Consider the following:

  • The caterpillars live and feed on the plant for about one month.
  • These caterpillars have a special relationship with ant colonies, often found in the vicinity of these host plants.
  • Both caterpillars and ants benefit from this cooperation. The plant provides nectar for the butterfly and shelter for the larvae.

In conclusion, the Horseshoe Vetch (Hippocrepis comosa) and a few other native grasses serve as the primary hosts for the Adonis Blue Butterfly.

This relationship is not only crucial for the butterfly’s survival but also plays a vital part in the ecosystem that supports many other species.

What are the Unique Mimicry Behaviors in Adonis Blue Butterfly?

Observing an Adonis Blue butterfly fluttering about can be quite a sight to behold but have you noticed anything peculiar about their actions?

They’ve got some interesting tactics up their tiny sleeves, primarily relying on the art of mimicry.

Mimicry refers to the ability of an organism to resemble or imitate another for survival. In the case of the Adonis Blue butterfly, its primary mimicry behaviour is seen in its physical attributes.

The underside of the butterfly features a series of white-ringed black spots, imitating the appearance of eyes. This strategy is to confuse and deter potential predators, making them believe they are facing a much larger, possibly threatening creature.

The males of the species benefit from their bright blue wings which they use for Batesian mimicry, a form of biological resemblance where a non-threatening species like the Adonis Blue, mimics a harmful or threatening species.

This serves as a tactical move to avoid predation. The bright blue wings of male Adonis Blue are often mistaken for certain species of poisonous creatures, making predators second-guess their decision to attack.

Seasonal polyphenism, another mimicry behaviour exhibited by the Adonis Blue butterfly, is where the butterfly adapts its physical appearance based on the season.

For instance, fall butterflies are darker compared to those in summer, to better blend in with the changing environment.

In short, the Adonis Blue has an array of mimicry behaviours ranging from unique physical attributes to behavioural adaptations which help it to effectively evade predators and enhance its survival.

What Are the Main Threats to Adonis Blue Butterfly Populations?

The Adonis Blue Butterfly doesn’t have an easy time surviving to adulthood. Let’s explore why.

Loss of Habitat

Firstly, the loss of habitat is a significant threat. These butterflies need chalk grassland to survive. They have a very delicate balance with their environment.

Unfortunately, modern farming tactics and urban development are reducing these areas rapidly.

Climate Change

Secondly, climate change has complex effects on fragile species like the Adonis Blue Butterfly. Changing weather patterns can disrupt their sensitive life cycles.

Warmer winters may stimulate premature emergence, while stormier summers could expose them to dangerous conditions.


Lastly, the use of pesticides is another concern. Pesticides meant for the crops can inevitably reach the caterpillars of the Adonis Blue Butterfly.

This can harm their development or even kill them. Pesticides can also harm the nectar plants that the butterflies rely on, indirectly affecting their diet.

All these factors come together to put the Adonis Blue Butterfly population under serious threat. Conservation efforts need to take these threats into account to ensure the survival of this beautiful butterfly.


You’ve just taken a delightful journey learning about the Adonis Blue Butterfly, from its standout characteristics to its unique behaviors.

Hopefully, this newfound knowledge fuels your admiration and awareness for such a stunning creature.

Feel free to share your thoughts or any personal experiences you’ve had with these beautiful insects in the comment section!

Butterflies   Updated: September 18, 2023
avatar Welcome to Insectic, a blog to learn about insects and bugs. I'm Richard, and I've created this website to share my experience, knowledge, and passion with others.

Leave a Comment

Your email address will not be published. Required fields are marked *