Mazarine Blue Butterfly: Identification, Life Cycle, and Behavior

Explore the vibrant world of the Mazarine Blue Butterfly, a unique species notable for its mimicking behavior.

Dive into its life cycle, mating rituals, and developing threats.

Learn to identify the distinguished male from the female, and understand why specific plants serve as its primary hosts.

Mazarine Blue butterfly

What is the Classification of Mazarine Blue Butterfly?

The Mazarine Blue Butterfly, known scientifically as Cyaniris semiargus, belongs to the Lepidoptera order. This vast order includes all butterfly and moth species.

Interestingly, it’s a member of the Lycaenidae family, the second-largest family in the butterfly world.

  • Order: Lepidoptera
  • Family: Lycaenidae
  • Genus: Cyaniris
  • Species: C. semiargus

Within this family, the Mazarine Blue Butterfly aligns with the Cyaniris genus. There are approximately 6,000 species in Lycaenidae, characterized by their tiny size and vibrant wings.

The Cyaniris genus contains just two species, with the C. semiargus holding its own distinct features.

The species name, C. semiargus, speaks to its unique appearance. In Latin, “semi” translates to “half”, and “argus” references a mythological creature.

This suggests half of the Mazarine Blue Butterfly’s beautiful wings showcase eyespot patterning, a common feature in its Lycaenidae family.

With this classification, the Mazarine Blue Butterfly aligns with some of the most visually stunning species. Yet, each level separates it further, highlighting its unique biological makeup.

Recognizing these categories is truly the first step in understanding this fascinating creature.

What is the Distribution of Mazarine Blue Butterfly?

The Mazarine Blue Butterfly, scientifically known as “Cyaniris Semiargus,” has an expansive and fascinating distribution.

This species is found throughout much of Europe extending into Mongolia in the east, and has been recorded in North Africa and parts of the Middle East as well.

  • Europe: In Europe, the Mazarine Blue Butterfly has a quite widespread area and is noted from the British Isles, France, and the Iberian Peninsula northwards to Fennoscandia, then east across to Russia.
  • North Africa and the Middle East: These butterflies are more localized in this region but are still present. They are seen in Morocco, Algeria, and northern Tunisia. Distribution extends eastwards through Syria and Lebanon to Iran.
  • Asia: A broader representation of Mazarine Blue Butterfly distribution occurs in some parts of Asia; particularly in Turkey and Cyprus through to northern India, Mongolia, and China.

You’ll find them in a range of habitats. They favor flowery places like meadows, calcareous grasslands, and woodland clearings, usually up to an altitude of 6,500 feet (about 2,000 m).

There are a lot of factors that influence the presence of these species; they are typically spotted in the warmest months of the year, between May and June.

Their precise location can vary year on year, depending on environmental factors.

In essence, Mazarine Blue Butterfly’s distribution is influenced by a mosaic of environmental aspects.

This includes a combination of climate, vegetation availability, and the suitability of the landscape for their specific life cycle patterns.

What are the Main Characteristics of the Mazarine Blue Butterfly?

Mazarine Blue Butterfly, scientifically called Polyommatus semiargus, is a small-sized butterfly; its body length measures to about 1 inch (2.54 cm).

Key to identifying this excellent flyer is its alluring blue wings, distinct in both males and females. However, the males possess brighter hues of blue than the females.

  • The upper side of a male Mazarine Blue’s wings exhibits an intense blue color with thin, dark borders.
  • Females, on the other hand, boast a muted blue color with wider, bold brownish-black borders.

Their wingspans range from 1 to 1.5 inches (2.5 to 3.8 cm), making them a pleasure to spot in their natural habitats.

Another hallmark characteristic of the Mazarine Blue Butterfly is the unique pattern visible on the undersides of their wings. This comprises a series of black and white “eyespots” surrounded by orange crescents.

The structure of these spots varies by species, constituting a crucial aspect of their identification.

Notably, the Mazarine Blue Butterfly is rather sluggish at dawn and then turns active as soon as the sun arises. Its wings showing off various shades when the sunlight strikes at different angles create truly mesmerizing sights.

Emphasizing on their name, Mazarine blues remarkably embody the shade of Mazarine, a deep blue color that adds a dash of mystery to their presence.

The entire body of Mazarine Blue butterfly, including their antennas, legs, and even their eyes is covered with scales, giving them a uniquely textured appearance.

How to Identify Male and Female Mazarine Blue Butterfly?

Distinguishing between male and female Mazarine Blue Butterflies can be an interesting venture. The key differentiating factor is in their physical features.

Male Mazarine Blue Butterflies have wings that boast an astonishingly bright blue shade on the upper side. This blue hue can vary, sometimes having a tendency towards purple.

The eye-catching color, edged with a black border and white fringes, makes these males quite conspicuous in the wild.

On the other hand, Female Mazarine Blue Butterflies present a slightly different palette. The upper side of their wings displays a more brownish coloration.

Yet, by no means does this render them less stunning. The undersides of both males and females are a lighter greyish-blue, peppered with black and white spots.

Size can act as a secondary distinguishing feature. The wingspan of these butterflies ranges from 22 to 32 mm, or about 0.9 to 1.3 inches, with females often being slightly larger.

In conclusion, while male and female Mazarine Blues display a different color palette, both exhibit their own unique vibrant beauty. This coloration aspect can act as a simple guide to identifying their gender.

As you observe these butterflies in their natural habitat, pay close attention to their size and color patterns to accurately identify their sex.

What is the Mating Ritual of Mazarine Blue Butterfly?

Observing the mating ritual of the Mazarine Blue Butterfly is truly a spectacle. These butterflies exhibit a unique and fascinating courtship.

This ritual often involves complex dances, aerial pursuits, and certain unique stances and maneuvers.

In this ritual, males are known to patrol a specific area, waiting for a potential mate. They hover around regions rich in flowering plants, using these colorful landscapes as their courting arenas.

It’s not merely about staying put though. The males engage in lively aerial pursuits, wooing females through high-speed chases and acrobatic maneuvers.

Communication is also key. Males exhibit a “courtship stance” which involves extending and vibrating their wings, a mannerism that’s believed to facilitate the exchange of pheromones.

This stance, coupled with the right blend of scents, is used to attract and court the female specimen.

Before mating, a “rejection movement” is a possibility if a female is unimpressed. In such instances, the female will close her wings and raise her abdomen to signal her refusal.

But, if the female is amenable, she will adopt a receptive posture, facilitating the mating process.

Here you have it. The Mazarine Blue Butterfly’s mating ritual involves a sophisticated blend of dynamic vineyard chases, intricate dance moves, and complex olfactory communication.

This beautiful display of nature truly underscores the Mazarine Blue Butterfly as an enchanting and unique creature.

What Does the Caterpillar of Mazarine Blue Butterfly Look Like?

The caterpillar of the Mazarine Blue butterfly offers an intriguing spectacle to the beholder. Covered in tiny hairs, its body tapers at both ends, presenting a streamlined appearance.

The colors of the Mazarine Blue caterpillar are in a palette of nature’s best green, making it well camouflaged among its food plants.

Let’s delve deeper. The first instar stage is a light, leaf green color, blending perfectly with the surroundings. As the caterpillar grows into its second and third instar stages, it develops darker green lines running along its body length.

This pattern resembles the veins of foliage, providing an increased level of camouflage.

The caterpillar continues to evolve in the fourth instar stage, with spots developing along its dorsal line. Wondering about the size?

A Mazarine Blue butterfly caterpillar can be as long as 1.4 inches (approximately 35 mm). Quite impressive, isn’t it?

Of course, the caterpillar’s appearance isn’t just for show. These distinctive characteristics, their colors, and patterns, all serve the purpose of deterring predators, a brilliant survival mechanism at work.

Do remember, however, to enjoy this wonderful creature from a distance. Disturbing its habitat could endanger not only the caterpillar but also the delicate balance of the ecosystem it inhabits.

What is the Life Cycle of Mazarine Blue Butterfly?

The life cycle of the Mazarine Blue Butterfly, scientifically known as Cyaniris semiargus, follows the typical lifecycle stages of a butterfly: egg, larva (caterpillar), pupa (chrysalis), and adult.

The significant details of each stage are fascinating and showcases the undeniably magnificent existence of this creature.

Egg Stage:

The females deposit their eggs on a suitable host plant, usually on the underside of leaves. These eggs are whitish, small, and round in shape.

Larva (Caterpillar) Stage:

The larva, or caterpillar, emerges from its egg in around 1-2 weeks. It’s predominantly brown in color with rows of spiky hairs, and about 1.5cm (half an inch) in length. Its diet consists of plant material from the host plant.

Pupa (Chrysalis) Stage:

Following a period of rigorous feeding and growth, it transitions into the chrysalis or pupa stage, where it encloses itself in a protective shell. This phase can last roughly two weeks.

Adult Stage:

Finally, an adult butterfly emerges, revealing a small creature with vibrant blue or brown wings, depending on whether it’s a male or female.

The Mazarine blue butterfly is very tiny, with a wingspan ranging from 3cm to 3.5cm (1.2-1.4 inches).

The lifecycle is cyclical and can finish in a span of a few weeks; however, timing varies based on factors like climate or available resources.

Mostly, the life cycle repeats itself annually, producing one generation per year.

What Is the Average Life Expectancy of a Mazarine Blue Butterfly?

Ever wondered how long a Mazarine Blue Butterfly can live? Despite the fragility of their wings, these tiny creatures have a rather surprising lifespan.

Typically, the adult Mazarine Blue Butterfly has an average life expectancy of about 1 month.

Yes, you heard it right, just a month! Yet, the life cycle from egg to adult spans approximately 9 to 14 weeks depending on environmental conditions.

The duration of each stage in the Mazarine Blue Butterfly’s life cycle can fluctuate depending on variable factors such as temperature, humidity, and food availability.

For instance, the larval stage usually lasts about 2 to 3 weeks in optimal conditions. However, in cooler or unfavorable circumstances their development may be delayed, extending their life expectancy slightly.

The prolonged period of survival for the Mazarine Blue Butterfly lies in the pupal or chrysalis stage. The butterfly remains in this stage for about two weeks, protected within a cocoon and safe from predators.

So, it’s essential to note that while the adult butterflies exhibit exceptional beauty for a brief period, the majority of the Mazarine Blue Butterfly’s life is spent in preparation for this fleeting moment of glory.

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

The Mazarine Blue Butterfly primarily feasts on nectar from flowering plants. Their diet consists of minerals and proteins that they absorb through a unique feeding method. Let’s have a deeper look.

Caterpillars of this species are herbivorous. Enabled with fabric-like jaws, they feed on a variety of legumes. This includes plants from the ViciaTrifolium and Lotus genera, among others.

When metamorphosed into butterflies, their food choices become more limited. Their proboscis, a long straw-like tongue, is especially designed for slurping nectar; rendering them nectarivorous.

The butterfly is seen frequenting meadows abundant with flowering plants, showcasing its dietary preference. Floating from blossom to blossom, they are known to favor clovers and wild peas.

Meanwhile, their nourishment is not confined solely within the boundaries of sweet nectar. Butterflies, including this one, are known for their ‘mud-puddling’ behavior.

This is where they settle on moist substrates such as mud to suck nutrients. This bizarre yet ingenious act enables them to ingest necessary nutrients that nectar fails to provide.

In short, the Mazarine Blue Butterfly thrives on a diet of legume leaves as caterpillars, and plant nectar or mineral rich mud as adults.

They are meticulous in their selection; focusing largely on flowering plants and damp earth for obtaining the nutrients necessary for survival.

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

The Mazarine Blue Butterfly, akin to other butterfly species, is highly reliant on specific host plants for its survival.

Uniquely, these Mazarine Blue Butterfly larvae’s primary host plants are predominantly of the Fabaeceae or Legume family.

  • Melilot, otherwise known as sweet clover, is a typical host for egg-laying. Female butterflies are instinctively drawn to it due to its potent, sweet fragrance. They lay their eggs on the underside of Melilot leaves, favoring younger and healthier plants.
  • Other plants in the Legume family, such as Bird’s-foot Trefoil and Common Restharrow, are also fitting hosts. Bird’s-foot Trefoil serves as an important food source for larvae, while Mazarine Blue’s are often found on Common Restharrow, enjoying the abundant nectar.
  • Certain types of grass are another appreciable host, providing shelter and camouflage for the Mazarine Blue Butterfly. They nestle in the thick grass during the day and emerge at dusk when their predators are less active.

These plants’ presence directly influences the species’ distribution, survival, and reproduction.

Their absence may make an area unsuitable for Mazarine Blue Butterflies to thrive, hence underlining the utmost importance of plant biodiversity for these brilliant blue creatures.

What are the Unique Mimicry Behaviors in Mazarine Blue Butterfly?

In the animal kingdom, mimicry is a fascinating survival strategy, and the Mazarine Blue Butterfly is an adept practitioner.

This tiny creature employs a unique form of Batesian mimicry, named after the famed English naturalist who first studied it.

  • Batesian Mimicry: The Mazarine Blue Butterfly’s color and pattern resemble those of a toxic species, deceiving potential predators into thinking it’s dangerous as well. Think of it as nature’s case of mistaken identity; it looks similar to the sour-tasting Gossamer-winged butterflies, deterring predators from making an unpleasant meal.
  • Flight Mimicry: Apart from its wing patterns, the Mazarine blue butterfly can mimic other species’ flight patterns. This exceptional skill acts as an additional deterrent for predators, enhancing the butterfly’s chances of survival.

To further enhance their camouflage, the Mazarine Blue Butterflies spend most of their time in the blue-flowering meadows and landscapes, making them less visible to predators.

Now, isn’t that smart! Moreover, males often rest on the grass with wings closed so that the underwing color blends perfectly with the surroundings.

These unique mimicry behaviors of the Mazarine Blue Butterfly are one of its most important survival tools and a captivating example of nature’s ingenuity and adaptability.

In the end, survival can often come down to the smallest details.

What Are the Main Threats to Mazarine Blue Butterfly Populations?

Like many species, the Mazarine Blue Butterfly faces several threats. Both anthropogenic and natural factors contribute to their declining population.

Habitat Loss. This is probably the most significant threat; these butterflies need specific habitats to thrive. Human activity, like industrial development and agriculture, contributes to the eradication of their habitats.

Use of Pesticides. Interestingly, agriculture plays a dual role in threatening their survival. Besides causing habitat loss, the widespread use of pesticides kills these small creatures outright. A single spray can decimate a whole population.

Climate Change. Rising global temperatures could potentially disrupt the life cycle of these butterflies. This affects their breeding patterns, survival rates, and habitats.

Predation. Predation, though natural, can also pose significant threats. Birds, animals, and even other insects feed on these butterflies in both their larval and adult phases.

Moreover, these threats are sort of interconnected. For instance, habitat loss may lead to higher rates of predation as the butterflies become exposed.

It’s obvious that the survival of the Mazarine Blue Butterfly requires direct conservation efforts. These could range from limiting the use of pesticides to actively protecting their habitats.


In conclusion, the Mazarine Blue Butterfly is a fascinating creature with unique behaviors and a diverse diet. Its life cycle, habitat, and mating rituals are captivating.

What are your thoughts about this remarkable butterfly?

Please leave your comments below.

Butterflies   Updated: September 19, 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.

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