Apis mellifera worker foraging on lavender.
Luc Viatour, CC BY-SA 3.0, via Wikimedia Commons

Apis mellifera Linnaeus, 1758, the western honeybee, is the single most economically important insect on Earth. A eusocial species in the family Apidae, it is the primary managed pollinator of global agriculture and the only bee domesticated at industrial scale for honey production. Its native range spans Europe, the Middle East, and Africa; through deliberate human introduction it is now established on every inhabited continent. Workers measure 10 to 15 mm; queens 18 to 20 mm. The species is subdivided into more than 30 recognised subspecies arranged across four to five evolutionary lineages. Learn about the six-generation family behind our honey on the HoneyBee & Co. heritage page, explore relatives in the World Bee Atlas and see the UK regions where it is found at our UK Native Bee Species Map.

Taxonomy and Classification

Carl Linnaeus formally described the western honeybee in 1758 in Systema Naturae, 10th edition (page 576), assigning it the name Apis mellifera, from the Latin mel (honey) and ferre (to carry). Linnaeus himself later proposed the synonym Apis mellifica (honey-making bee), which he considered more accurate, but under the International Code of Zoological Nomenclature the original name mellifera takes precedence and cannot be superseded.^[1] The lectotype is held in the Linnean Collection, London.

The genus Apis comprises eight living species, of which A. mellifera is the sole western species; all others are native to Asia. Within A. mellifera, Engel (1999) recognised 28 subspecies in the most comprehensive formal revision to date.^[2] Three further subspecies have been described since: A. m. pomonella (Sheppard and Meixner, 2003), A. m. simensis (Meixner et al., 2011), and A. m. sinisxinyuan (Ilyasov et al., 2016), bringing the current count to at least 31.^[3] Some recent molecular analyses propose up to 33 subspecies; the taxonomy remains actively debated.

The subspecies are divided into four to five major evolutionary lineages based on morphometric and molecular analysis. Lineage A encompasses African subspecies; lineage M the subspecies of western and northern Europe (including A. m. mellifera, the dark European honeybee native to Britain); lineage C the subspecies of eastern and southern Europe (including A. m. ligustica, the Italian bee widely kept by commercial beekeepers worldwide); and lineage O the subspecies of Turkey and the Middle East. A fifth lineage, Y, is recognised by some authors for Yemeni and East African populations.^[5]

Physical Description

Apis mellifera exhibits the pronounced caste dimorphism typical of eusocial bees. The three castes (worker, queen, and drone) differ substantially in size, morphology, and function.

Workers

Workers are sterile females measuring 10 to 15 mm in length, though size varies across subspecies; northern and high-altitude subspecies tend to be larger than tropical ones. The body is broadly amber to brown-banded, with the degree of yellow colouration varying considerably between subspecies. Workers bear corbiculae (pollen baskets) on their hind tibiae, a barbed sting formed from a modified ovipositor, and a wax-secreting apparatus comprising four pairs of abdominal mirror glands. Workers have longer wings relative to body length than drones or queens. Worker lifespan is 6 to 7 weeks during summer; overwintering workers may live 4 to 6 months.^[6]

Queens

The queen is the sole reproductive female in a colony. She measures 18 to 20 mm and is distinctly elongated through the abdomen, which extends well beyond the wing tips. Unlike the worker, the queen's sting is smooth and curved, allowing repeated use without self-injury. A mated queen stores between 3 and 7 million sperm in the spermatheca after her nuptial flights, which she uses to fertilise eggs throughout her reproductive life. Queen lifespan in most subspecies is 3 to 5 years, though individuals of the dark European A. m. mellifera subspecies have reportedly lived up to 8 years.^[7]

Drones

Drones are unfertilised males measuring 15 to 17 mm. They are characterised by markedly enlarged compound eyes that meet at the dorsal midline of the head, a feature associated with visual tracking of queens during mating flights. Drones possess no sting and do not forage. They are present in the colony from spring through early autumn and are expelled by workers at the onset of winter.

Distribution and Habitat

The natural range of Apis mellifera is the Old World landmass: Europe, Africa, and the Middle East. No native Apis species existed in the Americas, Australasia, or East Asia prior to human introduction. European colonisers introduced western honeybees to North America in the early 17th century, to Australia in 1822, and progressively to the rest of the world through the 19th and 20th centuries.^[7] The species is now established on every continent except Antarctica.

In Britain, A. m. mellifera is the native subspecies, present since at least the medieval period and possibly earlier. The species is a cavity nester, occupying hollow trees, rock crevices, and building cavities in the wild, and managed hive boxes in beekeeping. Natural colonies in deciduous woodland occupy cavities of 20 to 80 litres, with a preference for sites 5 metres or more above ground, facing south or south-east, with a small entrance hole.^[8]

See which UK regions host A. mellifera colonies and discover the solitary and bumblebee species that share the same habitats at our UK Native Bee Species Map. For the global distribution across Europe, Africa, and all introduced ranges, visit the World Bee Atlas.

Behaviour and Life Cycle

Colony structure and the superorganism

A mature Apis mellifera colony comprises a single queen, 20,000 to 80,000 workers, and seasonally a few hundred to several thousand drones. The colony functions as a superorganism: reproduction, thermoregulation, foraging, and defence are managed collectively rather than at the level of the individual. Colony fitness, rather than individual bee fitness, is the biologically significant unit of selection. For a detailed look at how workers convert nectar into honey within this superorganism, see our guide to how bees make honey.^[7]

The waggle dance

Apis mellifera possesses the most sophisticated known communication system among non-human animals outside primates. The waggle dance, first described and decoded by Austrian ethologist Karl von Frisch (Nobel Prize in Physiology or Medicine, 1973), encodes both the direction and distance of a food source relative to the sun's azimuth. A forager returning to the hive performs a figure-eight pattern on the vertical comb surface: the angle of the waggle run relative to vertical corresponds to the angle between the food source and the sun, while the duration of the waggle phase encodes distance. A one-second waggle run represents approximately 1 kilometre.^[9]

Swarming and reproduction

Colony reproduction occurs through swarming, typically in spring when the colony has reached peak population. The old queen departs with approximately half the workers to found a new colony; the remaining workers rear a new queen from existing larvae. A healthy colony may swarm once or occasionally twice per season. Swarming is the primary means by which free-living A. mellifera populations maintain themselves in the wild.^[7]

Overwintering

Unlike most bee species, A. mellifera maintains a perennial colony that survives winter as a cluster of several thousand workers surrounding the queen. Workers generate heat through isometric contraction of flight muscles, sustaining the cluster at approximately 20 to 35°C even when external temperatures fall well below freezing. This adaptation, absent in all Asian Apis species, is a key feature that enabled the colonisation of temperate northern Europe and is a defining characteristic of the M lineage subspecies.

Conservation Status

The conservation status of Apis mellifera requires careful distinction between managed and wild populations, as their trajectories differ substantially.

Wild populations

In October 2025, an international team of 14 researchers coordinated by Honey Bee Watch formally updated the IUCN Red List assessment of wild Apis mellifera populations in the European Union from Data Deficient (2014) to Endangered.^[10] The assessment, led by Arrigo Moro (University of Galway), found that free-living colony numbers have declined sufficiently to meet the IUCN threshold for Endangered status. The same Endangered designation was extended to south-east England and Switzerland; the wider European assessment (outside EU27) was classed as Data Deficient due to insufficient monitoring data.

For decades, wild honeybees in Europe were assumed to be functionally extinct, replaced entirely by managed colonies. Recent field surveys have confirmed this assumption is incorrect: free-living colonies persist in tree cavities across Ireland, the UK, France, Germany, Poland, Serbia, and elsewhere, representing an ecologically and genetically distinct wild subpopulation. Europe nevertheless has the lowest density of free-living colonies globally, and managed hives vastly outnumber wild nests.^[11]

Managed populations

Managed A. mellifera populations are broadly stable globally, though subject to significant annual colony losses in North America and Europe. Colony Collapse Disorder, a syndrome of rapid and unexplained colony abandonment first documented widely from 2006 — explored in depth in our article on why bee populations are declining — caused severe losses in the United States and parts of Europe in the late 2000s. The causes remain incompletely understood but are believed to involve interactions between Varroa, pathogens, pesticides (particularly neonicotinoids), and nutritional stress. Annual colony loss rates in the UK and EU typically range from 10 to 30%.

Relationship to Honey and Pollination

Apis mellifera is the most economically significant pollinator in global agriculture. The FAO estimates that 35% of global food production by volume depends on pollinators, with A. mellifera contributing the majority of managed pollination services. Between $235 billion and $577 billion worth of annual global food production relies on bee pollination according to IPBES data, with A. mellifera accounting for the dominant share of managed services.^[12] In the United Kingdom, western honeybees contribute approximately 34% of domestic pollination service demand.^[13]

Honey production by A. mellifera is entirely a function of nectar source, geography, and climate. Colonies foraging on black locust (Robinia pseudoacacia) produce the delicate, water-white acacia honey; colonies on heathland heather (Calluna vulgaris) produce the intensely aromatic, thixotropic heather honey; colonies on mixed wildflower meadows produce the complex, regional wildflower honeys. The flavour, colour, and crystallisation properties of each variety are a direct expression of the foraging choices made by tens of thousands of worker bees across a season.

From our Transylvanian apiary

Raw Acacia Honey | £10.99

Single-origin black locust honey from Apis mellifera colonies managed by our family in the Transylvanian highlands. Light, slow to crystallise, and distinctively floral.

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Apis mellifera and HoneyBee & Co. Honey

Every jar of HoneyBee & Co. honey is produced by Apis mellifera colonies. Our range spans two distinct beekeeping traditions: a six-generation family apiary in the Transylvanian highlands of Romania, and a SALSA-certified British beekeeping partner supplying wildflower, soft set, and heather varieties from the UK Midlands and Yorkshire Moors. Understanding the species that makes our honey is inseparable from understanding what goes into each jar.

Transylvanian honeys: acacia, linden, and sunflower

Our Transylvanian apiary sits in a region of eastern Romania where Apis mellifera carnica (the Carniolan bee, lineage C) has been kept for generations alongside local mixed-lineage colonies. The landscape produces three distinct monofloral honeys, each tied to a single flowering event in the Transylvanian calendar.

Acacia honey is harvested in early June from colonies foraging on black locust (Robinia pseudoacacia), an introduced tree that dominates the lower hillsides of Transylvania. The nectar is exceptionally high in fructose, which makes acacia honey the slowest to crystallise of any European variety and gives it its characteristic water-clarity and delicate floral sweetness. Our raw acacia honey is our lead product and our largest harvest — the same colonies, the same hillsides, managed by the same family since Dragos's grandfather Grigore first kept bees here in the 1950s.

Linden honey follows in late June and early July, when lime trees (Tilia spp.) flower across the valleys. Linden honey has a pronounced herbal character — slightly mentholated, with a greenish tinge in the fresh harvest — and is traditionally prized in central and eastern Europe as a tea honey. Our linden honey carries that same character from the Transylvanian lime forests.

Sunflower honey is harvested in August from colonies worked across the sunflower fields of the lower Transylvanian plains. Sunflower honey crystallises rapidly to a firm, pale yellow set — a natural property of its high glucose content, not a sign of adulteration or age. Our raw sunflower honey is harvested and jarred before crystallisation begins in the comb.

British honeys: wildflower, soft set, and heather

Our British range is produced by a SALSA-certified UK beekeeping partner whose colonies forage across the English Midlands and the Yorkshire Moors. British Apis mellifera populations are predominantly hybrid, with A. m. ligustica (Italian) and A. m. carnica (Carniolan) genetics dominant in managed hives, though traces of the native dark bee A. m. mellifera persist in feral and traditionally managed colonies in northern England.

Wildflower honey reflects the full spectrum of whatever is flowering within foraging range across the season: clover, borage, phacelia, bramble, lime, and dozens of hedgerow species. No two harvests are identical. Our British wildflower honey is raw, unfiltered, and varies subtly year to year in colour and aroma — which is exactly as it should be.

Soft set honey is the same wildflower honey managed through a controlled crystallisation process that produces a smooth, spreadable consistency without heating. The enzymatic profile, pollen content, and raw character are preserved. It is simply a different physical form of the same harvest. Our soft set honey suits anyone who prefers honey that stays where you put it on toast.

Heather honey is our most distinctive British variety and the only one in our range priced at a premium. Yorkshire Moors heather (Calluna vulgaris) flowers for a brief window in August, and colonies must be moved onto the moorland at precisely the right time to catch the flow. The resulting honey is thixotropic — it gels in the jar and liquefies when stirred, a property unique to heather honey caused by protein structures in the nectar. Our British honey supplier holds SALSA Certification, and our Yorkshire heather honey is harvested from a single annual yield. When it is gone, it is gone until the following August.

British Midlands

Raw Wildflower Honey | £10.99

Raw, unfiltered British wildflower honey. Every harvest reflects the season.

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Yorkshire Moors — Single Annual Harvest

Raw Heather Honey | £12.99

Thixotropic Yorkshire heather honey. One harvest per year from August moorland.

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All six varieties are available as a monthly honey subscription with 20% off and free UK delivery on every order. If you want to try the range before committing, our honey gift sets are a good place to start. For a deeper look at how Apis mellifera colonies turn nectar into the finished jar, read our guide to how bees make honey.

Source Conflicts and Open Questions