Around 20,000 bee species exist. Roughly 90% are solitary, almost none make honey, and most of the ones in genuine trouble are not the one on the jar.
BeesReviewed 2026-08-02
The numbers
Around 20,000 described bee species worldwide, in seven families.
Around eight to eleven of them are honey bees, in the genus Apis.
Roughly 90% of all bee species are solitary — one female, one nest, no workers, no caste.
About 250 bumblebee species and about 500 stingless bee species make up most of the rest of the social bees.
Britain alone has around 270 bee species; the United States has around 4,000. In both cases exactly one is the honey bee.
A solitary bee's whole life is this: emerge, mate, find or dig a nest, provision each cell with pollen and nectar, lay one egg per cell, seal it, and die — usually weeks before the offspring emerge. There is no colony, no honey, no queen, and essentially no stinging, because there are no stores worth defending and a bee that dies defending one cell has lost everything.
Why the confusion causes real harm
This would be pedantry if the two groups were in the same situation. They are not, and the conflation produces advice that is actively counterproductive.
The practical consequence is that installing hives to help bees adds thousands of generalist foragers competing for the same flowers as the wild species already there. In a flower-rich landscape this may matter little. In a city or an intensively farmed area, where forage is the binding constraint, it can make things worse for exactly the bees the gesture was meant to help.
What the other bees do that honey bees cannot
Capabilities honey bees lack
Capability
Who has it
Why it matters
Buzz pollination
Bumblebees, carpenter bees, many solitary bees, stingless bees
Tomatoes, aubergines, blueberries and cranberries hold pollen in tubes that only vibration releases. Honey bees cannot do it at all.
Long tongues
Several bumblebees
Red clover, foxglove, vetches and comfrey are out of reach of a honey bee's roughly 6 mm tongue.
Cold and wet weather flying
Bumblebees, mason bees, mining bees
Spring fruit blossom happens in April, when honey bee colonies are small and reluctant to fly.
Dry pollen carriage
Mason bees, leafcutter bees, mining bees
Loose pollen on abdominal or leg hairs sheds far more readily onto the next flower than a honey bee's wetted leg pellet.
Plant specialism
Many mining bees and other solitary specialists
A bee whose whole life cycle is built around one plant is frequently its most effective pollinator by a wide margin.
What actually helps
Plant flowers rather than keeping hives. Plants add resources; hives add competitors.
Cover the whole season, especially the ends — February and October forage is worth far more than another July plant.
Provide nest sites. Bare undisturbed sunny soil, hollow stems, dead wood and rough tussocky grass. For many species nest sites limit populations more than flowers do, and nobody plans for them.
Include deep tubular flowers for long-tongued bumblebees, which are the group in steepest decline.
Mow less. A lawn cut weekly supports almost nothing; the same lawn cut monthly supports clover, self-heal and the bees that use them.
Leave the mining bee mounds in the lawn alone. They are harmless, temporary and a sign of a healthy garden.
The claims on this page
Every substantive claim is placed on a tier, and the top two tiers must also state what they are not claiming.
Established evidence
Supported by systematic reviews, meta-analyses or clinical/regulatory guidance. The claim would survive a careful reader checking it.
Established evidence
The western honey bee is not a threatened species, and global managed colony numbers have risen over recent decades.
Consistently reported in international assessments and agricultural statistics. Regional and seasonal colony losses can be severe, and are a separate question from the species' global status.
What this does not claim: This is not a claim that honey bee health is unimportant or that beekeepers face no problems — varroa, forage scarcity and pesticide exposure are real. It is a claim about conservation status, not about welfare or management difficulty.
Assessment Report on Pollinators, Pollination and Food Production — Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) (2016) · Systematic reviewLink
FAOSTAT production and trade statistics — Food and Agriculture Organization of the United Nations · Government statistics
Established evidence
Many wild pollinator species are in documented decline.
The IPBES assessment found declines in wild pollinator abundance, diversity and range in the regions where long-term data exist, with habitat loss, land-use intensification, pesticides, pathogens, invasive species and climate change as the identified drivers.
What this does not claim: Data coverage is uneven and largely concentrated in Europe and North America. The assessment does not support a single global figure for pollinator decline, and it does not attribute the pattern to one cause.
Assessment Report on Pollinators, Pollination and Food Production — Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) (2016) · Systematic reviewLink
Sources
The Bees of the World — Johns Hopkins University Press (2007) · Textbook
Field Guide to the Bees of Great Britain and Ireland — Bloomsbury (2015) · Field guide
Assessment Report on Pollinators, Pollination and Food Production — Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) (2016) · Systematic reviewLink
How sources are selected and weighted is set out in the sources and evidence policy.
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