It started with a woman trying to save money on parking. It ended with the discovery of one of the largest bee aggregations ever recorded on earth — hiding beneath a cemetery that had been there since 1878. This is the story of 5.5 million bees, a jar, and what their survival tells us about the hidden ecosystems beneath our feet.
In this article
- How a routine walk led to a world-record discovery
- The Cornell study: counting the uncountable
- The numbers: bigger than Manhattan, older than a century
- Meet Andrena regularis: the bee you’ve never heard of
- Why a cemetery? The accidental sanctuary
- Why these bees matter for your food supply
- The threat no one is talking about
- What the bees are trying to tell us
Rachel Fordyce had a perfectly sensible reason for walking through East Lawn Cemetery every morning. The Cornell University entomology lab where she worked was on the other side of campus from the affordable parking spots. The cemetery was a shortcut. And in the spring, it was a beautiful one — quiet, green, and old in the way that old cemeteries are, with headstones dating back to the 1870s and towering trees that filtered the morning light.
Then one April morning in 2022, she noticed something. The ground was alive. Bees — thousands of them, maybe more — were emerging from the soil around her feet, hovering at knee height, disappearing into burrows between the graves. She scooped some into a jar and brought them to her supervisor, Professor Bryan Danforth, one of North America’s leading experts on wild bee biology.
What followed was one of the most extraordinary entomological discoveries in recent memory.
The Cornell study: how do you count 5.5 million bees?
Counting millions of individual bees living underground across thousands of square meters is, to put it mildly, not straightforward. The Cornell team developed a methodical approach. Between March 30 and May 16, 2023 — during the brief window when Andrena regularis emerges each spring — researchers set 10 mesh emergence traps at various locations across the cemetery grounds.
The traps captured bees as they emerged from their underground burrows to forage and mate. By counting the bees captured per trap, the team calculated average emergence density: the number of bees emerging per square meter of cemetery soil. They then extrapolated across the total area of the cemetery — approximately 6,000 square meters of suitable nesting ground.
Their estimate: 5.5 million individual bees, with a plausible range of 3 million to 8 million depending on methodological assumptions. The study was published in the journal Apidologie in April 2026.
The numbers: bigger than Manhattan, older than a century
To put those numbers in perspective: the population of Manhattan, one of the most densely inhabited places on earth, is approximately 1.6 million people. The bees beneath East Lawn Cemetery outnumber Manhattan’s human population by more than three to one — packed into a 1.5-acre plot of cemetery ground that most people walk through without a second glance.
The colony dates back at least to the late 19th century, researchers believe, making it older than most of the headstones it lives beneath. For over a century, millions of bees have been quietly emerging from the soil each spring, pollinating the surrounding landscape, and retreating back underground — invisible to the world above.
Meet Andrena regularis: the bee you’ve never heard of but cannot afford to lose
Andrena regularis, commonly called the regular mining bee, is not a honeybee. It does not live in a hive. It does not produce honey. It is not managed by beekeepers. In the public mind, it barely exists at all — which is part of what makes this discovery so significant.
Regular mining bees are solitary: each female digs her own underground burrow, lays her eggs, provisions them with pollen, and seals them. She does this alone, without the support of a colony structure. The 5.5 million bees beneath East Lawn Cemetery are not a single superorganism in the way a beehive is — they are millions of individuals who happen to find the same patch of soil ideal for nesting, and who return to it generation after generation.
They are also specialists. Andrena regularis emerges in a narrow spring window — roughly April to May in New York — that coincides almost precisely with the blooming of apple trees and blueberry bushes. For local orchards and farms, this timing is invaluable. The bees are, in effect, a perfectly synchronized pollination service that costs farmers nothing and has operated without interruption for at least a century.
Why a cemetery? The accidental sanctuary
The East Lawn Cemetery bees thrived not because anyone planned to protect them, but because of what cemeteries happen to be: permanently undisturbed ground. No plowing. No construction. No pesticide application. No tilling, paving, or landscaping that disturbs the shallow soil structure that solitary bees depend on for nesting.
Since the cemetery opened in 1878, the soil beneath the headstones has been relatively untouched. The bees found it, colonized it, and stayed. Generation after generation returned to the same burrow sites, reinforcing and deepening the aggregation year by year over more than a century.
This phrase — the dead protecting the living — is unexpectedly poetic, but the biology behind it is straightforward. Urban cemeteries, by their very nature, provide the kind of stable, undeveloped ground that native pollinators desperately need and increasingly cannot find as cities expand and green spaces disappear beneath concrete.
Why these 5.5 million bees matter for what you eat
For years, Professor Danforth had puzzled over a mystery. In New York State’s apple orchards, Andrena regularis consistently showed up as one of the most abundant pollinator species — sometimes the most abundant of all. At Cornell’s own apple orchard, they outnumbered every other bee species. But where were they coming from? No known nesting site had been identified near the orchards.
Now he knows. Millions of mining bees were emerging from a cemetery less than a kilometer away, fanning out across the surrounding landscape each spring to pollinate the exact crops their emergence timing was perfectly suited for.
Apples. Blueberries. Local soft fruits. These are crops that depend on pollination, and they depend on native pollinators far more than most people realize. Honeybees get the headlines, but studies consistently show that wild native bees — solitary species like Andrena regularis — are often more effective pollinators per individual than managed honeybee colonies, particularly for certain crops in certain conditions.
The East Lawn Cemetery was, unknowingly, functioning as one of the most productive pollinator reserves in upstate New York. And no one knew it existed.
The threat no one is talking about
⚠ Conservation alert
“If we don’t preserve nest sites, and someone paves over them, we could lose in an instant 5.5 million bees that are important pollinators.” — Professor Bryan Danforth, Cornell University
This warning, delivered plainly by one of the study’s senior researchers, deserves to be heard as loudly as possible. The East Lawn Cemetery is protected by its nature as a cemetery — it will not be paved over tomorrow. But the broader question it raises is deeply uncomfortable: how many other aggregations like this exist in the world, in places less protected than a cemetery?
The honest answer is that nobody knows. Ground-nesting bee colonies are invisible unless you happen to walk through them at precisely the right moment in spring. They leave no visible infrastructure. They make no noise detectable to humans. They occupy patches of soil that look, to any developer, like empty land waiting for a building.
Global insect populations have declined dramatically in recent decades. Studies from multiple continents have documented collapses of 40, 50, even 75 percent in insect biomass over thirty years. The causes are well understood: pesticide use, habitat loss, light pollution, invasive species, climate change. But one cause that receives far too little attention is the destruction of nesting habitat — the specific, particular soil conditions that solitary bees need to reproduce, which we obliterate routinely and thoughtlessly whenever we develop land.
The Ithaca bees survived because a cemetery protected their soil. Most of their cousins are not so lucky.
What 5.5 million hidden bees are trying to tell us
There is a version of this story that ends with wonder and nothing more — isn’t it extraordinary that 5.5 million bees were hiding beneath a cemetery? Yes. It is extraordinary. But the wonder should be a doorway, not a destination.
What the Ithaca bees are telling us is that the natural world is full of systems we depend on that we have not yet bothered to look for. That the ground beneath our feet is not empty. That the spaces we think of as marginal or unimportant — old cemeteries, unmown verges, abandoned lots, scrubby patches of waste ground — may be supporting biodiversity that our food systems, our ecosystems, and our own survival depend on.
The most powerful thing you can do, after reading this story, is to stop treating wild ground as wasted ground. Leave patches of your garden unmown. Advocate against the needless paving of green spaces in your city. Support the designation of urban areas as pollinator corridors. Tell your local council that the scrubby patch near the car park might be worth checking before it becomes a car park itself.
Rachel Fordyce saved money on parking and changed what we know about pollinators. Sometimes the most important discoveries happen when we slow down and pay attention to the ground beneath our feet.
