BeezKnees

Queen Cell Guide

Field Guide UK Focus Swarm / supersedure / emergency

Learn how to identify queen cups, charged queen cells and capped queen cells, where to look on the frame, and what the likely “story” is (swarm, supersedure, or emergency) — without panic decisions. This page is part of the Swarm & Queen Management hub, where you can also compare swarm control methods, queen problems and follow-up timing. It also works closely with the Queen Cell Timeline, Step-by-Step Inspections and the Beekeeper’s Rule Calculator if you want to map what you find against real inspection dates.

← Back to Step-by-Step Inspections

If you have found queen cells during a routine inspection, this guide helps you identify them first, then move into the right action page.

Quick ID (30 seconds):
Rule 1: Cups are not cells
An empty “cup” is just a cup. A queen cell is “charged” only when there’s larva + royal jelly.
Rule 2: Stage matters
Cup → charged → capped. A capped cell usually means you’re on a clock.
Rule 3: Context decides meaning
Location + number + colony condition helps you tell swarm vs supersedure vs emergency.
Field approach: record evidence first, then choose an action.
Jump to
Short “field answers” first, deeper detail after.
Quick ID Decision rules
Quick ID: cups vs charged vs capped
1 min
Start here
Where to look on the frame
2 min
Find them
Swarm vs supersedure vs emergency
3–5 min
Decide
Timeline cheat sheet
1–2 min
Clock
What to do next
Quick guide
Don’t panic
FAQ
Quick answers
Help

Quick ID: cup vs charged vs capped

Field answer
Field answer
Empty cup = usually monitor rather than act. Charged cell (larva + royal jelly) = colony is actively preparing a queen. Capped cell = you’re later in the process; record the stage and act deliberately. If you want the full biological timing behind these stages, use the Queen Cell Timeline.
Cup (play cup)
Often normal
  • Looks like a small acorn-cup.
  • Usually empty and dry.
  • May appear and disappear between inspections.
Charged queen cell
Pay attention
  • Larva present with milky royal jelly.
  • Cell is being extended (longer, peanut texture).
  • Interpret using context: swarm/supersedure/emergency.
Capped queen cell
On a clock
  • Capping is usually domed.
  • Swarm risk may increase (especially in spring).
  • Do not crush cells “just because” — decide based on your plan.
Example queen cell photos (your hive)
These are your own images, used as stage references on this page.
Charged queen cell opened to show larva in royal jelly
Charged queen cell (larva + royal jelly) — close-up.
Another angle of a charged queen cell with larva in royal jelly
Charged queen cell — alternate angle.
Capped queen cell attached to comb with worker bees nearby
Capped queen cell on comb.

Where to look on the frame

Field answer
Field answer
Start with the brood frames. Check lower edges first, then scan the face of comb, then look in “pockets” and between frames. This works best as part of a calm, repeatable inspection routine.
Lower edges
Classic swarm zone
Most swarm cells are often built along the bottom bars/edges of brood frames.
Face of comb
Supersedure often here
Supersedure cells are often fewer in number and can appear on the face/middle area.
Pockets & gaps
Easy to miss
Look in “comb pockets”, brace comb areas, and between frames — especially if bees are dense.
Deeper detail
Don’t over-handle frames while hunting for cells. Work methodically: edge → face → rotate slightly → edge again. If you find one charged cell, assume there may be more.

Swarm vs supersedure vs emergency

Field answer
Field answer
Use the “3 clues”: number, location, colony story. Lots of cells on lower edges in a booming colony often suggests swarm preparation. One or two cells on the face of comb with an underperforming queen often suggests supersedure. Scattered cells raised after queen loss may point to emergency queen cells. For the wider decision tree, use the Swarm & Queen hub.
Swarm cells
Common in spring
  • Often multiple cells.
  • Frequently along lower edges.
  • Colony is strong, congested, or backfilling brood nest.
Supersedure cells
Quiet replacement
  • Often 1–2 cells.
  • May be on the face/middle of frame.
  • Queen may be failing / patchy brood / reduced performance.
Emergency cells
No queen story
  • Can be many, scattered.
  • Built from worker cells around young larvae.
  • Often follows queen loss and is usually raised from very young larvae after eggs are no longer available.
Caution
Misreading the situation is worse than “not doing something fast”. If you’re unsure: take photos, record what you saw (stage + location + number), and seek local guidance.

Follow the Right Queen Cell Guide

Next step

This page helps you recognise what you are looking at. Once you have identified the stage or likely type of queen cell, use the more specific guides below to decide what it means and what to do next.

Queen Cups
Early sign
  • Best if you are unsure whether cups matter yet.
  • Useful for early swarm-season inspections.
Charged Queen Cells
Important stage
  • Use this when you can see larva and royal jelly.
  • Helpful when deciding whether the colony is truly committed.
Capped Queen Cells
Timing matters
  • Important when the timing window is tightening.
  • Useful if you are worried a swarm may be close.
Supersedure Queen Cells
Quiet replacement
  • Best when the queen may be failing rather than the colony preparing to swarm.
  • Pairs well with Supersedure Action.
Emergency Queen Cells
Queen loss
What To Do If You Find Queen Cells
Action page
  • Best once you know what you are looking at.
  • Use this page to move from identification to action.

Timeline cheat sheet

Field answer
Field answer
If you see a capped queen cell, assume the process is already well underway. Record the stage, assess the colony story, and plan your next check or action quickly. For a fuller day-by-day breakdown, use the Queen Cell Timeline or map dates in the Beekeeper’s Rule Calculator.
Day 0–3
Egg stage
  • A queen egg is laid either in a prepared cup or in a worker cell that may later be remodelled by the bees.
  • At this stage, what you may see is often just a cup or a very early started cell.
  • Very easy to miss unless conditions and visibility are good.
Day 4–8
Charged cell
  • The larva is fed royal jelly and the cell is extended.
  • This is the classic charged queen cell stage.
  • If you find cells at this stage in a strong spring colony, you need to think carefully about swarm preparation.
Around Day 8
Capped
  • The queen cell is sealed.
  • This usually means you are on a tighter clock.
  • In swarm season, capped swarm cells can mean the colony is very close to swarming, and in some cases it may already have done so.
Around Day 16
Virgin emerges
  • A virgin queen typically emerges around day 16 from the original egg being laid.
  • By this point, any follow-up plan needs to have already been made.
  • This is why timing after finding charged or capped cells matters so much.
Following days
Mating window
  • The virgin queen then needs time to harden, fly, mate and begin laying.
  • Weather can delay this stage significantly.
  • A colony may therefore appear queenless for a while even though the process is still underway.
What this means in practice
Field use
  • Cup only = monitor and record.
  • Charged = colony is actively preparing a queen.
  • Capped = act with purpose; don’t assume you still have plenty of time.
Important note
The timeline tells you how far the queen cell has developed, but it does not by itself tell you why the colony made it. Always combine timing with cell number, location, queen evidence and colony condition. For a fuller day-by-day view, see the Queen Cell Timeline. If a virgin queen is now expected, follow up with Virgin Queen Timeline. It also helps to place these findings into the wider seasonal pattern using Year in the Apiary, especially through April, May and June. If a virgin queen is now expected, follow up with Virgin Queen Timeline.

What to do next

Field answer
Field answer
Don’t panic-cut cells. First: confirm queen evidence (eggs/young larvae), assess congestion, and record stage + location + number. Then choose a plan that matches your goals.

For practical next steps, go to What To Do If You Find Queen Cells. If the colony is clearly preparing to swarm, compare Swarm Prevention, Artificial Swarm, Split a Hive and Split Methods. If you want to map queen cell timing against a real date before acting, use the Beekeeper’s Rule Calculator.

If it looks like swarm prep
Spring priority
  • Reduce congestion: space management matters.
  • Work to a known swarm-control method you’re confident with.
  • Set a clear follow-up visit goal (and date).
If it looks like supersedure
Often “let it happen”
  • Fewer cells; colony replacing a failing queen.
  • Record brood pattern + queen status evidence.
  • Avoid unnecessary disruption.
If it looks like emergency
Act carefully
  • Confirm if there are eggs/young larvae present.
  • Consider whether the colony needs support (advice/mentor).
  • Keep notes and avoid repeated heavy inspections.

FAQ

Quick answers
Do I need to find the queen if I see queen cells?
Not always. Evidence of a laying queen (eggs/young larvae) plus context is usually more useful than a long queen hunt.
Are queen cups always swarm signs?
No. Empty cups can be normal. Charged cells (larva + royal jelly) are the key change.
Should I cut out queen cells?
Avoid “automatic” cutting. First record stage + number + location and choose an action based on a clear plan.
Where are swarm cells usually found?
Commonly along the lower edges of brood frames — but always check the whole brood area methodically.
What should I write in my notes?
“Queen evidence (eggs/larvae), number of cells, stage (cup/charged/capped), location (edge/face), colony congestion, actions taken + follow-up goal.”

Related Swarm & Queen Guides

Keep going

Once you have identified queen cells, the next job is deciding what they mean in practice. Use the Swarm & Queen Management hub for the full cluster, or go straight to the most relevant guide below.