YorkshireNewbee · Yorkshire, UK · Queens · Jun 24, 2026
Queen cell timeline sanity check — my numbers don't add up and I'm second-guessing everything
Yorkshire, first year, learning bee math the hard way. Everyone says queen: egg day 0, cell capped day 8, emerges day 16 give or take one. So here's my problem. I found charged queen cells with fat larvae swimming in royal jelly on June 14 — definitely open. By my maths those larvae were maybe 4-5 days from egg. That should mean capping around June 17-18 and emergence around the 25th-26th.
Except I looked yesterday (June 23) and one cell is already open at the bottom with that neat hinged cap, so she's OUT, days early by my count. Did I mis-age the larvae, or is the 16-day thing not actually reliable? And more importantly — the old queen is gone (I assume swarmed around the 14th-16th), so when should I realistically expect eggs from the new one? Trying very hard not to open the box every two days.
#queen-cells#bee-math#virgin-queen#swarm
▲ 12 votes💬 4 replies✅ Solved
4 replies
ImkerinLena · Jun 24, 2026 · ✅ Accepted answer
Your framework is right, your day-zero is wrong — the classic error. Larvae 'swimming in jelly' are already 2-3 days old as larvae, i.e. day 5-6 from egg (3 days as egg first). So your cells were capped around June 16-17 and emerging the 24th-25th — and the FIRST cells started before you found any. An open cap on the 23rd fits an egg from about the 7th. The timeline is reliable; our estimate of the start point rarely is. For eggs: mating flights weather permitting, laying typically 2-3 weeks after emergence. Look July 7-10, not before.
CorkBeeRon · Jun 24, 2026
What ImkerinLena said. And genuinely, close the box until at least July 7. A virgin on the comb is skittish and easy to miss, and every disturbance risks her getting balled or lost on a flight. No eggs by mid-July, THEN you think about a test frame of open brood.
PasiekaOlek · Jun 24, 2026
The 16 days is solid biology, ±1 for temperature. What killed me my first year was exactly this — 'day 0' is when the EGG was laid, not when you found the cell. By the time a queen cell is obvious to us it usually has less than a week left on the clock.
YorkshireNewbee · Jun 25, 2026
That makes so much sense, I was aging from discovery not from the egg. Calendar marked for July 8, sitting on my hands until then. Thanks all — first swarm season is humbling.