This is called Honeybells or if you want it's full Latin name Nectaroscordum Siculum. I bought these bulbs in Tescos when I was doing my biweekly shop. I seem to recall that I bought them because there was a 2 for £5 offer on the packets to go with a packet of tulips.
The bulbs are planted in a patch of grass with the alliums that I blogged last week and have made a great display. I shall be on the outlook from some more of these for next year.