the island

number one in plain view, number two's tail is visible from underneath top leaf

 the larvae have moved in to a larger dwelling. I was thinking the biscuit container might soon be too small and decided they needed more room to live in and develop. I had a scare: when I stirred the water and found two larvae, they seemed smaller and didn't move, they looked dead to my inexperienced eye; I was worried that instead of saving them I had driven them to commiting suicide by drowning! What a relief when I came back and they had moved back into the water. Confident they were alive and well, I started wondering about where to move them to and remembered I have this glass bowl in the cellar and thought this would be an ideal container for the larvae: more space, more water, more food, more everything. I placed a brick and on top of that a small rock and a chunk of wood propped up next to it, thinking I have no idea what they'll become and whether they can fly or not, so there have to be several ways for them to leave their nest.  The bowl was filled with muddy dye water and leaves et cetera and some clean tap water: 

 here's a film of numbers one and two moving in:

hi Patricia