Through The Looking Glass by Lewis Carroll Chapter 3 Page 14

‘And what does it live on?’

‘Frumenty and mince pie,’ the Gnat replied; ‘and it makes its nest in a Christmas box.’

‘And then there’s the Butterfly,’ Alice went on, after she had taken a good look at the insect with its head on fire, and had thought to herself, ‘I wonder if that’s the reason insects are so fond of flying into candles — because they want to turn into Snap-dragon-flies!’

‘Crawling at your feet,’ said the Gnat (Alice drew her feet back in some alarm), ‘you may observe a Bread-and-Butterfly. Its wings are thin slices of Bread-and-butter, its body is a crust, and its head is a lump of sugar.’

‘And what does it live on?’