Gordon wrote:
What about flies in other forms of art, poetry, sculpture, opera (der flydermouse for instance), well maybe not, but also flies in humour.

The most famous fly poem is of course William Blake's,

Little fly

Little Fly,
Thy summer's play
My thoughtless hand
Has brushed away.

Am not I
A fly like thee?
Or art not thou
A man like me?

For I dance
And drink and sing,
Till some blind hand
Shall brush my wing.

If thought is life
And strength and breath,
And the want
Of thought is death,

Then am I
A happy fly,
If I live
Or if I die.