dun fly

noun

Angling.

1. a dun-colored artificial fly that resembles the larval stage of certain real flies.

Word History and Origins

Origin of dun fly¹

late Middle English word dating back to 1400–50

Example Sentences

The flies I have just named will kill well in the Carra, with a small black one, like a midge, ribbed with silver, with a honey dun fly made very small.

From Project Gutenberg

The second is another dun fly: the body of black wool; and the wings made of the black drake’s feathers, and of the feathers under his tail.’

From Project Gutenberg

The first is the dun fly in March: the body is made of dun wool, the wings of the partridge’s feathers. 

From Project Gutenberg

So the old hen who has swallowed the dun fly is killed, plucked, and roasted, and certain "black Dartmoor mutton" is put on the gridiron, and being compelled to confess the truth by that fiery torment, proclaims itself to all noses as red-deer venison.

From Project Gutenberg