What is "devil's darning-needle"

Darn \Darn\ (d[aum]rn), v. t. [imp. & p. p. Darned (d[aum]rnd); p. pr. & vb. n. Darning.] [OE. derne, prob. of Celtic origin; cf. W. darnio to piece, break in pieces, W. & Arm. to E. tear. Cf. Tear, v. t.] To mend as a rent or hole, with interlacing stitches of yarn or thread by means of a needle; to sew together with yarn or thread. He spent every day ten hours in his closet, in darning his stockings. --Swift. Darning last. See under Last. Darning needle.

1. A long, strong needle for mending holes or rents, especially in stockings.

2. (Zo["o]l.) Any species of dragon fly, having a long, cylindrical body, resembling a needle. These flies are harmless and without stings.

   Note: [In this sense, usually written with a hyphen.] Called also devil's darning-needle.