Descent of Man, Chapters XIII and XIX.
"The Origin of Music" (1857), Essays, vol. ii.
Anyone who is in doubt on this point, as regards bird song, may consult the little book in which the evidence has been well summarized by Häcker, Der Gesang der Vögel, or the discussion in Groos's Spiele der Thiere, pp. 274 et seq.
Thus, mosquitoes are irresistibly attracted by music, and especially by those musical tones which resemble the buzzing of the female; the males alone are thus attracted. (Nuttall and Shipley, and Sir Hiram Maxim, quoted in Nature, October 31, 1901, p. 655, and in Lancet, February 22, 1902.)