Schiödte, Ann. Sci. Nat. Zool. (4) v. 1857, p. 169.

[107]

Biol. Centr. Amer. Col. ii. pt. i. 1888, p. 156.

[108]

Monograph, Trichopterygia illustrata, by A. Matthews, London, 1872.

[109]

For further information refer to Matthews, An Essay on Hydroscapha, London, 1876, 20 pp. 1 pl.

[110]

Ann. Nat. Hist. (5) xix. 1887, p. 115.

[111]