Monograph by Hampson, P. Zool. Soc. London, 1895, p. 897-974.
Disqué, Ent. Zeit. Stettin, li. 1890, p. 59. Cf. also Rebel, Zool. Jahrb. Syst. xii. 1898, p. 3.
Classification; Meyrick, Tr. ent. Soc. London, 1886, p. 1.
P. Linn. Soc. N. S. Wales (2), vi. 1881, p. 410.
Handbook Brit. Lep. 1895, p. 493.