Weyenbergh, Tijdschr. Ent. xvii. 1874, p. 220, Pl. xiii.
Jones, P. Liverpool Soc. xxxiii. 1879, p. lxxvii.
Studies in the Theory of Descent, part 2, London, 1881.
Tr. ent. Soc. London, 1885 and 1886.
Tijdschr. Ent. xl. 1897, pp. 27-103, 4 plates.
Weyenbergh, Tijdschr. Ent. xvii. 1874, p. 220, Pl. xiii.
Jones, P. Liverpool Soc. xxxiii. 1879, p. lxxvii.
Studies in the Theory of Descent, part 2, London, 1881.
Tr. ent. Soc. London, 1885 and 1886.
Tijdschr. Ent. xl. 1897, pp. 27-103, 4 plates.