Ent. Monthly Mag. xiii. 1877, p. 231.
Entomologist, xxiii. 1890, p. 92.
Mem. Ac. Washington, vii. 1895, 290 pp., 49 plates.
Tr. ent. Soc. London, 1878, p. 121, Pl. v.
Op. cit. 1889, pp. 1-40, 6 plates.
Ent. Monthly Mag. xiii. 1877, p. 231.
Entomologist, xxiii. 1890, p. 92.
Mem. Ac. Washington, vii. 1895, 290 pp., 49 plates.
Tr. ent. Soc. London, 1878, p. 121, Pl. v.
Op. cit. 1889, pp. 1-40, 6 plates.