Ber. Ges. Freiburg, iv. p. 5; cf. J. R. Micr. Soc. 1889, p. 206.
Tr. Linn. Soc. 2nd ser. Zool. iii. 1883, p. 11.
Fly-Fisher's Entomology, 4th ed. 1849, p. 49.
P. ent. Soc. London, 1882, p. xiii.
Ann. Sci. Nat. series 3, ix. Zool. 1848, p. 91, pl. 1.
Ber. Ges. Freiburg, iv. p. 5; cf. J. R. Micr. Soc. 1889, p. 206.
Tr. Linn. Soc. 2nd ser. Zool. iii. 1883, p. 11.
Fly-Fisher's Entomology, 4th ed. 1849, p. 49.
P. ent. Soc. London, 1882, p. xiii.
Ann. Sci. Nat. series 3, ix. Zool. 1848, p. 91, pl. 1.