[156]

Essais entomologiques, St. Petersburg, 1821.

[157]

Beiträge zur näheren Kenntniss von Periplaneta orientalis, Elberfeld, 1853.

[158]

Nouv. Syst. Blattares, 1865, p. 16, etc.

[159]

Naturalist in Nicaragua, 1874, p. 110.

[160]

See Bolivar, Ann. Soc. ent. France, 1892, p. 29.