Zur Systematik der orthopteroiden Insekten.

"Extrait de Treubia", v. 1, livr. 4.

Guide to the insects of Connecticut,

Parts I-II contained in Bulletin 16.

Mémoire sur les métamorphoses des Perles /

Caption title.

Third report of the United States Entomological Commission, relating to the Rocky mountain locust, the western cricket, the army worm, canker worms, and the Hessian fly.

Includes index.

Die Geradflügler Mitteleuropas. Neuere Beobachtungen.

Mode of access: Internet.