ORTHOPTERA. 
I.— CATALOGUES. 
Samuel H. Scudder. — A catalogue of the Orthoptera of North Amer- 
ica described previous to 1867. Smithsonian Institution. Miscella- 
neous Collections 189, 1868. 
An alphabetical, not synonymical, list of the Orthoptera described from 
North America ; contains also a full bibliography up to 1867. 
J. Sidney Smith. — Orthoptera of the State of Maine. <Proc. Port- 
land Soc. Nat. Hist., 1868, pp. 143-151. 
A synonymical catalogue of the Orthoptera found in Maiue, with notes on 
habits and distribution of the species. 
Cyrus Thomas. — A list of the Orthoptera of Illinois. <Bull. Ills 
Mus. Nat. Hist., No. 1, 1876, pp. 59-69. 
A synonymical list of the Orthoptera found in Illinois. 
II.— GENERAL WORKS ON CLASSIFICATION. 
J. G. Audinet-Serville. — Histoire naturelle des Insectes Orthop- 
teres. Paris, 1839, 776 pp., 14 plates. 
Natural history of the order up to date, with bibliography and list of species 
described. 
Henri de Saussure. — Orthoptera nova Americana (Diagnoses pne- 
liminares). Series I-III. <Revue et Mag, de Zool., 1859-’6L. 
Contains synoptical tables of species, besides descriptions of numerous North 
American Orthoptera. 
Samuel H. Scudder. — Materials for a monograph of the North Ameri- 
can Orthoptera. <Boston Journal of Nat. Hist., Yol. VII, 1862, 
pp. 409-480. 
Contains synoptical tables and a review of the system used for classification. 
Samuel H. Scudder. — Remarks upon the arrangement of the families 
of Orthoptera. <Proc. Boston Soc. Nat. Hist., Yol. XII, 1868-’69; 
also separate under the title : Entomological Notes, Yol. II, pp. 7-14. 
Samuel H. Scudder. — Synoptical tables for determining North Ameri- 
can insects. Orthoptera. <Psyche, Yol. I, 1876, pp. 169-L71. 
Synopsis of the families of Orthoptera ; also a list of useful works in the study 
of North American Orthoptera. 
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