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DIPTERA. 
I.—CATALOG UES. 
C. R. OSTEN SACKEN.—Catalogue of the described Diptera of North 
America. Washington, Smithsonian Institution, 1858. <Smith- 
sonian Miscell. Collections, Vol. ILI. 
C. R. OSTEN SACKEN.—Catalogue of the described Diptera of North 
America. [Second edition.; Washington, Smithsonian Institu- 
tion, 1878. <Smithsonian Miscell. Collections, 270. 
This completely supersedes the first edition and contains by far more than a 
synonymical reference list of the North American Diptera. 
II.—GENERAL WORKS ON CLASSIFICATION. 
F. W. MEIGEN.—Systematische Beschreibung der bekannten euro- 
paischen zweifliigeligen Insecten. 7 vols. Aachen und Hamm, 
1818—38. 
Although only dealing with the European fauna and now antiquated and 
superseded in many parts, this work is still the foundation of the modern 
classification of Diptera. 
C. R. W. WIEDEMANN.—Aussereuropiische zweifliigelige Insecten. 
2 vols. Hamm, 1828-30. 
A continuation of Meigen’s work, and containing descriptions of many genera 
and species belonging to the North American fauna. 
J. MACQUART.—Diptéres exotiques nouveaux ou peu connus. 2 vols. 
in 5 parts and 5 supplements. Paris, 1838-55. 
Contains descriptions of many North American genera and species. 
J. KR. SCHINER.—Fauna Austriaca. Die Fliegen (Diptera). Nach der 
analytischen Methode bearbeitet, mit der Characteristik siimmt- 
licher europaischer Gattungen, der Beschreibung aller in Deutsch- 
land vorkommenden Arten und der Aufzihlung aller bisher be- 
schriebenen europdischen Arten. 2 vols., Wien, 186264. 
Although dealing with the European fauna, this work is very useful on ac- 
cou nt of the analytical tables of families and genera. 
H. LoEw AND C. R. OSTEN-SACKEN.—Monographs of the Diptera of 
North America. (Smithsonian Miscellaneous Collections.) 4 parts. 
Washington, Smithsonian Institution, 1862—72. 
The several monographs will be found enumerated under the respective 
families. 
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