A REVISION OF THE AMERICAN PARASITIC FLIES 

 BELONGING TO THE GENUS BELVOSIAfi^ 



By J. M. Aldrich, 



Associate Curator, Division of Insects, United States National Museum 



The present paper contains descriptions of 36 species and 2 varieties 

 of flies belonging to the genus Belvosia, of which 19 species and 2 

 varieties are new to science. 



It is based on the material in the United vStates National Musemn, 

 together with that in the American Museum of Natural History, the 

 University of Kansas, the Vienna Natural History Museum, and that 

 in the private collections of C. W. Johnson, Prof. Jas. S, Hine, and 

 Prof. A. L. Melander. Mr. C. H. Curran, in charge of the Diptera of 

 the Canadian National Collection, kindly furnished paratypes of two 

 of his species that I had not seen. I should especially mention the 

 generosity of Dr. F. Maidl, of the Vienna museum, who sent all the 

 material in that museum which had been studied] by Messrs. Brauer 

 and Bergenstamm. 



Genua BELVOSIA Robineau-Desvoidy 



Belvosia Robineau-Desvoidt, Myodaires, 1830, p. 103. — Osten Sacken, 

 Catalogue N. A. Diptera, 1878, p. 153. — Van der Wulp, Biologia, Dipt., 

 vol. 2, 1888, p. 29. — Williston, Insect Life, vol. 5, 1893, p. 238. — Brauer 

 and Bergenstamm, Zweifl. Kais. Mus., pt. 6, 1893, p. 238. — Adams, in 

 Williston's Manual, 1908, pp. 372, 373. — Townsend, Taxonomy Muse. 

 Flies, 1908, p. 103.— Curran, Bull. Brooklyn Ent. Soc, vol. 22, 1927, p. 150. 



Latreillia Robineau-Desvoidy, Myodaires, 1830, p. 104. — Brauer and 

 Bergenstamm, Zweifl. Kais. Mus., pt. 4, 1889, p. 97; pt. 6, 1893, pp. 123, 

 204. 



Willistonia Brauer and Bergenstamm, Zweifl. Kais. Mus., pt. 4, 1889, p. 

 97; pt. 5, 1891, pp. 349, 403; pt. 6, 1893, p. 123.— Townsend, Muscoid 

 Flies, 1908, p. 103. 



Latreillimyia Townsend, Muscoid Flies, 1908, p. 105. 



Goniomima Townsend, Muscoid Flies, 1908, p. 105. 



Triachora Townsend, Muscoid Flies, 1908, p. 106. 



Belvosiomima Townsend, Proc. U. S. Nat. Mus., vol. 49, 1915, p. 413. 



Belvosiopsis Townsend, Revista Museu Paulista, vol. 15, 1926, p. 248. 



The sole original species of Belvosia was hicinda, new, from Carolina 

 and the Antilles. LatreiUia contained two American species, Musca 



No. 2729.-PROCEEDINQS U. S. NATIONAL MUSEUM. VOL. 73. ART. 8 



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