PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



SMITHSONIAN INSTITUTION 

 U. S. NATIONAL MUSEUM 



Vol. 105 Washington ; 1955 No. 3355 



A REVIEW OF THE NEW WORLD FLIES OF THE GENUS 

 CONOPS AND ALLIES (DIPTERA: CONOPIDAE) 



By Sidney Camras 



The present study is based mainly on a fine collection of New World 

 Conopinae that had been accumulated by R. C Shannon and even- 

 tually acquired by the U. S. National Museum (USNM). Most 

 of the specimens had been collected by Shannon himself at Maracaju, 

 Mato Grosso, Brazil. He had been actively studying this material, 

 and many manuscript names for new species are attached; but he 

 never published on this group. Wherever possible I have used his 

 names for the new species. 



The last study of the Neotropical members of this group was by 

 Krober (1939, Ann. Mag. Nat. Hist., ser. 11, vol. 4, pp. 454-468). 

 In this work Krober referred many species for the first time to Physo- 

 conops from Conops; but many species were not then available to 

 him and their position could not be determined. Aczel (1950, 

 Acta Zool. Lnioana, vol. 9, pp. 49-61) reviewed the Neotropical 

 members of the family and assigned a few more species; and Parsons 

 (1948, Ann. Ent. Soc. America, vol. 41, pp. 226-230), reviewing 

 the Nearctic Conopidae, removed those species formerly in Conops 

 to Physoconops. In this paper I have been able to locate most of the 

 others, but the position of a few must still remain in doubt. 



Early in the present study several structural characters were 

 found for grouping related species. These have proved so useful 



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