196 PROCEEDINGS OF THE NATIONAL MUSEUH. vol.48. 



The distribution of the various genera in the Asphondyliariae is 

 also interesting as indicating the original home of the group, the 

 thoroughness of .distribution and subsequent specialization after dis- 

 semination became impossible. The following list shows 18 genera, 

 10 of which occur in the Tropical Americas, namely, Southern North 

 America, Central America, Northern South America, and the West 

 Indies, South America alone being credited with 7 genera. It is this 

 region which is the home of the synthetic Feltomyia, a genus present- 

 ing the antennal characters of Schizomyia, while the ovipositor and 

 terminal clasp segment of the male show an affinity with Cincticornia. 

 A somewhat similar combination obtains in the Brazilian Proas- 

 pliondylia with the pectinate terminal clasp segment of Cincticornia 

 and a subaciculate ovipositor, suggesting a relationship with Asphon- 

 dylia. Africa has 5 genera, Europe, Asia, and North America 4 each, 

 while Australia is credited with but 2. Relatively the faunae of 

 Europe and North America have been much more carefully explored 

 than those of Africa, Asia, South America, and in particular, Aus- 

 tralia. Systematic collecting in the Tropical and Subtropical sec- 

 tions of the globe would give rich returns in this group. 



The following is a tabulation of the geographical distribution of the 

 various genera: 



Family ASPHONDYLIARIAE. 



Distribution of the genera. 



ScMzomyia, Europe, Northern Africa, East Indies, West Indies, 

 North and South America. 



Kiefferia, Europe. 



Tetraspondylia, Mozambique. 



Parasphondylia, East Africa. 



XenaspJiondylia, West Indies. 



Asphondylia, Europe, Asia, Africa, North and South America, 

 Australia. 



BruggmannieUa, Brazil. 



ProaspJwndylia, Brazil. 



Bruggmannia, Brazil. 



OxaspJwndylia, Guatemala. 



EouardieUa, Northern Africa. 



Zalepidota, Brazil. 



PolystepTia, Europe. 



Cincticornia, North America. 



Feltomyia, Mexico and West Indies. 



Eocincticornia, Australia. 



Daplinepliila, Bengal. 



Ozobia, Brazil. 



