Sub-family I. CONOPHAGINÆ (2 genera, 13 species). Confined to tropical South America, from Brazil and Bolivia to Guiana and Columbia.
Sub-family II. TÆNIOPTERINÆ (19 genera, 76 species). This group ranges from Patagonia and the Falkland Islands to the northern United States; yet it is almost wholly South American, only 2 genera and 4 species passing north of Panama, and none inhabiting the West Indian islands. _Empidias_ has 3 species in North America, while _Tænioptera_, _Cnipolegus_, _Muscisaxicola_, and _Centrites_, range south to Patagonia.
Sub-family III. PLATYRHYNICHINÆ (16 genera, 60 species). This sub-family is wholly Neotropical and mostly South American, only 7 of the genera passing Panama and but 3 reaching Mexico, while there are none in the West Indian islands. Only 3 genera extend south to the temperate sub-region, and one of these, _Anæretes_, has a species in Juan Fernandez.
Sub-family IV. ELAINEINÆ (17 genera, 91 species). This sub-family is more exclusively tropical, only two genera extending south as far as Chili and La Plata, while none enter the Nearctic region. No less than 10 of the genera pass north of Panama, and one of these, _Elainea_, which ranges from Chili to Costa Rica has several species in the West Indian islands. About one fourth of the species of this sub-family are found north of Panama.
Sub-family V. TYRANNINÆ (17 genera, 89 species). This sub-family is that which is best represented in the Nearctic region, where 6 genera and 24 species occur. _Milvulus_ reaches Texas; _Tyrannus_ and _Myiarchus_ range over all the United States; _Sayornis_, the Eastern States and California; _Contopus_ extends to Canada; _Empidonax_ ranges all over North America; and _Pyrocephalus_ reaches the Gila Valley as well as the Galapagos Islands. No less than 5 genera of this sub-family occur in the West Indian islands.
{ 292}FAMILY 39_a_.--OXYRHAMPHIDÆ. (1 Genus, 2 Species.)
GENERAL DISTRIBUTION. __________________________________/\__________________________________ / \ NEOTROPICAL| NEARCTIC |PALÆARCTIC | ETHIOPIAN | ORIENTAL | AUSTRALIAN SUB-REGIONS|SUB-REGIONS|SUB-REGIONS|SUB-REGIONS|SUB-REGIONS|SUB-REGIONS. -----------+-----------+-----------+-----------+-----------+------------ | | | | | -- 2. 3 -- |-- -- -- --|-- -- -- --|-- -- -- --|-- -- -- --|-- -- -- -- | | | | |