GEOGRAPHICAL DISTRIBUTION. 1138 
The distribution of the 13 Neotropical.genera within the region is 
as follows: 
Aulacigaster: ‘‘ West Indies.” 
Blesochetophora: Cape Horn. 
Chymomyza: Florida, Cuba, and Panama to Matto Grosso. 
Cladocheta: Porto Rico to Cuba, Florida, and Mexico. 
Curtonotum: Mexico to Peru, Brazil, and British Guiana. 
Drosophila: Florida and Bahamas to Argentina, Chile, and Mexico. 
Leucophenga: Florida and Cuba to Paraguay, Peru, and Honduras. 
Mycodrosophila: Isle of Pines to Trinidad. 
Pseudiastata: Panama. 
Scaptomyza: Florida and Cuba to Patagonia, Peru, and Mexico. 
Stegana: Cuba to St. Vincent, Peru, and Mexico. 
Zaprionus: Panama. i 
Zygothrica: Panama to Peru and Brazil. 
The West Indian islands of Cuba and St. Vincent and the region of 
the Panama Canal have been fairly thoroughly explored, but our 
knowledge of the rest of the region is very incomplete. Mexico and 
the whole South American continent especially need investigation. 
The following list shows species known from various subdivisions of 
the region. South America has been treated as a single unit only be- 
cause our knowledge of it is so slight. Some Neotropical species will be 
found on the Florida list, given in the section on the Nearctic region. 
Drosophila fusca Coquillett (Porto Rico), D. mexicana Macquart 
(Mexico), and the South American species D. atra Walker, D. gigantea 
Thomson, D. spherocera Thomson, and D. tarsalis Walker have all 
been omitted as being either unrecognizable or probably not members 
of the genus Drosophila. 
Antigua: Costa Rica—continued. Cuba—continued. 
Drosophila caribbea. D. willistoni. D. poeyi. 
Bahamas: Cuba: D. ramsdeni. 
Drosophila willistoni. Cladocheta nebulosa. D. repleta. 
D. melanogaster. Stegana sp. D. saltans. 
D. hydei. Leucophenga bimaculata. D. similis. 
Barbados: L. frontalis. D. splendida luteipes. 
Drosophila melanogaster. L. maculosa. D. torrei. 
D. nebulosa. L. obscuripennis. D. willistoni. 
D. similis. Chymomyza procnemis. Dominica: 
British Honduras: Scaptomyza vittata. Drosophila cardini. 
Drosophila, caribbea. Drosophila bromeliz. D. caribbea. 
D. hydei. D. busckii. D. melanogaster. 
D. melanogaster. D. calloptera. D. repleta. 
Costa Rica: PD: cardini. @untomale: 
Curtonotum sp. D: caribbea. Drosophila superba. 
Stegana sp. D. dubia. 1S Ae 
Scaptomyza vittata. D. earlei. ey ie 1 
Drosophila alfari. D. flexa. irl ala a 
D. cardini. D. flore. Chymomyza EBA 
D. caribbea. D. hydei. Bee NES OU) seat 
Mion. Bitte. Drosophila cardini. 
D. immigrans. D. melanogaster. D. caribbea. 
D. lutzii. D. metallica. D. nebulosa. 
D. melanogaster. D. metzii. D. prognatha. 
D. simulans. D. mulleri. D. repleta. 
D. tristani. D. nebulosa. D. willistoni. 
