112 



THE NORTH AMERICAN SPECIES OF DROSOPHILA. 



South Carolina — continued. 



Scaptomyza adusta. 



S. graminum. 



Drosophila affinis. 



D. immigrans. 



D. niclanogaster. 



D. putrida. 



D. replcta. 



D. tripunctata. 

 South Dakota: 



Drosophila funebris. 



D. melanogaster. 

 Tennessee : 



Pseudophortica obesa. 



Leucophenga varia. 



Scaptomyza graminum. 



Drosophila affinis. 



D. hydei. 



D. melanogaster. 



D. putrida. 



D. repleta. 



D. sigmoides. 



D. transversa. 



D. virihs ? 

 Texas: 



Aulacigaster leucopeza. 



Pseudophortica obesa. 



Leucophenga maculosa. 



Chymomyza amoena. 



Scaptomyza adusta. 



S. graminum. 



Drosopliila affinis. 



D. guttifera. 



D. hydei. 



D. melanogaster. 



D. muUeri. 



D. quinaria ? 



D. repleta. 



D. sigmoides. 



Vermont : 



Curtonotum helva. 



Stegana coleoptrata. 



S. humeralis. 



Chymomyza amoena. 



Scaptomyza adusta. 



S. graminum. 



Drosophila funebris. 



D. inversa. 



D. putrida. 



D. quinaria. 

 Virginia : 



Aulacigaster leucopeza. 



Curtonotum helva. 



Stegana coleoptrata. 



S. huraerahs. 



Pseudophortica obesa. 



Chymomyza amoena. 



C. procnemis. 

 Scaptomyza adusta. 

 S. graminum. 

 Drosophila affinis. 



D. busckii. 

 D. funebris. 

 D. guttifera. 

 D. melanica. 



D. melanogaster. 



D. pseudomelanica. 



D. putrida. 



D. quinaria. 



D. repleta. 



D. robusta. 



D. sigmoides. 



D. simulans. 



D. sulcata. 



D. transversa. 



D. tripunctata. 



Washington : 



Chymomyza caudatula. 



Scaptomyza graminum. 



S. terminalis. 



Drosophila funebris. 



D. inversa. 



D. melanderi. 



D. melanogaster. 



D. quinaria ? 

 West Virginia: 



Leucophenga varia. 



Scaptomyza graminum. 



Drosophila busckii. 



D. putrida. 

 Wisconsin : 



Stegana coleoptrata. 



Drosophila funebris. 



D. melanogaster. 

 Wyoming : 



Drosophila melanogaster. 

 Alaska : 



Scaptomyza terminalis. 

 Alberta: 



Drosophila funebris. 

 British Columbia: 



Scaptomyza graminum. 



S. terminahs. 



Drosophila funebris. 

 Nova Scotia: 



Drosophila melanogaster. 

 Ontario : 



Stegana humeralis. 



Drosophila sulcata. 

 Quebec : 



Scaptomyza terminalis. 



Drosophila funebris. 



D. melanogaster. 



D. ordinaria. 



D. quinaria. 



NEOTROPICAL REGION. 



There are two endemic Neotropical genera — Blcesoch(Etophora and 

 Cladochceta. The region is also characterized by the large number of 

 species of the genus Curtonotum, which is apparently rare m all other 

 parts of the world. The 5 cosmopolitan species of Drosophila and the 

 6 species previously mentioned as occurring also in the Nearctic 

 {Chymomyza procnemis, Drosophila hydei, D. mulleri, D. simulans, 

 Leucophenga maculosa, and Pseudiastata nebulosa) are the only Neo- 

 tropical species also known to occur elsewhere. Adams has recorded 

 Drosophila willistoni (as D. pallida Williston) from Rhodesia; but in 

 view of the large number of closely similar species in this group, this 

 identification can not be accepted as final. This leaves 71 of the 82 

 recognized species as endemic. 



