willistoni Sturtevant

Drosophila willistoni Sturtevant, 1916: 327 . Johnson 1924: 90 [records]; Curran 1932: 355 [records]; Linsley & Usinger 1966: 169 [checklist]; Delgado Zúñiga 1975: 38 [chromosomal analysis].

Drosophila (Sophophora) willistoni: Brake & Bächli 2008: 119 [catalogue].

Drosophila (Sophophora) willistoni quechua Ayala, 1973: 276 . Carson et al. 1983: 241 [records]; Brake & Bächli 2008: 119 [as syn. of D. willistoni].

Distribution. Introduced. Nearctic, Neotropical; Galápagos: Baltra, Isabela, San Cristóbal, Santa Cruz.

Remarks. Adults of this species were found in highland zones, primarily in the agricultural zone (Carson et al. 1983).