The classification of the genus Drosophila With descriptions of nine new species - Sturtevant, Alfred H. 1891-1970; Spencer, Warren P.; Patterson, J. T.; Wheeler, Marshall R. (Univ. of Texas, 1942)
Beigef.1.: Spencer, Warren P.: New species in the quinaria group of the subgenus Drosophila. Beigef.2.: Patterson, J. T.: Description of new species of the subgenera Hirtodrosophila and Drosophila. Wheeler, Marshall R.: Description of new species of the subgenera Hirtodrosophila and Drosophila