The Classification of the Genus Drosophila with a description of nine new species; New Species in the Quinaria Group of the Subgenus Drosophila; Description of New Species of the Subgenera Hirtodrosophila and Drosophila
Austin: University of Texas, 1942. First Printing. Wraps. 8vo, wraps, very good, light wear and soil to covers, especially rear cover, contents very good. 109 pp.




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