Drosophila_willistoni

male Drosophila willistoni

Modified from Plate XVI in The University of Texas Publication No. 4445: December 1, 1944

STUDIES IN THE GENETICS OF DROSOPHILA IV.
Papers dealing with the taxonomy, nutrition, cytology
and interspecific hybridization in Drosophila
Directed by J. T. Patterson
Professor of Zoology
The University of Texas