

PLATE 1 



EGGS OF CERTAIN DROSOPHILIN^. 



1. Scaptomyza graminum. 5. Drosophila simulans. 



2. Chymomyza proenemis. 6. Drosophila quinaria. 



3. Drosophila affinis. 7. Drosophila transversa. 



4. Drosophila luelanogaster. 8. Drosophila funebris. 



