PEATE SI 

EGGS OF CERTAIN DROSOPHILIN. 
1. Seaptomyza graminum. 5. Drosophila simulans. 
2. Chymomyza procnemis. 6. Drosophila quinaria. 
3. Drosophila affinis. 7. Drosophila transversa. 
4. Drosophila melanogaster. 8. Drosophila funebris. 
