I>LATE 4J9. 



Fig. 1.— Egg-cluster of Diotrwu aurlcilia (C S. 1787) x30. 



Fig. 2.— Eggs of DiutrtL'U venosatu ( < 24). 



Fig. 3.^Annual life-cycle of Diutraa veiio.satti. Fig. 4.— Annual life-cycle of Hiatraa aiiHvilia. 



