12 
BULLETIN 643, U. S. DEPARTMENT OF AGRICULTURE. 
withered, growing tip. In this case the eggs were laid just beyond 
the leaf and flower stalks. 
TThen the eggs are laid in the older though still very young and 
succulent watermelon vine, the larvae, on hatching, tunnel their way 
Fig. 11. — Melon-fly eggs in blooms of pumpkin. Two buds of the male bloom sectioned 
to show the eggs deposited through the corolla. (Authors' illustration.) 
through the vine, eating out the center and causing it to wilt and die. 
Figure 10 shows a yine sectioned to expose the five well-grown larvae 
which have killed it beyond the base of the leaf in the upper left- 
hand corner of the illustration. The serious setback to vine develop- 
