1914] Melon Fly, Dacus cucurbitae. 207 
Fig. 26. Dried and shriveled pistillate bud still adhering to the pumpkin vine 
after the larve have bored out of the ovary. 
Fig. 27. Pistillate bud detaching from pumpkin vine after the larvze have bored 
out of the ovary. 
Fig. 28. Two anthers of pumpkin flowers; one anther has been partly devoured 
by the maggots. 
Fig. 29.. After the larve have destroyed the anthers, the pest devours the column 
of the stamens. 
Fig. 30. The maggots finally penetrate into the long peduncle of the staminate 
flowers and feed on the wall of the stalk. The flower often drops 
from its stalk due to decay caused by the larve. 
PLATE XXX. 
Figs. 31 and 32. String beans split open showing the melon fly larve feeding on 
the seeds and flesh of the pods. 
Fig. 33. After the seeds and flesh of the string beans have been devoured the 
inner surfaces of the pods turn black. 
Figs. 34 and 35. External appearance of the infested bean pods. 
Figs. 36 and 37. Melon fly pupae inside of pods. 
Figs. 38 and 39. Melon fly larve which have died while attempting to bore out 
of the string beans, probably due to the drying of the pod. 
Figs. 40 to 44. Dried and shriveled string beans after the melon fly larve have 
bored out. These bean pods do not drop to the ground but remain 
adhering to the plant. 
PLATE XXXI. 
Fig. 45. Channels in moistened sand made by melon flies after emerging from the 
puparia. The black areas in the channels represent flies which 
died in their attempt to burrow through the sand. 
Fig. 46. Egg of melon fly. 
Fig. 47. Recently hatched melon fly larva. 
Fig. 48. Melon fly larva after feeding one day. 
Fig. 49. Larva after feeding two days. 
Fig. 50. Larva after feeding three days. 
Fig. 51. Larva after feeding four days. 
Fig. 52. Mature melon fly larva after feeding four and one-half days. 
Fig. 53. Puparium of melon fly. 
BIBLIOGRAPHY. 
1. Clark, B. O., 1898. The Hawaiian. I, No. 27, p. 6. 
2. Compete, G., 1912. Mon. Bull. State Comm. Hort., Cal. I, No. 10, pp. 
709-730. 
3. Coquillett, D. W., 1899. Ent. News, X, No. 5, pp. 129-130. 
4. Ehrhorn, E. M., 1911. Hawaiian Forester and Agric. VII, No. 11, pp. 
336-338. 
5. Froggatt, W. W., 1910. Dep’t Agric. New South Wales, Farmers’ Bull. 
No. 24, pp. 1-56. 
6. Fuller, C., 1909-10. 7th. Gov. Ent., Dep’t Agric. Natal. p. 26. 
7. Howlett, F.M., 1912. Trans. Ent. Soc. London. pt. II, pp. 412-418. 
8. Illingworth, J. F., 1912. Cornell Univ. Agric. Exp. Sta. Bull. 324, pp. 126-188 
9. Marsh, H. O.,1910. Rept. Div. Ent. for 1910. Bd. Agric. and Forestry, 
Hawaii. pp. 152-159. 
10. Perkins, R. C. L., 1902. Rept. Gov. Ter. Hawaii. p. 36. 
11. Van Dine, D. L., 1907. Ann. Rept. Hawaii Agric. Exp. Sta. for 1907. U. S. 
Dep’t. Agric. Office Exp. Stas. pp. 30-35. 
