THE MEDITERRANEAN" FRUIT FLY, 3 
ESTABLISHMENT AND SPREAD IN HAWAII. 
The presence of the Mediterranean fruit fly in the Hawaiian Islands 
was first discovered at Honolulu on June 21, 1910, and by the fall 
of that year the pest was well established in the Punchbowl district 
of the city. By October, 1911, it was found on the Island of Kauai, 
and by January, 1912, on the Island of Molokai and in the Kohala 
district of the Island of Hawaii (see fig. 3). During March, 1912, 
Fig. 2.— Longitudinal section of grapefruit showing destruction of pulp caused by larva? of Mediterranean 
fruit fly. (Original.) 
the Kona district was found infested, and by May of the same year 
the fruit fly was discovered for the first time on the Island of Maui. 
The towns of Naalehu and Hilea of the Kau district of Hawaii were 
infested by March, 1913, and by the early months of 1914 infesta- 
tions were found in the Hilo and the Hammakua districts of the same 
island. By July, 1914, or four years after its first discovery at Hon- 
lulu, the pest had spread to every important island of the Territory 
of Hawaii and to-day is well established in every village and wild 
guava scrub. 
