. Bulletin of the Department of Agriculture. Agriculture; Agriculture. MEDITERRANEAN FRUIT FLY IN HAWAII. 55 period. During June when the mean temperature was ° F. two larvae completed their entire development in and days, respect- ively, but they were transferred daily to fresh pieces of ripe papaya and thus were surrounded by the best of condi- tions. However, other larvae equally well cared for and similarly fed and transferred did not reach maturity and pupate until , 12, and 14 days. Ordinarily larvae complete their devel- opment in from 6 to 10 days at an aver- age me
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. MEDITERRANEAN FRUIT FLY IN HAWAII. 55 period. During June when the mean temperature was ° F. two larvae completed their entire development in and days, respect- ively, but they were transferred daily to fresh pieces of ripe papaya and thus were surrounded by the best of condi- tions. However, other larvae equally well cared for and similarly fed and transferred did not reach maturity and pupate until , 12, and 14 days. Ordinarily larvae complete their devel- opment in from 6 to 10 days at an aver- age mean temperature of 76° to 79° F. During the cooler part of the year, when the average mean temperature is about ° F., larvae transferred daily to fresh ripe papaya did not be- come fully grown until 9, 10, and 14 days old, while at about the same tem- perature 18, 12, and 1 larvae required 10, 11, and 15 days for development in a green half-grown peach. At a mean temperature of about 79° to 71° F., 12, 14, 3, 1, and 1 larvae pupated 14, 16, 19, 22, and 26 days, respectively, after hatching. Larvae hatching during December 25 to. Fig. 11.—Anterior spiracles of larva of the Mediterranean fruit fly: a, Second-instar larva; 6, third-instar larva. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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