114 



THE MICROSCOPE. 



Aug. 



eggs> are deposited in all parts of the apple, usually upon 

 the cheeks, sparingly near tlie calys and stem ends, and 

 more abundantly upon the pale or shaded side of the 

 fruit. The eggs are developed successively in the ovary 

 of the female, after the manner of the barn yard fowl, 

 and the season extends over a considerable time, each 

 female laying from three to four hundred eggs and the 

 time required to deposit an egg is about one half minute. 

 In confinement a female will live three weeks. 



By means of the sharp ovipositor a puncture 3 m.ra. 

 (.0133 in.) in diameter, is made through the skin of the 



apple. These punctures can be detected, by careful ob- 

 servation by the naked eye, but a pocket lens is necessary 

 to see them well. They appear as brownish specks not 

 readily distinguished from tlie rusty spots common on 

 apples. Under the glass tliey appear as circular or ob- 

 long openings, surrounded by a brownish border, some- 

 what shrunken by the shriveling of the tissues beneatli. 

 They may be numerous on the same apple. 



The eggs hatch in four or five days under favorable 

 conditions and the minute larv® (fig. C) begin at once to 



