THE OYSTER-SHELI, SCALE AND THE SCURFY SCALE. 3 
curved shapes. The scale of the male in shape and color resembles 
that of the female, but is smaller and possesses at the posterior 
extremity a small hinge or flap which permits the exit of the adult 
male. 
If during winter or early spring one of the female scales be removed, 
numerous small, oval, white eggs varying in number from 40 to 100 will 
be revealed, and at the anterior 
portioncan be seen the dead and 
shriveled body of the female. 
In Canada and the Northern 
States there is thought to be 
but one full brood annually, 
whereas in the Middle and 
Southern States the species is 
double brooded. 
The following records froii 
literature and from the Bureau 
of Entomology will indicate the 
time in the spring of hatching 
of the eggs of this insect, in 
various localities: This time 
will of course vary with the 
season, but in general, as long 
ago stated by Dr. Mygatt in 
Illinois, will for any locality be 
shortly after the time of the fall- 
ing of the blossoms of the apple. 
Ontario: Eggs hatch about first week 
of June (Jarvis). 
New York: Eggs hatch latter part of 
May to early June (Felt). 
New Hampshire: Eggs hatch in late 
May to early June (Sanderson). 
Vermont: Eggs hatch in late June 
(Stewart). 
Maine: Eggs hatch about middle of 
June or later, depending upon the 
season (Hitchings). 
Michigan: In specimens received June 18, 1909, from Stittsville, Mich., nearly all 
eggs had hatched (Sasscer). 
Minnesota: In specimens received May 24, 1909, from Lamoille, Minn., eggs were 
hatching in numbers when received (Sasscer). 
Indiana; In specimens received from Elwood, May 14, 1909, eges were hatthing in 
numbers when received (Sasscer). 
Ohio: Eggs hatch in late May to early June (Gossard). 
Second-brood eggs were found under many scales August 22, and a few young crawl- 
ing at Cleveland (Quaintance). 
lia, 2.—The oyster-shell scale ( Lepidosaphes ulmi). 
Enlarged. (Authors’ illustration.) 
