44O MAINE AGRICULTURAL EXPERIMENT STATION. IQI2. 



Maine although no specimens have been seen by the Station 

 Entomologists from any locality within the State. It occurs in 

 many states in the Union as well as in New Brunswick, Ontario, 

 Nova Scotia and Prince Edward Island, so its presence in 

 Maine would not be surprising. 



Its food plants are apple, pear, cherry, quince, crab, peach, 

 black walnut, mountain ash, elm, currant, hawthorn, etc. 



Remedies. Same as for the Oyster shell scale. 



C.furfura 



FIG. 479. FIG. 480. 



Chionaspis lintncri Comstock. 



LINTNER'S SCALE. (FIGS. 480 AND 486.) 

 Comstock. Cornell Exp. Sta. II, p. 103, 1883. 



Cooley. Special Bui. Mass. Agr. College, p. 22, 1899. 



"Scale of female. Length 2.5-3.2 mm. (J inch). Decidedly broadened 

 posteriorly, somewhat flattened, usually thin and flexible ; dull dirty 

 white or snow-white in color. Exuviae I mm. long, yellowish-brown. 

 * * * * The second exuvia is .8 mm. long. 



"Female. Median lobes obscurely pointed and faintly serrate. Second^ 

 and third pairs with the inner lobule larger than the outer ; faintly 

 serrate. The gland-spines are long and slender and are arranged as 

 follows: i, 1-2, 2, 1-3, 6-9. Second row of dorsal gland-orifices rep- 

 resented by the anterior group consisting of 3-6 orifices. Third row 

 with 4-6 orifices in the anterior and 5-7 in the posterior group. Fourth 

 row with 6-8 orifices in the anterior and 8-10 in the posterior group. 

 Median group of circumgenital gland-orifices, 11-19; anterior laterals, 

 25-42; posterior laterals, 19-28. 



"Scale of male. Length .8-1 mm. Parallel-sided, distinctly tri-cari- 

 nate. Exuvia yellow or almost colorless, occupying about two-fifths of 

 the length of the scale." (Cooley 1899). 



This scale has been recorded from alder, willow, birch, dog-; 

 wood, shadbush. It occurs in eastern United States and 

 Canada, having been recorded from New York, Massachusetts, 

 Maine, Prince Edward Island, and Quebec. The species was 

 found on the gray birch at Orono, Me., in August 1910. 



