Insects injurious to fruits . t. No. 253.—The Circular Scale. Aspidiotus Jicus Riley. This is known as the red scale of Florida. In Fig. 407the scales are shown of the natural size on the leaves of anorange-tree; a, the scale of the female; 6, that of the male;c, the young larva; e and/, different stages in the formationof the scale; all these are highly magnified. Thus far it hasbeen found only in the orange-groves of Florida. It mul-tiplies with great rapidity, and infests indiscriminately thelimbs, leaves, and fruit. The scale of the female {a) is circular, and varies froma light to a dark
Insects injurious to fruits . t. No. 253.—The Circular Scale. Aspidiotus Jicus Riley. This is known as the red scale of Florida. In Fig. 407the scales are shown of the natural size on the leaves of anorange-tree; a, the scale of the female; 6, that of the male;c, the young larva; e and/, different stages in the formationof the scale; all these are highly magnified. Thus far it hasbeen found only in the orange-groves of Florida. It mul-tiplies with great rapidity, and infests indiscriminately thelimbs, leaves, and fruit. The scale of the female {a) is circular, and varies froma light to a dark reddish-brown color, with a gray margin;that of the male {b) is about one-fourth the size of the femalescale, and of a dark reddish brown, with a white centre, andis prolonged into a thin flap, of a grayish color. INSECTS INJURIOUS TO THE ORANGE. 397 The eggs are pale yellow, and the newly-hatched larvae,shown at c in the figure, are broadly oval in outline, and areeach provided with six legs, a pair of antennae, and a beak. for suction. They appear as small specks, scarcely visible totlie unaided eye; at first they are quite active, but, havingselected a location, soon fix themselves permanently to onespot. In a short time they secrete over their bodies fine 398 INSECTS INJURIOUS TO THE ORANGE. threads of wax, which are cottony in appearance. Soon asmall, white, convex scale takes the place of this cottonycoating, which is depressed in the centre. (See d, Fig. 407.)The scales gradually increase in size, and as they approachmaturity there is secreted on the female scale a mass ofcottony threads, which increases in quantity until it some- Fio. 408.
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