. Elementary entomology. Entomology. of the genus Lccaniuvi and their near relatives, and are known as Lecaniums. They are usually of a brownish color, quite strongly convex (often ridged), and are soft and easily crushed, — hence the name. The upper surface of the female gradually hardens, and upon ma- FlG. 183. The hemispherical scale {Lecaniuni hemisphaericum Targ.) a, scales on olive (natural size); />, three female scales (considerably enlarged); c, female scale lifted from leaf, showing mass of eggs (enlarged). (After Marlatt, United States Department of Agriculture) eggs neath it. tu
. Elementary entomology. Entomology. of the genus Lccaniuvi and their near relatives, and are known as Lecaniums. They are usually of a brownish color, quite strongly convex (often ridged), and are soft and easily crushed, — hence the name. The upper surface of the female gradually hardens, and upon ma- FlG. 183. The hemispherical scale {Lecaniuni hemisphaericum Targ.) a, scales on olive (natural size); />, three female scales (considerably enlarged); c, female scale lifted from leaf, showing mass of eggs (enlarged). (After Marlatt, United States Department of Agriculture) eggs neath it. turity she dies and the old skin forms the scale which covers the laid be- The Lecaniums occur upon various greenhouse plants such as crotons, upon the peach and plum, and upon citrous fniits. The cottony maple scale is a species common on maple shade trees and gives off a mass of cottony wax in which the eggs are laid. The armored scales are much smaller, flat, circular,. 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 Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882; Metcalf Collection (North Carolina State University). NCRS. Boston, Ginn
Size: 972px × 2569px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912
