. The black scale. Scale insects. c^fe. Fig. 21.—Antennae and anal lobes. 1. Saissetia oleae Bern. 2. Lecanium pruinosum Coq. 3. Coccus hesperidum Linn. 4. Lecanium corni Bouche. The Frosted Scale. (Lecanium pruinosum Coq.) This scale is very similar to L. corni and frequently occurs with it as well as with the black. It is usually considerably larger than corni and is covered with pruinose, hence the name. In southern California it not infrequently occurs on the English walnut. Comys fusca has also been reared from this scale. Lecanium sp. This scale occurs very commonly on the Christmas berr
. The black scale. Scale insects. c^fe. Fig. 21.—Antennae and anal lobes. 1. Saissetia oleae Bern. 2. Lecanium pruinosum Coq. 3. Coccus hesperidum Linn. 4. Lecanium corni Bouche. The Frosted Scale. (Lecanium pruinosum Coq.) This scale is very similar to L. corni and frequently occurs with it as well as with the black. It is usually considerably larger than corni and is covered with pruinose, hence the name. In southern California it not infrequently occurs on the English walnut. Comys fusca has also been reared from this scale. Lecanium sp. This scale occurs very commonly on the Christmas berry Heteromeles. It was at first mistaken for the Hemispherical scale, but typical speci- mens appear much larger and slightly different in shape. Upon drying they are also inclined to shrivel, as indicated in the figure. It is very. 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 Quayle, H. J. (Henry Josef), 1876-; Rust, E. W. (Everett Winder), 1884-. Berkeley, Cal. : Agricultural Experiment Station
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscalein, bookyear1911
