. The Coccidae of California; a descriptive list of the different scale insects found in and reported from California. Coccidae -- California. ;)4 CAUFDRNlA STATK COMMISSION OP^ IIORTICl'I-Tl'RE. inent, usually one pair to each segment, a rather deep incision just laterad of the lobe; anal opening about twice as distant from the base of the lobes as the lobes are long; spinnerets grouped about curious club-shaped organs. On .fJsculus calif arnica. Aspidiotus hederse Vail. (Oleander and Lemon Scale.) Scale of Female.—Flat, lightish or light gray in color, and with exuvia? central or nearly so;
. The Coccidae of California; a descriptive list of the different scale insects found in and reported from California. Coccidae -- California. ;)4 CAUFDRNlA STATK COMMISSION OP^ IIORTICl'I-Tl'RE. inent, usually one pair to each segment, a rather deep incision just laterad of the lobe; anal opening about twice as distant from the base of the lobes as the lobes are long; spinnerets grouped about curious club-shaped organs. On .fJsculus calif arnica. Aspidiotus hederse Vail. (Oleander and Lemon Scale.) Scale of Female.—Flat, lightish or light gray in color, and with exuvia? central or nearly so; exuviae dull orange-yellow; the first skin usually showing the segmentation distinctly, the second skin more or less covered with secretion, often appearing only as an orange-colored circle surrounding the first skin. Ventral scale a mere film applied to bark of plants. Diameter of fully formed scale, 2 mm. Female.—Body of adult nearly circular, with abdominal segments forming a pointed projection; light yellow in color, mottled with darker yellow; the last segment presents the following characters: The ante- rior lateral group of spinnerets con- sists of about 9, and the posterior laterals of about 7. There are three pairs of lobes; the first and seccmd are well developed, the third quite small. The plates are well devel- oped; they are long and usually fringed; there are two small ones between the median lobes; those of each side are as follows: Two be- tween the first and second lobes; three between second and third lobes; and usually seven laterad of the third lobe, of which usually four are fringed and three simple. The number of the last-named group varies from four to nine. There is on each surface of the segment a spine accompanying each lobe; one between the fourth and fifth plates laterad of third lobe, and one at. FIG. 26. AKpiiHotiis hederx (Oleander Scale). On branch of oleander, showing leaves thickly Please note that these images are extracted from
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishersacra, bookyear1906
