. The Coccidae of California; a descriptive list of the different scale insects found in and reported from California. Coccidae -- California. THE COCCIDAE OP CALIFORNIA. 27 7-jointed, joint 7 longest; sometimes joint 1 is next longest, but joint 2 is often longer than joint 1, and in many cases they are sub- equal; joint 6 usually next, although joint 3 may be longer than 6; joint 4 next, often subequal with 5; sometimes 3 shortest, sometimes 5; 3 and 5 often subequal. In fact, the sequence of the joints is quite variable, as is shown in the following antennal formulae: 721(36)(45). 7(12)6(45
. The Coccidae of California; a descriptive list of the different scale insects found in and reported from California. Coccidae -- California. THE COCCIDAE OP CALIFORNIA. 27 7-jointed, joint 7 longest; sometimes joint 1 is next longest, but joint 2 is often longer than joint 1, and in many cases they are sub- equal; joint 6 usually next, although joint 3 may be longer than 6; joint 4 next, often subequal with 5; sometimes 3 shortest, sometimes 5; 3 and 5 often subequal. In fact, the sequence of the joints is quite variable, as is shown in the following antennal formulae: 721(36)(45). 7(12)6(45)3. 71264(53). 7(12)64(53). Joint 1 is stouter than any of the others. Each joint with hairs, joint 7 with several stout hairs. Legs light brown, large and stout; each joint furnished with one or more rather long bristles. Femur, 80X50a">inmc,aino^ (lohomv m .,,1. sc de). 'â On Grape. terior end are ridges, and the lines that separate them are darker than the other parts. The eggs are laid in the cottony sac; they are white when first laid, but change to a yellowish tinge before hatching. They are oval in form. The larva is yellowish white. At one time this species was very troublesome, but the internal para- sites Coccophagus lecani and Encyrtus flavus work on this pest most effectively in the larval form, and the Rhizohius ventralis clean up the egg sacs of those that escape the attack of the parasites in the larval form and mature. The other species of Pulvinaria found in California are of no economic 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 Carnes, Edward K; California. State Horticultural Commission. Sacramento, W. W. Shannon
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