. Injurious insects of the orchard, vineyard, field, garden, conservatory, household, storehouse, domestic animals, etc., with remedies for their extermination . ychus telarius). CHAPTER LXXXVL The Red Scale. (Cal.) (Aspidiotus avrantii—Maskell.) Synonym.—Aspidiotus citrii—Comstock. Order, Hemipteka ; ^ i- -i ribub-orcier, Homoptera ;) - [A circular reddish scale insect, infesting the citrus trees,and has been found on grape vines and the foliage of walnuttrees.] The red scale (Fig. 128) infests some of the citrus groves ofSouthern California, and orange trees in Sacramento andMarysville. It h
. Injurious insects of the orchard, vineyard, field, garden, conservatory, household, storehouse, domestic animals, etc., with remedies for their extermination . ychus telarius). CHAPTER LXXXVL The Red Scale. (Cal.) (Aspidiotus avrantii—Maskell.) Synonym.—Aspidiotus citrii—Comstock. Order, Hemipteka ; ^ i- -i ribub-orcier, Homoptera ;) - [A circular reddish scale insect, infesting the citrus trees,and has been found on grape vines and the foliage of walnuttrees.] The red scale (Fig. 128) infests some of the citrus groves ofSouthern California, and orange trees in Sacramento andMarysville. It has also been found on grape vines and on thefoliage of walnut trees, but I do not think that any damageAvill be done to these plants by this pest. As the walnut shedsits foliage annually, the insects are likely to be destroyed;and those which I have examined on the grape vines in themonth of September, and which appeared to be in a healthy11 154 INSECTS INFESTING ORANGE TREES, ETC. condition, were dead and shrunken when I examined the vinesin the month of February following. It is generally conceded that this species is an importationfrom Fig. 128.—Red Scale; l,a twig infested by these scales; la,the male, highly magnified—colors, yellow and brown; 1&, thefemale scale, greatly enlarged—colors, gray, yellowish or brown ;Ic, the male scale greatly enlarged—color, same as the femalescale. NATURAL HISTORY. Female scale (Fig. 128, 16), nearly transparent, circular, ofa light-grayish color, and measures from one line to one and INSECTS INFESTING ORANGE TREES, ETC. 155 one quarter lines in diameter; exuvias or cast skin in center,yellowish; second larval skin easily distinguished. Male scale (Fig. 128, Ic) a little darker in color and smallerthan the female scale; form, elongated; exuvife nearest theanterior end. Eggs.—It is thought by some writers that the females ofthis species are viviparous. I have watched the female insectovipositing, and immediately e
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