. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . •arrx. M the Black Scale (Fig. 294), the Filbert Scale (Fig. 320), andthe Soft Orange Scale (Fig. 321). SCALE [NSECTS. 123 Sub-family III. (Coccinx.) Genus Keemes (Targioni—Tozzetti). These insects have the body perfectly globular, or with aslight incision for insertion on the twig or branch. On anexternal examination no trace of antennae, legs, or even mouth. parts are to be observed, and the insect presents precisely theappearance of a ga
. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . •arrx. M the Black Scale (Fig. 294), the Filbert Scale (Fig. 320), andthe Soft Orange Scale (Fig. 321). SCALE [NSECTS. 123 Sub-family III. (Coccinx.) Genus Keemes (Targioni—Tozzetti). These insects have the body perfectly globular, or with aslight incision for insertion on the twig or branch. On anexternal examination no trace of antennae, legs, or even mouth. parts are to be observed, and the insect presents precisely theappearance of a gall. Chiefly found on Oak trees (Fig. 322). Genus Rhizococcus (Comstock). Antennas of larvae and of the adult female seven jointed; 124 NATURAL HISTORY OF INSECTS. ano-genital ring with eight hairs; tarsi of both male andfemale each with four digitules ; margin of body of young andof female in all stages, fringed with tubular spinnerets, whichare covered with a waxy excretion. Adult male with a singleocellus behind each eye, and a pair of bristles on each side ofthe penultimate abdominal segment, each pair supporting along white filament excreted by numerous pores at its fully developed female makes a dense sac of waxy matter,within which the eggs are laid, and the shriveled body of theinsect remains. The full-grown male larva makes a similarsac within which it undergoes its metamorphosis. Example—the Norfolk Island Pine Scale. Genus Dactylopius. The antennae of the females are six jointed in th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectinsects, bookyear1883
