. An introduction to zoology, with directions for practical work (invertebrates). The insects which cause the accumulation of frothy substance on many plants known as " cuckoo-spit" or " frog-spit," are the Frog-hoppers which form the family Cercopidae of the Homo- ptera. The froth is given out by the little yellow and green, or or beak pressed against ^^^^^j^^ six-legged larvae who live within it, and only leave it on The full-grown insects have B- Fig. 217.—The Frog-hopper. 1, Dorsal view; JS, lateral view, c^ rostrum the body. _ \ becoming winged adults. earned the name
. An introduction to zoology, with directions for practical work (invertebrates). The insects which cause the accumulation of frothy substance on many plants known as " cuckoo-spit" or " frog-spit," are the Frog-hoppers which form the family Cercopidae of the Homo- ptera. The froth is given out by the little yellow and green, or or beak pressed against ^^^^^j^^ six-legged larvae who live within it, and only leave it on The full-grown insects have B- Fig. 217.—The Frog-hopper. 1, Dorsal view; JS, lateral view, c^ rostrum the body. _ \ becoming winged adults. earned the name of Frog-hopper by the surprisingly big leaps they are able to Family 3 : Coccidae (the Scale Insects) Scale Insects are minute, degenerate forms which live closely adhering to the bark, fruit, or leaves of a tree, usually hidden by a little scale—rather like one valve of a minute mussel shell—formed by an excretion from the body of the Fig. 218.—Scale Insects insect which shelters below it, as in on Apple Tree {Myti- the Mussel Scale of the apple tree (Fig. loj^pi^ P ^'^'^ covering one by a powdery mass, when the creatures ™ ™ "''^' are known as "; The full-grown insect is very degenerate, but the larva is more active, and does much ' This fungus, Dasyscypha calycina, causes little yellow discs, about ^Jjj of an iuch across, ou the larch 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 Lulham, Rosalie Blanche Jermaine. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1913
