. Zoology : for students and general readers . Zoology. Fig. .337.—Spittle insect, its natural size. a, larva, enlarged ; Pig. 3,38.—Cochineal insect, mate ; female natural size and enlarged. The froth insect {Ptyelus lineatus, Fig. 337) abounds on grass in early summer. The cochineal insect [Coccus cacti) belongs to the CoccidcB, or bark-lice; the dried female is used as a dyestufE, and abounds in Central America. The plant-louse (Fig. 339, Aphis mali Fabr.) is provided with two tubes on the hind-body from which honey-dew. Fig. 339.—Apple Aphis. Natural size and enlarged. drops, which attract
. Zoology : for students and general readers . Zoology. Fig. .337.—Spittle insect, its natural size. a, larva, enlarged ; Pig. 3,38.—Cochineal insect, mate ; female natural size and enlarged. The froth insect {Ptyelus lineatus, Fig. 337) abounds on grass in early summer. The cochineal insect [Coccus cacti) belongs to the CoccidcB, or bark-lice; the dried female is used as a dyestufE, and abounds in Central America. The plant-louse (Fig. 339, Aphis mali Fabr.) is provided with two tubes on the hind-body from which honey-dew. Fig. 339.—Apple Aphis. Natural size and enlarged. drops, which attracts ants, wasps, etc. In summer the plant-lice reproduce asexually, and as there may be nine or ten generations, one virgin aphis may become the parent of millions of children and 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 Packard, A. S. (Alpheus Spring), 1839-1905. New York : Henry Holt
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1879
