. Comparative zoology, structural and systematic : for use in schools and colleges. Zoology; Anatomy, Comparative; Physiology, Comparative. HOW ANIMALS EAT. 50. the Bee tribe, we have a transi- tion between the biting and the sucking Insects—the mandibles "supply the place of trowels, spades, pickaxes, saws, scissors, and knives," while the maxilte are developed into a sheath to enclose the long, slender, hairy tongue which laps up the sweets of flowers. In the suctorial But- terfly, the lips, mandibles, and palpi are reduced to rudiments, while the maxilte are the only useful oral o
. Comparative zoology, structural and systematic : for use in schools and colleges. Zoology; Anatomy, Comparative; Physiology, Comparative. HOW ANIMALS EAT. 50. the Bee tribe, we have a transi- tion between the biting and the sucking Insects—the mandibles "supply the place of trowels, spades, pickaxes, saws, scissors, and knives," while the maxilte are developed into a sheath to enclose the long, slender, hairy tongue which laps up the sweets of flowers. In the suctorial But- terfly, the lips, mandibles, and palpi are reduced to rudiments, while the maxilte are the only useful oral organs. These are excessively lengthened into a proboscis, their edges locking by means of minute teeth, so as to form a central canal, through which the liquid food is pumped up into the mouth. Seen un- der the microscope, the proboscis is made up of innumer- able rings interlaced with spiral muscular fibres. The proboscis of the Fly is a modified lower lip; that of the Bugs and Mosquitos, fitted both for piercing and suction, is formed by the union of four bristles, which are the mandibles and maxilte strangely al- tered, and encased in the labium when not Fig. 23.—Proboscis of a Butterfly. in USC Fig. 22.—Head of a Wild Bee (in- thophora retusa), front view: a, compound eyes; b, clypeus; c, three simple eyes; d, antennae; labrnm : /, mandibles; i, maxillae; h, maxillary palpi; ly palpifer; j, labial palpi; m, paraglossae; k, 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 Orton, James, 1830-1877; Birge, E. A. (Edward Asahel), 1851-1950. New York : Harper & Bros.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1883
