. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 16.—Honey-bee. A, head of honey-bee show- ing mouih-parts extend- ed; B, maxillae and la- bium enlarged for the students of insects to recognize the group to which any particular insect belongs by a study of its mouth-parts alone. Bees and wasps have one type; the two-winged flies, as the mosquitoe, horse-fly, and house-fly, another; the true b
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 16.—Honey-bee. A, head of honey-bee show- ing mouih-parts extend- ed; B, maxillae and la- bium enlarged for the students of insects to recognize the group to which any particular insect belongs by a study of its mouth-parts alone. Bees and wasps have one type; the two-winged flies, as the mosquitoe, horse-fly, and house-fly, another; the true bugs, as the cicada, stink-bug, and squash- bug, another, and the moths and butterflies still another. Bees and wasps.—The mouth-parts of these insects are usually stated to be of the sucking type; they are in reality a combination of the two. Mandibles, Fig. 16 md, with sharp cut- ting edges are usually present and fitted for biting, the upper lip is small and , the maxillae and labium. Fig. 16 A, have been greatly elongated and find their greatest de- velopment in the honey-bee. If the maxillae, Fig. 16 mx, of the honey-bee are compared with those of the locust, it is seen that the lacinia is wanting and the maxillary palpus. Fig. 16 mp, is reduced to a mere tubercle. The greatest modification is found in the labium; the glossa. Fig. 16 g, in the locust a mere rudiment, is longer than any other part, while the paraglossae, large flaps in the locust, are mere rudiments completely concealed by the base of the labial palpi, which like the glossa have been greatly elongated The maxillae and labial palpi have been hollowed out on one side, and when closely appressed to the glossa form a tube for taking up liquids. True bugs.—The mouth-parts of the true bugs are so different from those of all other insects that there cannot be said to be any resemblance what- soever. When the head is examined from the side, Fig. 17, a slender tube is seen extending from the apex of
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