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TEACHERS' MANUAL. 17
Q.—What are the appendages of the lower jaws and lower
lip termed ? A.—Palpi (or feelers).
Q.—Name the other parts of the mouth not mentioned
above ? A.—Tongue, chin, and a second pair of appendages
attached to the lower lip.
Q.—On what figures are shown the mouth parts of insects
which masticate their food ? A.—Figs. Nos. 89 and 103.
NOTE,—The pupils should be required to give the common name of each part,
as in {fig. 103) labrum, upper lip; mandibles, upper jaws ; maxillae, lower jaws;
labium., under lip; mentum, chin. In referring to the palpi, or feelers, appendages
of the lower jaws and lower lip, the terminating pi is plural, and pus singular,
as maxillary palpus (sing.); labial palpi (plural).
Q.—Name the figures which represent the upper jaw of an
insect which masticates its food ; also, those which represent
the lower jaw, upper lip, and lower lip ? A.—Upper jaw,
Nos. 89, 103, 107, 108, 109 and 110. Lower jaw, Nos. 89, 103,
111 and 113. Upper lip, Nos. 89, 103, 104 and 105. Lower
lip, Nos. 89, 103 and 106.
Q.—Name the figures that represent the feelers (palpi) and
other appendages of the lower jaws and lower lip ? A.—Nos.
89, 103, 106 and 111.
NOTE.—The above question may be divided as thought best by the teacher.
Q.—Of what forms are the mouth parts of insects, which
obtain their nourishment by suction ? A.—In some insects the
mouth parts are formed as an elongated beak, or proboscis,
and are fitted for piercing the substance on which they feed ;
in Butterflies and Moths it is usually as long as the body, and
coiled beneath the head, when not in use.
Q.—What class of sucking insects have their mouth parts
fitted for piercing ? A.—Bugs, Horse-flies, etc.
Q.—Name an insect with mouth fitted for lapping ?
A.—House-fly.
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