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46 TEACHERS' MANUAL.
CHAPTER XIV.
Diptera.
Question.—Into how many sections are the insects of this
Order divided, and name them? Answer.—Two ; Long-horned
Flies and Short-horned Flies.
Q.—What are the prominent antennal characters by which
the Long-horned Flies can be distinguished? A.—They are
composed of four or more joints.
Q.—What are the prominent antennal characters by which
the Short-horned Flies can be distinguished? A.—The antennae
are short and are two or three jointed.
Long-horned Flies.
Q,—Into how many Families are the Long-horned Flies divided,
and name them? A.—Four ; Mosquitoes, Gall Gnats,
Crane Flies and Fleas.
Short-horned Flies.
Q.—Into how many Families are the Short-horned Flies divided,
and name them ? A.—Four ; Horse Flies, Syrphus
Flies, Bot Flies and House Flies.
NOTE.—The Robber Flies (Asilidce), the Forest Flies and Sheep Ticks (Hippoboscidce),
belong to Diptera.
The following questions may be given for the Families of
Diptera :
SECTION I. (Long-horned Flies.)
Q.—Describe the characters by which the are distinguished?
1.—Describe the mouth parts of the ?
2.—What are the habits of the larvae of the ?