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 Insect Morphology and SystematicsInsect Morphology and Systematics
II. Sub order : Ensifera
1.Tettigonidae : (Katydids, Long horned grasshoppers)
Antenna is long, slender as long as or longer than the body.
Tarsus is four segmented.
Ovipositor is sword like.
Auditory organs are found in foretibiae. In each foretibia a pair of tympanum is present.
The outer tympanum is larger than the inner.
Sound production is
alary type
. A thick region on the hind margin of the forewing
(
scraper
) is rubbed against a row of teeth on the stridulatory vein (
file
) present on the ventral side
of another forewing which throws the resonant area on the wing (
mirrors
) into vibrations to
produce sound.
Insect Morphology and Systematics
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