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Insect Morphology and SystematicsInsect Morphology and Systematics
IMPORTANT FAMILIES OF HOMOPTERA
1. CICADIDAE (Cicadas)
Males have sound producing organs at the base of the abdomen. Sound producing organs
consist of a pair of large plates, the opercula covering the cavity containing structures
producing sound. In the anterior part of the cavity benath each operculum is a yellowish
membrane. A shinning mirror is located in the posterior part of the cavity. In the lateral wall
of the cavity is an oval shaped ribbed structure, the tymbal. These are vibrated by strong
muscles to produce sound. Each species has a characteristic song. Tympanum is present
in both in sexes.
Wings are transparent.
Eggs are inserted into the tree twigs by the female.
Nymphs drop to the ground, enter the soil and feed on root sap.
Anterior femora of the nymph is thickened with spines beneath and are suited for digging
the soil.
Life cycle of periodical cicada lasts for 13-17 years.
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