ORDER - ORTHOPTERA FAMILY
– ACRIDIDAE
ORTHOPTERA
Synonyms:
Saltatoria, Saltatoptera
Etymology:
Ortno - straight; ptera-wings.
Common names:
Grasshoppers, Locust, Katydid, Cricket, Mole cricket
Characters
They are medium to large sized insects.
Antenna is filiform.
Mouthparts are mandibulate.
Prothorax is large. Pronotum is curved, ventrally covering the pleural region.
Hindlegs are saltatorial
Forewings are leathery, thickened and known as tegmina.
They are capable of bending without breaking.
Hindwings are membranous with large anal area. They are folded by longitudinal pleats
between veins and kept beneath the tegmina.
Cerci are short and unsegmented.
Ovipositor is well developed in female.
Metamorphosis is gradual. In many Orthopterans the newly hatched frist instar nymphs are
covered by loose cuticle and are called pronymphs. Wing pads of nymphs undergo reversal
during development.
Specialized stridulatory (sound-producing) and auditory (hearing) organs are present.
Classification
This order is sub divided into two suborders, viz.,
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