HEMIPTERA - PENTATOMIDAE, COREIDAE, PYRRHOCORIDAE, LYGAEIDAE
:Hemi - half; ptera - wing
Head is opisthognathous.
Mouthparts are piercing and sucking type. Two pairs of bristle like stylets which are the
modified mandibles and maxillae are present. Stylets rest in the grooved labium or rostrum.
Both labial palps and maxillary palps are atrophied.
Mesothorax is represented dorsally by scutellum.
Forewings are either uniformly thickened throughout or basally coriaceous and distally
Cerci are always absent.
Metamorphosis usually gradual; rarely complete.
Alimentary canal is suitably modified to handle liquid food. (filter chamber)
Salivary glands are universally present,
Extra-oral digestion is apparently widespread.
Abdominal ganglia fused with thoracic ganglia.
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