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Insect Morphology and SystematicsInsect Morphology and SystematicsTHYSANOPTERA-THRIPIDAE
THYSANOPTERA
Synonyms
:
Physopoda
Etymology
:
Thysano - fringe; ptera - wings
Common name
:
Thrips.
Characters
They are minute, slender, soft bodied insects.
Mouthparts are rasping and sucking. Mouth cone is formed by the labrum and labium
together with basal segments of maxillae. There are three stylets derived from two maxillae
and left mandibles. Right mandible is absent. Hence mouthparts are asymmetrical.
Wings are either absent or long, narrow and fringed with hairs which increase the surface
area. They are weak fliers and passive flight in wind is common.
Tarsus is with one or two segments. At the apex of each tarsus a protrusible vesicle is
present.
Abdomen is often pointed. An appendicular ovipositor may be present or absent.
Nymphal stage is followed by prepupal and pupal stages which are analogous to the pupae
of endopterygote insects.
Classification:
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