RM
Balance organ of a fly, SEM
Balance organ of a fly. Coloured scanning electron micrograph (SEM) of the surface of the balance organ (haltere) of an unidentified fly (Order Diptera). Only Dipteran flies, known as the 'true' flies, have halteres. They are modified and reduced hindwings that help the insect sense its orientation and remain correctly balanced in flight. Magnification unknown.
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