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What is the largest known size of a thrips?
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thrips
Western flower thrips (Frankliniella occidentalis).
The largest known thrips are approximately 15 mm (0.6 inch) in length. While most species in the order Thysanoptera are much smaller—typically ranging from 1.5 to 3 mm—their minute size allows them to inhabit very small spaces, such as the interior of tiny flowers or narrow cracks in plant stems and bark.1