Family HeterothripidaeCretaceous (Cedar Lake amber) to present. Western Hemisphere and India. Antennae nine-segmented; ovipositor downturned; forewings narrow, surface with microtrichia; antennal sensors on intermediate segments as flat discs or protruding peglike cones.Family ThripidaeOligocene (Baltic amber) to present. Worldwide. Antennae 6- to
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