The term 'Little Wrigglers' is a collective term for three different types of small, wriggling creatures. ELVERS (6 letters) are juvenile eels that migrate from the sea to freshwater rivers and streams. LARVAE (6 letters) are the immature form of insects, such as butterflies and moths, which undergo metamorphosis to become adults. Inchworms (9 letters) are the LARVAE of moths in the family Geometridae, which have a unique looping gait.