Crossword clues for Immature insect. 4 letters:PUPAImmature insect.NYMPHImmature insectLARVAImmature insectLARVAEImmature insectsIMAGOImmature insect.PUPAEImmature insectsLARVALOf immature insectsPUPASImmature insects.LARVALImmature, as an insect.