corypha
From ZooTerms (Dictionary of Invertebrate Zoology)
corypha (noun; plural coryphae; Greek koryphe, top): (Arthropoda: Insecta) That region of certain scarabaeoid larvae, between the epipharynx and the clithra, sometimes bearing setae; often merged with the acropariae into a common apical region when the clithra are absent.
