From ZooTerms (Dictionary of Invertebrate Zoology)
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notaulix (noun; plural -lices,; Greek notos, back; Latin aulix, furrow): (Arthropoda: Insecta) One of a pair of grooves on the mesoscutum, from the front margin to one side of the midline and extending backward; divides the mesoscutum into 3 parts: a median lobe between the notaulices and a lateral lobe on each side (parapsides).