- hemicephalous
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adj. [Gr. hemisys, half; kephale, head](ARTHROPODA: Insecta)Referring to dipteran larvae with reduced head capsule retractable within the thorax; an intermediate condition between eucephalous and acephalous; hemicephalic.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.