frontal tuft (ARTHRO: Insecta) In Hymenoptera, a group of elongate simple setae and fusiform scales arising at the interocular space and the adjacent portion of the vertex.
frontal vesicle (ARTHRO: Insecta) In Odonata, a protuberance between the compound eyes, bearing the ocelli.
frontal vitta (ARTHRO: Insecta) In Diptera, an area on the head between the antennae and the ocelli; the frontalia.
frontal wall (BRYO) An external wall supporting the oral wall wholly or partly.
frontoclypeal area (ARTHRO: Insecta) The front of the head, that is divided by the epistomal sulcus (or suture) into the frons above and the clypeus below.
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