Antemedial line: = t. a. line, q.v.
Antemedian: Diptera; applied to leg-bristles situated before the middle.
Antenna -ae: two jointed, sensory organs, borne, one on each side of the head, commonly termed horns or feelers.
Antenna-cleaner: a fringed excavation on the interior base of the 1st segment of the anterior tarsi of Hymenoptera which, when covered by the movable process from the end of the tibia, forms an opening through which the antennae may be drawn: similar structures are on the fore tibiae of Carabid beetles: tarsal claws are also used by various insects to clean antennae.
Antennal appendage: in Mallophaga, a projecting process of the 1st or 3rd segment in the male.
Antennal formula: in Coccidae; made by enumerating the antennal joints in the order of their length, beginning with the longest and bracketing together those of the same length.
Antennal fossa -w: grooves or cavities in which antennae are located or concealed: = a. grooves: antennary fossa.
Antennal fovea: Diptera; a groove or grooves in the middle of the face as though for the lodgment of the antennae; bounded on the sides by the facial ridges.
Antennal foveolae: Orthoptera; the pits between frontal costa and lateral carinae, in which the antennae are inserted.
Antennal grooves: see antennal fossa.