Ancipital: with two opposite edges or angles.
Androconia: specialized, usually small scales of peculiar form, found localized on some male butterflies.
Androgynous: uniting the characters of both sexes.
Aneurose: a wing without veins except near costa.
Angle: of tegmina, "is the longitudinal ridge formed along the interno-median by the sudden flexure from the horizontal to the vertical portion when closed."
Angular area: Hym.; the posterior of the three areas on the metanotum between the lateral and pleural carinae; = 3rd pleural area.
Angulate: forming an angle; when two margins meet in an angle.
Angustatus: narrowed; narrowly drawn out.
Anisoptera: that division of the Odonata in which the hind wings are wider, especially at base, than the front wings.
Annectent: applied to connecting or intermediate forms.
Annelet or annellus: Hym.; small ring-joints between scape and funicle.
Annulate: ringed or marked with colored bands.
Annulet: a small or narrow ring or annulus.
Annuliform: in the form of rings or segments.
Annulus: a ring encircling a joint, segment, spot or mark; sometimes applied to the inner ring encircling the mouth opening.
Annulus antennalis: the ring sclerite of the head into which the basal segment of the antennae is inserted; = antennal sclerite.
Anomalous: unusual; departing widely from the usual type.
Anoplura: wingless species without metamorphosis, habits epizoötic, thoracic segments similarly developed: a composite aggregation which includes both the biting and sucking lice.
Ante-alar sinus: Odonata; a grooved area extending transversely immediately in front of the base of each front wing.
Ante-clypeus: Odonata; the lower of the two divisions of the clypeus; the inferior half of the clypeus whenever there is any apparent line of demarcation: = clypeus-anterior; infra-clypeus; rhinarium; second clypeus.
Ante-coxal piece: Coleoptera; that portion of the metasternum lying in front of the posterior coxae, often passing between them and meeting the abdomen of mandible, is the lateral sclerite of the clypeus; - one on each side.
Ante-cubital: see ante-nodal, cross veins and spaces.
Ante-furca: an internal forked process from the prosternum, to which muscles are attached.