: toward the outside.

Extrude: to turn or force out.

Exude: to ooze or flow slowly through minute openings.

Exuvia -iae -ium: the cast skin of a larval insect: in Diaspinae the
larval skin when cast and incorporated in the scale.

Exuviate: to cast the skin: to moult.

Exuviation: the act of molting: the cast-off skin or exuvium.

Eyes: the organs of sight, composed of numerous facets, situated, one
on each side of the head: the term is properly applied to compound
eyes only but is sometimes used to designate also the simple eyes or
ocelli.

F

Face or Facies: the upper or outer surface of any part or appendage:
the front of the head between the compound eyes above the mouth to
the vertex; usually applied to insects in which the head is -vertical:
in bees extends between the eyes to the base of the antennae; in the
Hymenoptera generally the area between antenne and clypeus: in
flies the area between base of antennae, the oral margin, eyes and
cheeks.

Facet: a small face or surface: one of the parts, areas or lens-like
divisions of the compound eye.

Facial angle: the angle formed by the junction of the face and vertex.

Facial bristles: Diptera; a series on either side of the middle portion of
the face, above the vibrissae, along the facialia.

Facial carinae: applied to both the carinae of the frontal costa and the
accessory (lateral) carinae of the face; but usually restricted to the
accessory carinae in Orthoptera.

Facial depression: = antennal fovea, q.v.

Facialium -ia: Diptera; that portion of the face between the lower part
of the frontal fissure and the antennal fovea.

Facial quadrangle: in bees; the quadrangle bounded laterally by the
eyes, above by a line between their summits and below by a similar
line between their lowest points.

Facial ridges: Diptera; the elevated lateral borders of antennal grooves.

Facial tubercle: Diptera; a median convexity below middle of face.

Facies: the face: the general appearance or impression.

Falcate: sickle-shaped; convexly curved: a wing when deeply
excavated below the apex so as to leave the latter acute and a little
curved.

Falciform: curved like a sickle.

False legs: = spurious legs; = prolegs; q.v.

Family: a division of classification including a number of genera
agreeing in one or a set of characters and so closely related that they
are apparently descended from one stem: opinionative and indicated
by the termination idae.