EXPLANATIONS

OF

TERMS USED IN TEXT.

A.

A, as prefix of a word means wanting, without.

abbreviated, shortened, not extending to the extremity of a given part.abdomen, posterior part of the body (Fig. 21).aborted, imperfectly developed.abraded, scraped or rubbed off.

acuminate, becoming gradually narrower; tapering to a [point; a pointlengthened out.

acutely, sharp; sharply pointed.

adult, grownup; sexually mature.

adventitious, accidentally; casually acquired.

alary (ala, alatus), relating to wings or wing-like parts.

ampliate, enlarged; dilated. .

anal, situated at or near the anus.

analogue, differing as to structure but of similar function.annulus, annulation, annulate, a colored ring around a body.ante, a prefix meaning before.

antennae, two jointed sense-organs situated on the head; feelers (Fig. 21).

anterior, anteriorly, near the head; situated more to the front.

anus, the posterior opening of the alimentary canal.

apex, the terminal portion of any organ or part of the body.

aphis, plant-louse.

apical, apically, applied to a part rising at the tip of a'tbodv.

apodemata, apodema, plates of chitine supporting internal organs.

appressed, pressed closely against; fitting closely to.

approximate, near to; near together.

apterous, wingless.

arboreal, living on or among trees.

arcuate, arcuation, arched; bowed.

area, areola, areolate, wing-cells; cellules; the membraneous spaces betweenthe nervures.

articulated. divided into distinct joints.auditory organ, ear; hearing-organ (Fig. 37, 38).attingent, touching; coming in contact with.axillary, arising from the angles, as axillary vein.