Alulet: Diptera: the lobe at basal posterior part of wing; = alar appendage; posterior lobe: and has been used as = alula. Alutaceous: rather pale leather brown [burnt sienna]: covered with minute cracks, like the human skin. Alveolate: furnished with cells: deeply pitted. Alveolus: a cell, like that of a honeycomb. Amber: a transparent, clear, pale yellowish brown; of the color of amber [a mixture of pale cadmium yellow and a little burnt umber]. Ambient vein: Diptera; the costal vein when it extends beyond the apex and practically margins the wing. Ambrosia: bee-bread: the food cultures of certain Scolytid beetles. Ambulatoria: that series of Orthoptera in which the legs are fitted for walking only; Phasmids. Ambulatorial: fitted for walking or making progress on the surface. Ambulatorial setae: specialized hairs or bristles, situated on the ventral segments of the abdomen of some Coleoptera. Ambulatory: moves by walking; formed for walking. Ametabola -ous: insects without obvious metamorphoses, in which the larvae usually resemble the adult and the pupae are active. Ametabolion: an insect that has no distinct metamorphoses. Amethystine -us: bright blue with a reddish admixture; clear like an amethyst [between mauve and lilac]. Amnion: the inner of the two membranes enveloping the embryo. Amnion cavity: a tube-like insinking from the ventral plate of the embryo, extending cephalad. Amnion fold: the extensions of the amnion which close the mouth of the amnion cavity in the embryo. Amnios: the first cast skin of the larva when a moult occurs almost immediately after emergence from the egg. Amoebiform: having the appearance or properties of an amoeba. Amoeboid: applied to movements similar to those of an amoeba. Amphibiotica: those pseudoneuropterous insects whose larvae are aquatic but whose imagos are aerial; stone-flies; May-flies; dragonflies. Amphimixis: the mingling of the germ plasm of two individuals. Amphiodont: applied to those forms of male Lucanids bearing mandibles of medium size, between teleodont and priodont; =mesodont. Amphipneustic: applied to larvae which have the spiracles confined to the anterior and terminal segments. Ample: broad; large; sufficient in size. Amplected: when the head is received into a concavity of the prothorax; e.g. Hister. Ampliate -us: moderately dilated. Amplificatus: dilated; enlarged. Ampulla: Orthoptera; an extensile sac between head and prothorax used by the young in escaping from ooetheca, and later, in molting: Heteroptera; a blister-like enlargement at the middle of the anterior margin of the pro-thorax. Ampulla-like: flask-shaped; applied to a vascular sac at base of antennae which aids in the blood circulation of head and its appendages. Amygdaliform: almond-shaped. Anabolic: the constructive change from food material to animal tissue: see katabolic.