Auxiliary: additional, or supplementing. Auxiliary vein: in Diptera (Will.), = subcosta (Comst.). Axillae: two small, subtriangular sclerites at the lateral basal angles of the meso-scutellum in Proctytripidae. Axillary: placed in the crotch or angle of origin of two bodies; arising from the angle of ramification. Axillary area: see anal area. Axillary calli: see calli axillary. Axillary cell: in Diptera (Will.), = 2d anal (Comst.). Axillary excision: = a. incision, q.v. Axillary incision: Diptera; an incision on inner margin of wing, near base, which separates the alula from the main part. Axillary lobe: the sclerite covering the base of the wing in Diptera; see also alula and posterior lobe. Axillary vein: one or two longitudinal veins toward the inner margin from the anal vein (Ephemeridae); a group of several (10-20) radiate veins that occupy the anal field in Orthoptera. Axis: a small process at base of elytron, upon which it turns. Azure -eus: clear sky-blue [cobalt blue]. Azygos: unpaired; a structure without a fellow; sometimes applied to an unpaired oviduct specifically the enlarged portion of the vagina at the junction of the oviducts and thus = uterus. B Baccate -us: berry-like: applied to bladder-like ovaries from the surface of which the short ovarian tubes arise. Back: the dorsum or upper surface. Baculiform: rod or staff-like. Badius: liver-brown; clearer and lighter than castaneus [dragon's blood]. Baenomere: a leg-bearing (thoracic) segment. Baenopoda: the thoracic legs. Baenosome: the thorax. Balancers: see halteres. Bald: without hair or other surface vestiture: see bare. Band: a transverse marking broader than a line. Bar: a short, straight band of equal width. Barb: a spine armed with teeth pointing backward. Barbate: furnished with barbs; hair with spines or spurs directed backward. Barbated: bearded; in antennae with tufts or fascicles of hair or short bristles on each side of each joint; = brush-like: on the abdomen, with flat tufts at the sides or tip. Barbule: a small barb, beard or filiform appendage. Bare: without clothing of any kind: see bald. Basad: in the direction of or toward the base. Basal: at or pertaining to the base or point of attachment to or nearest the main body. Basal area: in wings: that space nearest the point where they are attached to the body: on the metanotum of Hymenoptera, the anterior of the three median cells or areas = 1st median area. Basal cell: Diptera; st (Will.), = radial 2 (Comst.); 2d (Will.), = media (Comst.); Trichoptera; one, two or three cells enclosed by the branches that form-the post-costal or anal vein: Odonata; an elongate cell between radius and cubitus, just before the arculus. Basalis: the principal mandibular sclerite, when sclerites are distinguishable, to which all other parts are jointed; corresponds to the stipes in the maxilla.