Antepectus: the lower surface of the prothorax. Antepenultimate: the last but two. Anterior: in front; before; in Dip., that face of the leg which is visible from the front when the leg is laterally extended and bristles on that face are anterior. Anterior branch of third vein, in Diptera (Will.), = radius 4 (Comst.). Anterior field: Orthoptera; of tegmina, see costal field. Anterior intercalary vein: Diptera; = media 2 (Comst.); of Loew = discoidal vein. Anterior lamina: Odonata; the anterior sternal border of abdominal segment 2, modified to form the front margin of the genital pocket. Anterior lobe: Orthoptera; see lobes. Anterior squama: = antisquama; q.v. Anterior stigmatal tubercle: on thoracic and abdominal segment of caterpillars; varies from substigmatal to stigmatal anterior; sometimes united to IV: it is V of the abdominal series, IV of the thorax (Dyar). Anterior trapezoidal tubercle: on thoracic and abdominal segment of caterpillars addorsal, anterior, always present, rarely united with II: it is I of the abdominal series, la of the thorax (Dyar). Antero: to the front; anteriorly. Antero-dorsal: Diptera; applied to leg bristles at the meeting of anterior and dorsal face. Antero-ventral: Diptera; applied to leg bristles at the meeting of anterior and ventral face. Anthobian: feeding on flowers; applied to certain lamellicorn Coleoptera in which the labium extends beyond the mentum. Anthophila: Hymenoptera; species in which the basal joint of the hind tarsus is dilated and pubescent; the bees. Anthracine -us: coal black; black with a bluish tinge. Anti: over against; opposite; contrary: (prefix). Anticus: frontal; belonging to or directed toward the front. Antigeny: opposition or antagonism of the sexes; embracing all forms of secondary sexual diversity. Antipodal costal spaces: Odonata; the cells between costa and subcosta, from the base to the modus; = antecubitals. Antisquama: Diptera; the upper of the two which moves with the wings; = antitegula; see also squama. Antitegula: see antisquama. Antlia: the spiral tongue or haustellum of Lepidoptera. Antliata: insects with a sucking mouth; originally applied to Lepidoptera and Diptera, later and more specifically to Diptera. Antrorse -sum: directed toward the front. Anus: the end of the digestive tract, through which the food remnants are passed: the posterior part of the individual: specifically, in Coccidae, a more or less circular opening on the dorsal surface of the pygidium, varying in location as regards the circumgenital gland orifices: = anal orifice. Aorta: the anterior, narrow part of the heart, opening into the head. Apex: that part of any joint or segment opposite the base by which it is attached; that point of a wing furthest removed from base or at the end of the costal area. Aphaniptera: indistinctly winged; see Siphonaptera. Aphideine: see aphidilutein.