Hypodermatic: of or concerning the hypodermic. Hypodermic: under the skin. Hypoglottis: the under surface of the tongue = hypoglottis. Hypoglottis: a sclerite inserted between rectum and labium in many Coleopteran. Hypognathous: having the mouth parts directed more or less vertically ventrad. Hypographous: shaded; applied to a fascia that becomes gradually darker. Hypomeron -a: in Coleopteran; the inflexed edge of the pronotum (pronotal hypomera); and the raised lower margin of the epipleural (elytral hypomera) (see epipleural) fold. Hypopharyngeal: relating to the hypopharynx. Hypopharyngeal sclerites: in bees, a pair of strap-like pieces along the hypopharynx to the mentum: see also epipharyngeal sclerites. Hypopharynx: a sensitive and sensory structure on the upper surface of labium that serves as an organ of taste, or true tongue. Hypopleura: in Diptera, the space over the middle and hind coxa, between the metapleura and pteropleura: the side of the metasternum: the mesepimeron of the mesothorax. Hypoptere: = tegula; q.v.. Hypopygium: the anus: more specifically the lower plate of the anal opening: in Diptera, the male sexual organs and terminal segments of abdomen = propygium. Hypostoma: in Diptera; that portion of the head included between antennae, eyes and mouth: in Hemiptera: the lower part of face. Hypotenuses: in Odonata; the simple or broken cross-vein between media 4, and cubitus 1, forming outer boundary of triangle. Hypotypes: includes specimens upon which supplementary descriptions are based: = apotypes. I Iceous or Icius: suffix; expresses a likeness or the possession of a character see aceus. Icotypes: typical specimens which serve for purposes of identification, but have not been used in literature. Idiotype: a specimen named by the author after comparison with the type, but not also a topotype. Ignitus: fire-red [vermilion]. Ileo-colon: the anterior portion of the hind-gut, extending from the mid-gut to the rectum, when not distinctly differentiated into ileum and colon. Ileum: the small intestine; begins at end of chylific ventricle at the point where malpighian tubules join, and extends to colon. Imaginal: pertaining to the adult or imago. Imaginal buds, cells, or discs: in forms with a complete metamorphosis are those embryonic cells around and from which the organs and appendages of the future imago develop. Imago: the adult or sexually developed insect. Imbricate: arranged or appearing like the scales on a fish or the shingles on a roof. Immaculate: destitute of spots or marks. Immarginate: without an elevated rim or margin. Immersed -us: inserted, imbedded or hidden in. Imponderable: that which cannot be weighed. Impregnate-ed: to make or made fertile or pregnant: fertilized. Impressed -us: a surface with shallow depressed areas or markings. Impubis: without hair. Inaequalis: unequal. Inarticulate: not jointed or segmented. Inaurate -us: golden yellow [pale cadmium yellow].