Part 71

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.

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].