Quadrifarium: having four rows.
Quadrilateral: four-sided: formed or bounded by four lines: in Odonata, a space on the wings of Zygoptera bounded by the lower sector of arculus, the sub-median vein, a cross-vein between these two, and the lower part of arculus.
Queen: the actively reproducing female among worker insects.
Quiescent: not active: applied to the pupae in forms with complete metamorphosis.
Quiet: subdued: not conspicuous or contrasting in color or maculation.
Race: a variety of a species possessing constant characters which yet are not specific; usually occurring in a different faunal region from the type and may thus be geographical: nearly synonymous with subspecies.
Racemose: like a bunch of grapes: applied to ovaries when they form bunches or sacs.
Rachis: a ridge or keel dividing the spinning canal at base, in caterpillars; the shank of an antennal joint into which the lateral spines or other processes are inserted.
Radial: pertaining to the radius or radial vein.