Shard: a chitinous sheath or elytron.
Sharp: with a pointed tip or thin edge; opposed to blunt.
Sheath of penis: in Odonata, a median, hood-like piece between the hamules, under which the penis is folded when not in use.
Shin: = tibia; q.v.
Short sector: in Odonata, = media 4 (Comst.).
Shoulder: loosely applied to an obtuse angulation; more generally to the humeral angle of fore wings or elytra: the anterior angles of thorax in Lepidoptera; the angles of prothorax in Heteroptera: the lateral angles of metazona of pronotum in Orthoptera.
Sialisterium: a salivary gland.
Side: the lateral margin of the body.
Side piece: in genitalia of male Culicids the main lateral part of the clasping organ or basal segment of clasp.
Sides of thorax: in Odonata, includes the pleura of meso- and meta- thorax, less the meso-episterna.