Scale: a general term to distinguish Coccidae: specifically the puparium of a Diaspid, comprising exuviae and excreted matter: the waxy covering of a male Lecaniid: in Diptera = alula: q.v.
Scales: broad flattened hairs, forming the wing vestiture of Lepidoptera, and present in various other insects.
Scalloped: an edge marked by segments of circles without intervening angles.
Scalpellus: a lancet-like piercing structure, as in some Diptera.
Scalpriform: chisel-shaped.
Scansorial: said of feet, when formed for climbing on hair.
Scape: the long basal joint of a geniculate antenna in Coleoptera; usually applied to the three basal joints, as in Hymenoptera.
Scaphiform: boat-shaped.
Scaphium: a ventral process of the 10th abdominal segment in male Lepidoptera below the uncus.
Scapula: in Lepidoptera the shoulder tippets, patagia or axillae; q.v.: in Hymenoptera, the side pieces of the mesonotum; also, a trochanter of the fore-leg; in Proctotrupidae the lateral lobes on each side of the parapsidal furrow.