Part 145

Supra-alar bristles: in Diptera, are situated, one on the post-alar callus, one on the alar frenum, the third on the edge of the supra-alar depression.

Supra-alar cavity: = supra-alar groove.

Supra-alar depression: in Diptera = supra-alar groove.

Supra-alar groove: in Hymenoptera, a groove or depression just above the base of wings: in Diptera, a groove on the meso-thorax just above the root of the wings.

Supra-anal: situated above the anus.

Supra-anal hook: in male of most Lepidoptera, a curved hook attached to the plate covering the genital cavity: = uncus.

Supra-anal plate: a triangular sclerite covering the anal cavity above; present in many insects, sometimes in one sex only, often in both: see anal operculum.

Supra-cerebral: applied to that pair of salivary glands situated above the brain in bees.

Supra-clypeal mark: in bees; a patch of light color above the clypeus.

Supra-clypeus: = post-clypeus; q.v.: = nasus.

Supra-Oesophageal: situated above the oesophagus: applied to two large ovoid ganglia so situated, and connected by a short, thick commissure; - the brain.

Supra-orbital: situated above the eye.

Supra-spinal: above the spine or nerve cord: applied to a cord or band of connective tissue lying above the central nervous system in adult Lepidoptera also to a sinus or vessel acting as a ventral heart.

Supra-spiracular line: in caterpillars, margins the spiracles superiorly.

Supra-stigmatal line: = supra-spiracular lines.

Supra-triangular cross-veins: in Odonata, cross the supra-triangular space.

Supra-triangular space: in Anisoptera, an area just above the triangle, occupying nearly the same position as the quadrilateral of Zygoptera: hyper-trigonal space.

Suranal: = supra-anal.

Suranal plate: the middle dorsal plate attached to the l0th abdominal segment of the male grasshoppers, above the anal opening: a supra- anal tergite of a caterpillar.

Sursum: directed upwardly.

Suspensi: the chrysalids of butterflies that are suspended by the tail only: see succincti.

Suspensoria: are those muscles or ligaments that hold the viscera and other internal structures in place.

Sustentors: the two posterior projections of a butterfly chrysalis.

Suture: a seam or impressed line indicating the division of distinct parts of body wall: the line of junction of elytra in Coleoptera.

Suturiform: an articulation soldered together so that only a slight impressed line is visible.

Swarming: the concerted departure from a hive of a large number of worker bees, accompanied by a queen; this forming the nucleus of a new colony.

Swimmerets: gill or plate-like structures in the aquatic larvae of some Neuroptera, serving as oars or organs of locomotion.

Swimming paddles: terminal appendages of mosquito pupae.