The pattern or arrangement of setae.

A rigid, pointed projection of the cuticle. See also: Seta, Carina.

Openings for gas exchange.

Site of Special Scientific Interest. A UK conservation designation for areas of high ecological or geological value.

The period between moults. See also: Instar.

The ventral sclerite of an abdominal segment. See also: Tergite, Pleurite.

A vein branching from the node.

A flexible junction between sclerites.

The fused meso- and metathorax supporting wings and legs.

A conspicuous patch of colour near the end of the abdomen, especially in damselflies.