Description: This is a small orbweaver. Females range from 5 to 7.5 millimetres, males from 3 to 4 millimetres. The cephalothorax is dark brown. The abdomen is white with various brown patterns, and has a distinctive lobe extending from its posterior which accounts for part of its common name. The legs are pale brown. The vertical web is often as high as eye level, and includes many spokes and spirals that continue right to the web’s centre.
Habitat: Shrubby meadows, open woodlands, parklands and gardens.
Range: Widespread across Canada
Seasonality: Spring through fall
Trivia: This species (and a similar species – Cyclosa turbinata) spin a web that often includes a “trashline,” a vertical line of debris including old, silk-wrapped prey and bits of vegetation. Sometimes, however, the web is unadorned or may just have a silken “stabilimentum” like that of the garden spiders.