Many of the members of this group are nocturnal, spending the daylight hours in the sac, whereas others are active in daylight or darkness and live mainly in th

Based mainly on the spider collections in the Canadian National Collection of Insects, Arachnids and Nematodes at Ottawa.

Orb-weaving spiders spin the wheel-shaped webs often seen on dewy mornings in meadows and hedges, or on the walls and the eaves of buildings. This manual provid