"theridiosoma gemmosum" constructs a small orb web. the radii do not run directly to a central hub as with other orb webs, but are first joined into groups of two or three before combining to meet in the middle. a single thread runs from the centre to a nearby support, and is held by the spider. while the spider is holding this thread the tension pulls the web into a conical shape, described as "like an umbrella turned inside out". when a prey item hits the web, the spider releases the tension, causing the prey to become more enmeshed.