Tangleweb Spiders

Theridion zonulatum

Theridion zonulatum is a species within the genus Theridion, part of the family Theridiidae, commonly known as cobweb spiders or comb-footed spiders. Members of this family are known for their tangled web structures and a distinctive comb-like set of bristles on their fourth pair of legs, which they use to wrap prey with silk. Theridion zonulatum, like other Theridion species, is likely small and exhibits varied coloration and patterns across its body, which can help in camouflage among leaves and debris where it may build its web. These spiders have a rounded abdomen and relatively short legs compared to spiders in other families.






















Theridion zonulatum

Other Information


Theridion zonulatum is venomous, as are all spiders, using its venom to subdue prey caught in its web. The venom of most Theridion species is not harmful to humans beyond causing mild, localized symptoms such as pain, swelling, or itching.

A Danger to Humans?

Theridion zonulatum poses minimal danger to humans. These spiders are not aggressive towards humans and tend to bite only if directly provoked or threatened. Bites are rare and not considered medically significant.

Population Status

Specific data on the population size of Theridion zonulatum is not widely documented. However, the genus Theridion is known to adapt to a variety of environments, suggesting potentially stable populations where conditions are favorable.

Life Span:
The lifespan of Theridion spiders can vary but typically spans about a year, allowing for a cycle of mating, egg-laying, and the emergence of new spiders within a single season.

Weight and Length:
Individuals in the Theridion genus are generally small, with body lengths often not exceeding a few millimeters. Specific weight data is rarely noted due to their small size.

Theridion zonulatum’s distribution may include a variety of habitats, from forests to gardens and human structures, wherever it can find suitable locations to construct its web.

Habits and Lifestyle:
These spiders are sedentary, spending most of their time in their webs waiting for prey to become ensnared. Their webs are typically irregular and tangled, built among leaves, in corners, or under objects.

Diet and Nutrition:
Theridion zonulatum feeds on small insects and other arthropods caught in its web. The diet consists mainly of flying insects that blunder into the sticky silk strands.

Mating Habits:
Mating behavior involves careful approach by the male, who must signal his intentions to the female to avoid being mistaken for prey. Theridion spiders often exhibit complex courtship rituals that can include vibrations and tactile signals sent through the web.