Theridiid is an adjective that specifically refers to the family Theridiidae, which is a diverse group of spiders commonly known as cobweb spiders. This family of spiders is found worldwide and comprises numerous species.
The term "theridiid" can be used to describe various characteristics and features associated with this family of spiders. These spiders are generally small to medium-sized, ranging from a few millimeters to around one centimeter in length. They typically have round or oval-shaped abdomens and long, spindly legs.
One notable characteristic of theridiid spiders is their ability to build intricate, irregular, and tangled cobwebs. These cobwebs are often utilized for capturing prey, primarily consisting of small insects. Hypersensitive and specialized sensory organs on the spider's legs help detect vibrations on the web surface caused by struggling prey.
Theridiid spiders are known for their venomous nature, although their venom is generally not harmful to humans. They typically inject venom into their prey, immobilizing and liquefying their insides before sucking out the resulting nutrient-rich fluids.
Due to their ability to adapt to a variety of habitats, theridiid spiders can be found in diverse environments, including forests, grasslands, and human dwellings. Some species are known to establish their webs in corners, crevices, or under objects where they are less likely to be disturbed.
Overall, the term "theridiid" pertains to the characteristics, habits, and classification of spiders belonging to the family Theridiidae.
