Cobweb Spiders (Theridiidae)
摘要
Cobweb spiders, or Theridiidae, with just over 2500 species, are the fourth largest spider family. They are usually small to medium-sized species that can occur worldwide in all terrestrial habitats. The common name cobweb spider refers to their web type. Occasionally, they are also called tangle-web spiders, but this is a rather vague term (who knows exactly what this means) because there are many theridiids that build other types of webs or none at all.