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Ctenizidae. Ctenizidae is a small family of mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation, and silk. They may be called trapdoor spiders, as are other, similar species, such as those of the families Liphistiidae, Barychelidae, and Cyrtaucheniidae, and some species in the Idiopidae and Nemesiidae.
The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3,000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to their creation of trapdoors over their burrows. Other prominent groups include Australian funnel web ...
Actinopodidae, a family otherwise known as 'mouse-spiders', in South America and Australia. Antrodiaetidae, a family of 'folding trapdoor spiders' from the United States and Japan. Barychelidae, a family of 'brush-footed trapdoor spiders' with pantropical distribution. Ctenizidae, a family of ' cork -lid trapdoor spiders' in tropical and ...
Spider behavior refers to the range of behaviors and activities performed by spiders. Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom . They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms [ 1 ] which is reflected in their ...
The Joro is part of a group of spiders known as orb weavers for their highly organized, wheel-shaped webs. Joro females have colorful yellow, blue and red markings on their bodies and can measure ...
Description. Sydney brown trapdoors are medium-to-large in size; the female is around 35 mm in length, while the male is usually around 20 mm and of a slimmer build. They are chocolate brown coloured and the males have distinct boxing glove-shaped palps, which are the appendages at the front of the head between the first pair of legs.
Aliatypus is a genus of North American folding trapdoor spiders first described by C. P. Smith in 1908. [2] They resemble members of Ctenizidae in morphology and behavior, but this is due to convergent evolution rather than direct relation. [3] They are most closely related to members of Antrodiaetus, which build collar doors.
The spiders in the genus can grow to have a leg span of 13 to 18 cm (5 to 7 in). Their body length ranges from 17 to 48 mm (43 ⁄ 64 to 1 + 57 ⁄ 64 in). [4] [5] While some other araneomorph spiders have a longer leg span, the largest Phoneutria species have the longest body and the greatest body weight in this group. [6]