Theraphosidae

Belongs within: Avicularoidea.Contains: Oligoxystre, Avicularia, Chilobrachys, Selenocosmia. The Theraphosidae, tarantulas, are a pantropical group of sometimes very large mygalomorph spiders that inhabit silken burrows or retreats. In members of the South American subfamilies Theraphosinae and Aviculariinae, the abdomen bears urticating hairs that are used in defense (Jocqué & Dippenaar-Schoeman 2007). The Indo-Australian Selenocosmiinae possess stridulatory… Continue reading Theraphosidae

Hexathelidae

Belongs within: Mygalomorphae. The Hexathelidae, funnel web spiders, are a group of medium-sized to large spiders that live in tube or funnel webs under rocks or in crevices (Jocqué & Dippenaar-Schoeman 2007). Characters (from Jocqué & Dippenaar-Schoeman 2007): Medium-sized to large mygalomorph spiders; cephalic region raised or low; eight eyes; labium provided with numerous cuspules;… Continue reading Hexathelidae

Crassitarsae

Belongs within: Mygalomorphae.Contains: Ctenizinae, Barychelidae, Theraphosidae, Nemesiidae, Migoidea. The Idiopoidea are a clade of mygalomorph spiders in which the legs bear tarsal spines, females lack scopulae on the first and second tarsi, and the anterior metatarsi and tibiae of the female possess digging spines. They are trapdoor spiders, living in burrows closed with wafer- or… Continue reading Crassitarsae

Mygalomorphae

Belongs within: Araneida.Contains: Avicularoidea. The Mygalomorphae are one of the main clades of spiders, characterised by chelicerae with fangs closing down the longitudinal axis of the body. Members of the families Atypidae and Antrodiaetidae have the cephalic part of the cephalothorax raised and the eyes on a common tubercle whereas in other mygalomorphs the eyes… Continue reading Mygalomorphae

Avicularoidea

Belongs within: Mygalomorphae.Contains: Anamini, Dipluridae, Hexathelidae, Nemesiidae, Rastelloidina, Theraphosidae. The Avicularoidea is a clade of mygalomorph spiders in which the male palps have the bulb perpendicular to the cymbium or directed back towards the base. This clade is further divided between the Dipluroidea, with numerous maxillary cuspules on the labium and a prolateral spine on… Continue reading Avicularoidea

Dipluridae

Belongs within: Avicularoidea. The Dipluridae are a group of mygalomorph spiders that capture prey with a sheet web attached to a funnel-shaped retreat. They are distinguished by an extremely long, widely spaced pair of posterior spinnerets that extend well past the abdomen; the median spinnerets are much shorter but also widely spaced (Jocqué & Dippenaar-Schoeman… Continue reading Dipluridae

Nemesiidae

Belongs within: Avicularoidea. The Nemesiidae are a fairly generalised family of mygalomorph spiders characterised by a double row of teeth on the paired leg claws, at least in females. They live in silk-lined burrows of various forms, with some species closing their burrow with a lid. In most subfamilies, both males and females have biserially… Continue reading Nemesiidae

Rastelloidina

Belongs within: Avicularoidea.Contains: Idiopoidea. The Rastelloidina are a clade of mygalomorph spiders characterised by the presence of a rastellum, an array of spines at the ends of the chelicerae used in digging. In members of the family Cyrtaucheniidae, the paired tarsal claws are biserially dentate in females and have a ventral S-shaped row of teeth… Continue reading Rastelloidina