| Rhoicinus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Trechaleidae |
| Genus: | Rhoicinus Simon [1] |
| Type species | |
| Rhoicinus gaujoni | |
| Species | |
10, see text | |
Rhoicinus is a genus of spiders in the family Trechaleidae. It was first described in 1898 by Simon. As of 2017 [update] , it contains 10 species, all from South America. [1]
Rhoicinus comprises the following species: [1]
Desidae is a family of spiders, some of which are known as intertidal spiders. The family is named for the genus Desis, members of which live in a very unusual location — between the tides. The family has been reevaluated in recent years and now includes inland genera and species as well, such as Badumna and Phryganoporus. In 2017, the family Amphinectidae was merged into Desidae. The family Toxopidae has been separated off. Those intertidal spiders that are truly marine commonly live in barnacle shells, which they seal up with silk; this allows them to maintain an air bubble during high tide. They emerge at night to feed on various small arthropods that live in the intertidal zone.
Ground spiders comprise Gnaphosidae, the seventh largest spider family with nearly 2,000 described species in over 100 genera distributed worldwide. There are 105 species known to central Europe, and common genera include Gnaphosa, Drassodes, Micaria, Cesonia, Zelotes and many others. They are closely related to Clubionidae. At present, no ground spiders are known to be seriously venomous to humans.
Anyphaenidae is a family of araneomorph spiders, sometimes called anyphaenid sac spiders. They are distinguished from the sac spiders of the family Clubionidae and other spiders by having the abdominal spiracle placed one third to one half of the way anterior to the spinnerets toward the epigastric furrow on the underside of the abdomen. In most spiders the spiracle is just anterior to the spinnerets. Like clubionids, anyphaenids have eight eyes arranged in two rows, conical anterior spinnerets and are wandering predators that build silken retreats, or sacs, usually on plant terminals, between leaves, under bark or under rocks. There are more than 500 species in over 50 genera worldwide.
Wandering spiders (Ctenidae) are a family of spiders that includes the Brazilian wandering spiders. These spiders have a distinctive longitudinal groove on the top-rear of their oval carapace similar to those of the Amaurobiidae. They are highly defensive and venomous nocturnal hunters. Despite their notoriety for being dangerous, only a few members of Phoneutria have venom known to be hazardous to humans, but the venoms of this family are poorly known, so all larger ctenids should be treated with caution.
Trechaleidae is a family of araneomorph spiders first described by Eugène Simon in 1890, and includes about 140 described species in 16 genera. They all live in Central and South America except for Shinobius orientalis, which is endemic to Japan.
Argyrodes, also called dewdrop spiders, is a genus of comb-footed spiders that was first described by Eugène Louis Simon in 1864. They occur worldwide, and are best known for their kleptoparasitism. They can spin their own webs, but tend to invade and reside in their hosts' webs. This relationship can be commensal or even mutual if the dewdrop spider feeds on small trapped insects that are not eaten by the host. Some species can even prey upon the host.
Scytodes is a genus of spitting spiders that occur all around the world. The most widely distributed species is Scytodes thoracica, which originally had a palearctic distribution, but has been introduced to North America, Argentina, India, Australia, and New Zealand. The genus was first described by Pierre André Latreille in 1804. Spitting spiders have pale yellow bodies with black spots on their cephalothorax, and legs that are characterized by black bands.
Pirata is a genus of wolf spiders, commonly known as pirate wolf spiders.
Caponiidae is a family of ecribellate haplogyne spiders that are unusual in a number of ways. They differ from other spiders in lacking book lungs and having the posterior median spinnerets anteriorly displaced to form a transverse row with the anterior lateral spinnerets. Most species have only two eyes, which is also unusual among spiders. A few species of Caponiidae variously have four, six or eight eyes. In some species the number of eyes will increase when the spiderling changes its skin as it grows towards adulthood.
Glenognatha is a genus of long-jawed orb-weavers that was first described by Eugène Louis Simon in 1887. It was considerably revised in 2016.
Calacadia is a genus of South American intertidal spiders first described by H. Exline in 1960.
Synotaxus is a genus of araneomorph spiders in the family Synotaxidae that was first described by Eugène Louis Simon in 1895. Originally placed with the tangle web spiders, it was moved to the Synotaxidae in 2017.
Strotarchus is a genus of araneomorph spiders in the family Cheiracanthiidae that was first described by Eugène Louis Simon in 1888. Originally added to the Clubionidae, it was moved to the Miturgidae in 1967, and to the Cheiracanthiidae in 2014. It is considered a senior synonym of Marcellina and Coreidon.
Dossenus is a genus of spiders in the family Trechaleidae. It was first described in 1898 by Simon. As of 2017, it contains 3 species.
Heidrunea is a genus of spiders in the family Trechaleidae. It was first described in 1994 by Brescovit & Höfer. As of 2017, it contains 3 species, all from Brazil.
Hesydrus is a genus of spiders in the family Trechaleidae. It was first described in 1898 by Simon. As of 2017, it contains 7 Central and South American species.
Paradossenus is a genus of spiders in the family Trechaleidae. It was first described in 1903 by F. O. Pickard-Cambridge. As of 2017, it contains 13 species.
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