| Ero Temporal range: | |
|---|---|
 | |
| Ero aphana , female | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Mimetidae |
| Genus: | Ero C. L. Koch, 1836 |
| Species | |
Ero is a genus of pirate spiders first described in 1836. [1] They resemble comb-footed spiders due to their globular abdomen, which is higher than it is long. [2]
The upper side of their abdomen bears one or two pairs of conical tubercles and some curved bristle-like hairs. The anterior medial eyes project on small tubercles. Leg 1 is nearly twice as long as leg 4.
Their egg sacs are uniquely shaped elongated globes, about four millimetres in diameter. They are suspended from vegetation on a silken thread, and are made from an inner layer of yellowish brown silk and an outer layer of dark coloured, loosely woven silk, giving it a "woolly" appearance. The sacs are not guarded by the female, so when the juveniles hatch, they have to fend for themselves. Since Ero species are nocturnal, the adults are not often seen and the egg sacks often reveal their presence before specimens are found. [2]
Spiders in this genus are specialised spider killers. They attack potential victims by biting one of its legs and injecting toxins. It quickly retreats as the prey spider becomes paralysed. When its prey is immobile, it feeds by sucking out the victim's body fluids. [3]
The World Spider Catalog lists these species: [4]
Uloborus is a spider genus in the family Uloboridae with 72 described species. Most species occur in the tropics and subtropics, with only few species in northern America and Europe.
Castianeira is a genus of ant-like corinnid sac spiders first described by Eugen von Keyserling in 1879. They are found in Eurasia, Africa, and the Americas, but are absent from Australia. Twenty-six species are native to North America, and at least twice as many are native to Mexico and Central America.
Lycosa is a genus of wolf spiders distributed throughout most of the world. Sometimes called the "true tarantula", though not closely related to the spiders most commonly called tarantulas today, Lycosa spp. can be distinguished from common wolf spiders by their relatively large size. This genus includes the European Lycosa tarantula, which was once associated with tarantism, a dubious affliction whose symptoms included shaking, cold sweats, and a high fever, asserted to be curable only by the traditional tarantella dance. No scientific substantiation of that myth is known; the venom of Lycosa spiders is generally not harmful.
Hogna is a genus of wolf spiders with more than 200 described species. It is found on all continents except Antarctica.
Tmarus is a genus of crab spiders, comprising the following species:
Pardosa is a large genus of wolf spiders, with more than 500 described species that are found in all regions of the world.
Mimetus is a genus of pirate spiders in the family Mimetidae. They are found worldwide.
Dictyna is a genus of cribellate araneomorph spiders in the family Dictynidae, and was first described by Carl Jakob Sundevall in 1833.
Oxyopes is a genus of lynx spiders found worldwide. It includes arounds 300 species and is classified under the lynx spider family Oxyopidae. Like other lynx spiders, they are easily recognizable by the six larger eyes arranged hexagonally on top of the head (prosoma), with the remaining smaller two eyes in front. They are also characterized by long spine-like bristles (setae) on their legs. They are ambush predators, actively hunting prey by sight. Though they produce and use silk, they do not build webs to capture prey.
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