| Improphantes | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Linyphiidae |
| Genus: | Improphantes Saaristo & Tanasevitch, 1996 [1] |
| Type species | |
| I. improbulus (Simon, 1929) | |
| Species | |
20, see text | |
Improphantes is a genus of dwarf spiders that was first described by Michael I. Saaristo & A. V. Tanasevitch in 1996. [2]
As of May 2019 [update] it contains twenty species, found in Algeria, China, Cyprus, Finland, France, Germany, Israel, Japan, Kazakhstan, Kenya, Kyrgyzstan, Russia, Spain, Sweden, Tajikistan, and Turkey: [1]
Ipa is a genus of dwarf spiders that was first described by Michael I. Saaristo in 2007.
Linyphiidae is a family of very small spiders comprising 4667 described species in 618 genera worldwide. This makes Linyphiidae the second largest family of spiders after the Salticidae. The family is poorly known; new genera and species are still being discovered throughout the world. The newest such genus is Yuelushannus from China, formally described in May 2020. Because of the difficulty in identifying such tiny spiders, there are regular changes in taxonomy as species are combined or divided.
Walckenaeria is a genus of dwarf spiders that was first described by John Blackwall in 1833. It is a senior synonym of Paragonatium, as well as Wideria, Cornicularia, Prosopotheca, Tigellinus, and Trachynella.
Lepthyphantes is a genus of dwarf spiders that was first described by Anton Menge in 1866.
Tenuiphantes is a genus of sheet weavers that was first described by Michael I. Saaristo & A. V. Tanasevitch in 1996.
Agyneta is a genus of dwarf spiders that was first described by J. E. Hull in 1911.
Acartauchenius is a genus of dwarf spiders that was first described by Eugène Louis Simon in 1884.
Megalepthyphantes is a genus of dwarf spiders that was first described by J. Wunderlich in 1994.
Micaria is a genus of ground spiders that was first described by Niklas Westring in 1851. They are 1.3 to 6.5 millimetres long.
Haplodrassus is a genus of ground spiders that was first described by R. V. Chamberlin in 1922. They range from 3 to 10 millimetres. H. signifer is the most widespread species, found across North America except for Alaska and northern Canada.
Anguliphantes is a genus of dwarf spiders that was first described by Michael I. Saaristo & A. V. Tanasevitch in 1996.
Araeoncus is a genus of dwarf spiders that was first described by Eugène Louis Simon in 1884. They closely resemble members of Diplocephalus; both genera have a uniquely shaped of the cephalothorax and a species-specific modification of the tibial apophysis of the pedipalp.
Centromerus is a genus of dwarf spiders that was first described by David B. Hirst in 1886.
Mughiphantes is a genus of dwarf spiders that was first described by Michael I. Saaristo & A. V. Tanasevitch in 1999.
Palliduphantes is a genus of dwarf spiders that was first described by Michael I. Saaristo & A. V. Tanasevitch in 2001.
Pelecopsis is a genus of dwarf spiders that was first described by Eugène Louis Simon in 1864.
Typhochrestus is a genus of sheet weavers that was first described by Eugène Louis Simon in 1884.