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 inhabit the intertidal zone. 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 and the family Toxopidae was separated from it. 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.
Azerithonica is a genus of Asian funnel weavers containing the single species, Azerithonica hyrcanica. It was first described by E. Guseinov, Yuri M. Marusik & S. Koponen in 2005, and has only been found in Azerbaijan.
Paracedicus is a genus of Asian araneomorph spiders in the family Desidae first described by Victor R. Fet in 1993. First placed as a subgenus of Cedicus, it was elevated to genus status in 2003.
Cepheia is a monotypic genus of European araneomorph spiders in the family Synaphridae containing the single species, Cepheia longiseta. It was first described as Theonoe longiseta in 1881, and was moved to its own genus in 1894. Originally placed with the tangle-web spiders, it was moved several times before settling in the Synaphridae in 2003. Paolo Brignoli noted that it is an unidentifiable theridiid.
Synaphris is a genus of araneomorph spiders in the family Synaphridae, and was first described by Eugène Louis Simon in 1894. Originally placed with the tangle web spiders, it was moved to the Symphytognathidae in 1973, and to the Synaphridae in 2003.
Raveniola is a genus of spiders in the family Nemesiidae, first described in 1987 by Zonstein.
Carpathonesticus caucasicus is a species of araneomorph spider of the family Nesticidae. It occurs in Georgia, where it is found in caves.
Aelurillus kopetdaghi is a species of jumping spider in the genus Aelurillus that lives in Turkmenistan. It was first described in 1996 by Wanda Wesołowska. The species is dark brown and medium-sized, with a bristly carapace that is between 3.4 and 3.5 mm long and a hairy abdomen that is between 3.2 and 4.1 mm long. The female is larger than the male. They also differ in details, such as the colour of the pedipalps, which are orange and brown respectively. The copulatory organs of the female are superficially similar to other species in the genus, like Aelurillus v-insignitus, but the internal structure is more complex.
Chalcoscirtus lepidus is a species of jumping spider in the genus Chalcoscirtus that has been found in Afghanistan, Iran, Tajikistan,Turkmenistan and Uzbekistan. The spider was first described in 1996 by Wanda Wesołowska, although the first male was identified three years later. The spider is small, with a carapace between 1.06 and 1.2 mm long and an abdomen between 1.03 and 2.2 mm long. The female is larger and lighter than the male and has three narrower stripes on the back while the male has a large scutum. In both cases, the carapace is plain. The scutum and lack of pattern on the carapace help distinguish the spider from related species. It can also be identified by its copulatory organs, particularly the long curved embolus on the male and the position of the copulatory openings on the female epigyne, which differ from the otherwise similar Chalcoscirtus infimus.
Pseudomogrus mirandus is a species of jumping spider in the genus Pseudomogrus. It has been found in Turkmenistan on the steppe, although it may also live in Afghanistan and Iran. The species was first defined by Wanda Wesołowska in 1991, one of over 500 described by the arachnologist. She originally placed it in the genus Yllenus, but was moved to the new genus Logunyllus in 2016, and then to its present designation in 2019. The spider is small, with a carapace measuring between 1.6 and 1.78 mm long and an abdomen between 1.4 and 2.3 mm long. The male has a red-brown or dark brown carapace and dark grey abdomen, the female a brown carapace and greyish-brown abdomen. All have a covering of small white scales. The spider has yellow legs. The copulatory organs are distinctive and enable the spider to be distinguished from others in the genus. The female epigyne has a half-moon-shaped pocket and simple insemination ducts that lead to spherical spermathecae. The male lacks the ventral tibial apophysis common in other species and has a compound terminal apophysis that is of a similar length to its thin embolus.
Silometopoides is a genus of sheet weavers that was first described by K. Y. Eskov in 1990.
Cozyptila is a genus of crab spiders that was first described by Y. M. Marusik, Pekka T. Lehtinen & M. M. Kovblyuk in 2005. As of July 2020 it contains three species, found in Europe and on Cyprus: C. blackwalli, C. guseinovorum, and C. nigristernum.
Phintella parva is a species of jumping spider in the genus Phintella that lives in China, Japan, Korea and Russia. The spider is yellow in colour and small, measuring between 3.5 and 4 mm in body length. It exhibits sexual dimorphism, with the female being slightly larger than the male. The abdomen has a striped pattern and the carapace has circular markings, but the most significant difference to other members of the genus are its copulatory organs, particularly the short curved embolus in the male and the long straight insemination ducts in the female. The species was first described by Wanda Wesołowska in 1981 based on a specimen collected in North Korea. The spider was originally classified within the genus Icius under the name Icius parvus, but was transferred to its current genus by Jerzy Prószyński in 1983. It was also recognised that other examples of the spider had been previously collected, including, at one time, a description of one found in the Soviet Union published in 1979 without a species name.
Phintella pygmaea is an endemic species of jumping spider in the genus Phintella that lives in China. It was first described in 1981 by Wanda Wesołowska from a holotype discovered in Guangdong. Only the female has been identified. The spider is small, with a brown cephalothorax and yellow abdomen. It has distinctive half-crescent markings on the cephalothorax and a ridge marked by two depressions on the small epigyne.
Plexippoides regius is a species of jumping spider in the genus Plexippoides. The species was first described by Wanda Wesołowska in 1981 based on specimens from North Korea but its distribution has been extended to include China, Russia and South Korea, with examples found as far as Sichuan. The spider is small, with a body length between 6.9 and 8.65 mm, the female being generally larger than the male. It is distinguished by the two brown lines that stretch across the back of its carapace and abdomen that is recalled in its Korean name. Otherwise, the spider varies in coloration, with some examples having an orange or yellow-brown carapace and others dark brown. The male has a long embolus that encircles the palpal bulb. The female has complex seminal ducts that lead to heavily sclerotised and many-chambered spermathecae.
Persiscape is a genus of funnel weavers first described by Alireza Zamani and Yuri M. Marusik in 2020.
Halocosa is a genus of wolf spiders first described by G. N. Azarkina and L. A. Trilikauskas in 2019. As of December 2021 it contains only three species: H. cereipes, H. hatanensis, and H. jartica. The type species, Halocosa cereipes, was originally described under the name "Lycosa cereipes".
Yuri Mikhailovitch Marusik is a Russian arachnologist.
Pseudomogrus guseinovi is a species of jumping spider in the genus Pseudomogrus that lives in Azerbaijan, Kazakhstan and Turkmenistan. It thrives in desert and semidesert environments, including the Repetek Biosphere State Reserve in the Karakum Desert. The species was first described by Dmitri Logunov and Yuru Marusik in 2003. They originally placed it in the genus Yllenus, but it was moved to the new genus Logunyllus in 2016, and then to its present designation in 2019. The spider is small, with a carapace that is between 2.13 and 2.63 mm long and an abdomen between 2,13 and 2.7 mm long. The female is larger than the male. The male has a distinctive white pattern on its body, including two white stripes and a white "A" on its eye field. The female has a distinctive deep pocket in its epigyne that is shaped like the Greek letter Greek: Π. Other aspects of the female copulatory organs also help distinguish the spider from other members of the genus, including the shape of the insemination ducts and spermathecae.
Evarcha michailovi is a species of jumping spider in the genus Evarcha that is endemic to Europe and Asia. It thrives in dry grassland and heath, but it has also been found in areas of human habitation. The species was first described in 1992 by Dmitri Logunov based on a specimen found in Russia. Examples of the species had been previously discovered in Mongolia ten years earlier, but these had been misidentified. The spider has a brown to dark brown carapace that measures between 2.08 and 2.75 mm in length that, in some examples, has light stripes running down its sides. Its black eye field is marked by a white stripe while its clypeus is orange and hairy. It has an abdomen that is between 1.88 and 3.13 mm long, the females are generally larger than males. It is often dark grey on top but there is a wide variation in the pattern across different specimens. The underside of the abdomen is a uniform brown-grey, The markings on the carapace help distinguish the species from others in the genus, as does the species distribution. It can also be identified by its copulatory organs, particularly the shape of the male embolus and the presence of a plate on the female epigyne.
