Holozoster ovalis | |
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Species: | H. ovalis |
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Holozoster ovalis (Loman, 1902) | |
Holozoster ovalis is a species of harvestmen endemic to Mahe Island of Seychelles. [2]
Arachnids are arthropods in the class Arachnida of the subphylum Chelicerata. Arachnida includes, among others, spiders, scorpions, ticks, mites, pseudoscorpions, harvestmen, camel spiders, whip spiders and vinegaroons.
The Opiliones are an order of arachnids colloquially known as harvestmen, harvesters, harvest spiders, or daddy longlegs. As of April 2017, over 6,650 species of harvestmen have been discovered worldwide, although the total number of extant species may exceed 10,000. The order Opiliones includes five suborders: Cyphophthalmi, Eupnoi, Dyspnoi, Laniatores, and Tetrophthalmi, which were named in 2014.
Opilio is a genus of harvestmen with 35 known species.
Cosmetidae is a family of harvestmen in the suborder Laniatores. With over 700 species, it is one of the largest families in Opiliones. They are endemic of the New World with a Nearctic-Neotropical distribution where a large fraction of the diversity of Opiliones are represented by this single family. Cosmetidae have the northern extent of their range into the USA, where a small number species occur in the southern states. However, the family is especially diverse in Mexico, Central America and northern South America; especially the Andean realms. Their range also extends further south into Argentina and southern Brazil, but they are absent in Chile. Cosmetidae are prevalent in Amazonian region, but only relatively few also occur in Brazilian Atlantic Forest. Several species are also found in the Caribbean.
Dyspnoi is a suborder of harvestmen, currently comprising 43 extant genera and 356 extant species, although more species are expected to be described in the future. The eight families are currently grouped into three superfamilies: the Acropsopilionoidea, Ischyropsalidioidea, and Troguloidea.
Cyphophthalmi is a suborder of harvestmen, colloquially known as mite harvestmen. Cyphophthalmi comprises 36 genera, and more than two hundred described species. The six families are currently grouped into three infraorders: the Boreophthalmi, Scopulophthalmi, and Sternophthalmi.
Agoristenidae are a neotropical harvestman family of the Suborder Laniatores, in the superfamily Gonyleptoidea.
The Cranaidae are a family of neotropical harvestmen within the suborder Laniatores.
Podoctidae is a family of the harvestman infraorder Grassatores with about 130 described species.
The Fissiphalliidae are a small monotypic neotropical family of harvestmen within the suborder Laniatores, superfamily Zalmoxoidea. It contains only the single genus FissiphalliusMartens, 1988 with seven described species. All species are found in the South America.
Yania is a genus of harvestmen from South America. Yania flavolimbata is the only species in the monotypic genus Yania. It was first described by Roewer, 1914.
Eutimesius is a genus of harvestmen in the family Stygnidae with five described species. All species are found in South America.
Tetrophthalmi is an extinct suborder of Opiliones that had both median and lateral eyes. First described in 2014, it is known from two extinct species. Phylogenetic analysis suggests that this eye arrangement is the ancestral condition for harvestmen, placing Tetrophthalmi and Cyphophthalmi in a basal position within Opiliones.
Samoa is a genus of harvestmen. It consists of three species:
Siro is a genus of mite harvestmen in the family Sironidae with 7 described species. All are found in Europe.
Vonones is a genus of armoured harvestmen in the family Cosmetidae. There are at least two described species in Vonones.
Neosiro exilis is a species of mite harvestman in the family Sironidae. It is found in North America.
Paramiopsalis is a genus of harvestmen belonging to the family Sironidae. All species are found in Spain.
Parasiro is a genus of harvestmen belonging to the family Parasironidae with one described species. It is found in Southwestern Europe.
Cyphophthalmus is a genus of harvestmen belonging to the family Sironidae. It is found in Europe notably with several species in the Balkans and Turkey.