Neogoveidae | |
---|---|
Immature Metasiro sassafrasensis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Chelicerata |
Class: | Arachnida |
Order: | Opiliones |
Suborder: | Cyphophthalmi |
Infraorder: | Sternophthalmi |
Superfamily: | Ogoveoidea |
Family: | Neogoveidae Shear, 1980 |
Diversity | |
8 genera, 27 species | |
The Neogoveidae are a family of harvestmen with 27 described species in eight genera. However, eight species of Huitaca , 17 species of Metagovea and 12 species of Neogovea are currently awaiting description. [1]
The name is a combination of Ancient Greek neo "new" and Ogoveidae, a previously described family of Cyphophthalmi that is closely related to Neogoveidae. [2]
Neogoveidae are 1 to 4.5 mm long and eyeless. They often exhibit a solea (modified area with a high concentration of sensory setae) on the first pair of tarsi. Their chelicerae are smooth, with a dorsal crest and ventral process, and can be either short and robust or long and antennuate. They possess laterally projecting ozophores, tarsal claws on the second pair of legs with a row of teeth, tarsal claws on the third and fourth pairs of legs often with small pegs, and an inconspicuous or absent opisthosomal median furrow. The adenostyle is variable, and can be lamelliform, fimbriate, or digitiform. They exhibit both the fusion of coxae 2 and 3, and the fusion of sternites 8 and 9 with tergite 9, the latter of which forms a complete corona analis, which is not present in the genus Metasiro. [2] Exocrine gland pores are located on the sternum in most genera, except Canga and Neogovea, in which they are absent, and Metasiro, in which they are located on the anal plate. [3] The dorsal scutum is heavily granulated, the metatarsi of the legs are ornamented, and the structure of the spermatopositor is highly variable across genera. [2]
Neogoveidae occur in tropical regions between 10° north and 5° south of the equator in both South America and West Africa, with the exception of Metasiro , which is found in southeastern United States. [2]
Current research suggests that the diversity of neotropical Neogovidae is much higher than currently known, as new species were found at virtually every place where samples were taken. Currently, the greatest amount of known Neogoveid diversity is known from Colombia, although it is unknown if this reflects greater ecosystem diversity or greater sampling efforts in that country. [1] It is thought that Neogoveidae possesses a considerably large amount of undescribed diversity compared to most other Cyphophthalmi families. [3]
A recent phylogeographical study of Metasiro suggests that, as the genus exists at endpoints of large watersheds, mite harvestmen may be able to disperse by utilizing moving bodies of water. [4]
Molecular studies suggest that the South American species are paraphyletic, with the North American Metasiro forming a sister group to all other Neogoveids, Canga forming a sister group to the African Parogovia , and the rest of the South American genera forming a clade. [5] [3] The family is believed to form a sister group relationship with the West African family Ogoveidae. Together, these 2 families make up the superfamily Ogoveoidea, which is the sister group to Troglosironidae. Troglosironidae and Ogoveoidea together make up the infraorder Sternophthalmi, which is well supported as monophyletic by recent phylogenetic analyses. [5]
| |||||||||||||||||||||||||||||||||||||||||||||
Recovered by Giribet et al. (2012), with position of Tucanogovea based on original description by Karaman (2013). |
The species Shearogovea mexasca was formerly included in the genus Neogovea, but has since been removed from both the genus and the family, and its taxonomic position within Cyphophthalmi is uncertain. [6] It has been proposed, however, that the species be re-included within Neogoveidae, and that Metasiro be excluded from the family. [7]
Species: [8]
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.
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.
The Sironidae are a family of harvestmen with more than 60 described species.
Troglosironidae is a family of harvestmen with seventeen described species in a single genus, Troglosiro, which is found on the island of New Caledonia, in the Pacific Ocean.
Ogoveidae is a family of harvestmen with three described species in one genus, Ogovea, which is found in equatorial West Africa.
The Stylocellidae are a family of harvestmen with about 40 described species, all of which occur in Southern or Southeastern Asia. Members of this family are from one to seven millimeters long. While Stylocellus species have eyes, these are absent in the other two genera.
The Cranaidae are a family of neotropical harvestmen within the suborder Laniatores.
The Zalmoxidae are a family of harvestmen within the suborder Laniatores.
Harvestmen (Opiliones) are an order of arachnids often confused with spiders, though the two orders are not closely related. Research on harvestman phylogeny is in a state of flux. While some families are clearly monophyletic, that is share a common ancestor, others are not, and the relationships between families are often not well understood.
Gonzalo Giribet is a Spanish-American invertebrate zoologist and Alexander Agassiz Professor of zoology working on systematics and biogeography at the Museum of Comparative Zoology in Harvard University. He is a past president of the International Society for Invertebrate Morphology, of the Willi Hennig Society, and vice-president of the Sociedad Española de Malacología.
Huitaca boyacaensis is a species of neotropical harvestmen in the family Neogoveidae, first described by Ligia Benavides and Gonzalo Giribet in 2013.
Canga renatae is a species in a monotypic genus of harvestmen in the family Neogoveidae. It was discovered in 2010 in a cave system in the Serra dos Carajás, Pará State, Brazil.
Neosiro exilis is a species of mite harvestman in the family Sironidae. It is found in North America.
Metasiro sassafrasensis is a species of mite harvestman in the family Neogoveidae. It is found in North America.
Parasironidae is a family of harvestmen with 7 described species.
Ebrosiro is a genus of harvestmen belonging to the family Parasironidae, it is monotypic with one described species. It is found in Southern Europe.
Cimmerosiro is a genus of harvestmen in the suborder Cyphophthalmi with three described species. All three species are found in Eastern Europe and West Asia.
Tirrenosiro is a genus of harvestmen in the suborder Cyphophthalmi with two described species. Both species are found in Southern Europe.
Triaenonychoidea is a superfamily of armoured harvestmen in the order Opiliones. There are 4 families and more than 440 described species in Triaenonychoidea.