''Thianella'' is a possible

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

jumping spiders Jumping spiders are a group of spiders that constitute the family Salticidae. , this family contained over 600 described genera and over 6,000 described species, making it the largest family of spiderscomprising 13% of spider species. Jumping s ...

containing the single species, ''Thianella disjuncta''. It was first described by

Embrik Strand Embrik Strand (2 June 1876 – 3 November 1947) was an entomologist and arachnologist who classified many insect and spider species, including the greenbottle blue tarantula. Life and career Strand was born in Ål, Norway. He studied at t ...

in 1907, and is found only on

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

. Based on a male specimen, Roewer placed it close to ''

Thiania ''Thiania'' is a genus of jumping spiders that was first described by Carl Ludwig Koch in 1846. Species it contains twenty-three species, found in Asia from Pakistan to the Philippines, with one species found on Hawaii: *'' Thiania abdominalis ...

'', but his placements of salticids have often been questionable and no drawings currently exist. The name is an alteration of the salticid genus ''

'', and the species name is from Latin ' "separated". The

World Spider Catalog The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy. It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature. The WSC began as a series of ...

regards the genus and species names as

nomina dubia In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium,'' it may be impossible to determine whether a ...

(dubious names). In 1963, Schenkel named a new genus "''Thianella''", but this was invalid because of the prior existence of Strand's ''Thianella''. The

replacement name In biological nomenclature, a ''nomen novum'' (Latin for "new name"), replacement name (or new replacement name, new substitute name, substitute name) is a replacement scientific name that is created when technical, nomenclatural reasons have mad ...

'' Tasa'' was put forward by

Wanda Wesołowska Wanda Wesołowska (born 11 August 1950) is a Polish zoologist known for her work with jumping spiders. She has described more species of jumping spider than any contemporary writer, and is second only to Eugène Simon in the history of arachnolo ...

in 1981.

References

Fauna of Java Monotypic Salticidae genera Salticidae Spiders of Asia Taxa named by Embrik Strand {{Jumping-spider-stub