''Badumna'' is a

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 ...

of intertidal spiders that was first described by

Tamerlan Thorell Tord Tamerlan Teodor Thorell (3 May 1830 – 22 December 1901) was a Sweden, Swedish arachnologist. Thorell studied spiders with Giacomo Doria at the Museo Civico di Storia Naturale de Genoa. He corresponded with other arachnologists, such as Oc ...

in 1890. They are harmless spiders that can be found around human structures and buildings. The most well-known species is '' B. insignis'', also known as the "black house spider" or "black window spider".

Description

They are medium to large

cribellate Cribellum literally means "little sieve", and in biology the term generally applies to anatomical structures in the form of tiny perforated plates. In certain groups of diatoms it refers to microscopically punctured regions of the frustule, or ...

spiders. The

carapace A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the unde ...

is pale brown to a darker brown in color, with long or small brown hairs being found besides smaller white hairs. The

opisthosoma The opisthosoma is the posterior part of the body in some arthropods, behind the prosoma ( cephalothorax). It is a distinctive feature of the subphylum Chelicerata (arachnids, horseshoe crabs and others). Although it is similar in most respects ...

has a dark striping or spotting.

Distribution

Most of the species are considered to be endemic in the Indo-Australian region, but some have been introduced elsewhere. '' B. longinqua'' is the only species introduced to

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

, now found in urban areas along California's Pacific coast. ''B. insignis'' has also been found in

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

, though it is thought it was introduced.

Species

it contains sixteen species: *'' Badumna arguta'' (

Simon Simon may refer to: People * Simon (given name), including a list of people and fictional characters with the given name Simon * Simon (surname), including a list of people with the surname Simon * Eugène Simon, French naturalist and the genus ...

, 1906) – Australia (Queensland) *'' Badumna bimetallica'' ( Hogg, 1896) – Central Australia *'' Badumna exilis'' Thorell, 1890 – Indonesia (Java) *'' Badumna exsiccata'' (Strand, 1913) – Australia *'' Badumna guttipes'' (Simon, 1906) – Australia (Victoria, Tasmania) *'' Badumna hirsuta'' Thorell, 1890 (

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * ...

) – Indonesia (Java) *'' Badumna hygrophila'' (Simon, 1902) – Australia (Queensland) *''

Badumna insignis The black house spider or common black spider (''Badumna insignis'') is a common species of cribellate Australian spider, introduced to New Zealand and Japan. A closely related species, ''Badumna longinqua'', the grey house spider, has a similar ...

'' ( L. Koch, 1872) – Australia. Introduced to Japan, New Zealand *''

Badumna longinqua ''Badumna longinqua'' or the grey house spider is a species of spiders in the family Desidae. Native to eastern Australia, it has been introduced into New Zealand, Japan, the United States, Mexico, Uruguay and the Netherlands. Description ''Ba ...

'' (L. Koch, 1867) – Eastern Australia. Introduced to USA (Coastal Florida and California), Mexico, Uruguay, Japan, New Zealand *'' Badumna maculata'' (Rainbow, 1916) – Australia (Queensland) *'' Badumna microps'' (Simon, 1908) – Australia (Western Australia) *'' Badumna pilosa'' (Hogg, 1900) – Australia (Victoria) *'' Badumna scalaris'' (L. Koch, 1872) – Australia (Queensland, central Australia) *'' Badumna senilella'' (Strand, 1907) – Australia *'' Badumna socialis'' (Rainbow, 1905) – Australia (New South Wales) *'' Badumna tangae'' Zhu, Zhang & Yang, 2006 – China

References

External links

Badumna
at

BugGuide BugGuide (or BugGuide.net) is a website and online community of naturalists, both amateur and professional, who share observations of arthropods such as insects, spiders, and other related creatures. The website consists of informational guide p ...

{{Taxonbar, from=Q2714907 Desidae genera Taxa named by Tamerlan Thorell