''Badumna'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
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 spiders. The
carapace
A carapace is a Dorsum (biology), 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 tor ...
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 to a ...
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 and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
, now found in urban areas along California's Pacific coast.
has also been found in
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
, though it is thought it was introduced.
Species
it contains sixteen species:
*''
Badumna arguta''
( Simon, 1906) – Australia (Queensland)
*''
Badumna bimetallica''
( Hogg, 1896) – Central Australia
*''
Badumna exilis''
Thorell, 1890 – Indonesia (Java)
*''
Badumna exsiccata''
(Strand, 1913) – Australia
*''
Badumna guttipes
''Badumna'' is a genus of intertidal spiders that was first described by Tamerlan Thorell 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 ...
''
(Simon, 1906) – Australia (Victoria, Tasmania)
*''
Badumna hirsuta
''Badumna'' is a genus of intertidal spiders that was first described by Tamerlan Thorell 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 ...
''
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.
* Ty ...
) – 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
Ludwig Carl Christian Koch (8 November 1825 – 1 November 1908) was a German entomologist and arachnologist.
He was born in Regensburg, Germany, and died in Nuremberg, Germany. He studied in Nuremberg, initially law, but then turned to medicin ...
, 1872) – Australia. Introduced to Japan, New Zealand
*''
Badumna longinqua''
(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
Badumnaat
BugGuide
{{Taxonbar, from=Q2714907
Araneomorphae genera
Desidae
Taxa named by Tamerlan Thorell