''Tidarren'' 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
tangle-web spiders first described by
Ralph Vary Chamberlin
Ralph Vary Chamberlin (January 3, 1879October 31, 1967) was an American biologist, ethnographer, and historian from Salt Lake City, Utah. He was a faculty member of the University of Utah for over 25 years, where he helped establish the School of ...
&
Wilton Ivie
Vaine Wilton Ivie (March 28, 1907 – August 8, 1969) was an American arachnologist, who described hundreds of new species and many new genera of spiders, both under his own name and in collaboration with Ralph Vary Chamberlin. He was employed by ...
in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one palp. Though it is uncertain why they do this, it may be done to increase mobility, as the palps are disproportionately large compared to the size of the body. It may also be done because only one palp is needed.
Females of the
Yemen
Yemen (; ar, ٱلْيَمَن, al-Yaman), officially the Republic of Yemen,, ) is a country in Western Asia. It is situated on the southern end of the Arabian Peninsula, and borders Saudi Arabia to the Saudi Arabia–Yemen border, north and ...
i species ''
T. argo'' tear off the single remaining palp before feeding on males. The palp remains attached to the female's epigynum for about four hours, continuing to function despite being separated from the male's body.
Species
it contains twenty-four species:
*''
Tidarren aethiops''
Knoflach & van Harten, 2006 — Congo
*''
Tidarren afrum''
Knoflach & van Harten, 2006 — Cameroon, Uganda
*''
Tidarren apartiolum''
Knoflach & van Harten, 2006 — Madagascar
*''
Tidarren argo''
Knoflach & van Harten, 2001 — Yemen, Chad
*''
Tidarren circe
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Namibia
*''
Tidarren cuneolatum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
(Tullgren, 1910) — Cape Verde Is., Canary Is., Africa, Yemen
*''
Tidarren dasyglossa
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Madagascar
*''
Tidarren dentigerum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Yemen
*''
Tidarren ephemerum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Madagascar
*''
Tidarren gracile
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Yemen
*''
Tidarren griswoldi
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Cameroon
*''
Tidarren haemorrhoidale''
(Bertkau, 1880) — USA to Argentina
*''
Tidarren horaki
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Madagascar
*''
Tidarren konrad
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Yemen
*''
Tidarren lanceolatum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Congo
*''
Tidarren levii
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Schmidt, 1957 — Congo
*''
Tidarren mixtum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
(O. Pickard-Cambridge, 1896) — Mexico to Costa Rica
*''
Tidarren obtusum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Madagascar
*''
Tidarren perplexum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Cameroon, Congo
*''
Tidarren scenicum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
(Thorell, 1899) — Cameroon, Guinea-Bissau, Ivory Coast, South Africa
*''
Tidarren sheba
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Yemen
*''
Tidarren sisyphoides
''Tidarren sisyphoides'' is a spider of the family Theridiidae (tangle web spiders).
The male of this species is only ~1% the size of the female. At copulation (zoology), copulation, the male dies during insertion and remains attached to the fem ...
''
(Walckenaer, 1841) — USA to Argentina, Caribbean
*''
Tidarren ubickorum
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — South Africa
*''
Tidarren usambara
''Tidarren'' is a genus of tangle-web spiders first described by Ralph Vary Chamberlin & Wilton Ivie in 1934.
Males are much smaller than females, and they amputate one of their palps before maturation, entering their adult life with only one p ...
''
Knoflach & van Harten, 2006 — Tanzania
References
External links
Theridiidae
Araneomorphae genera
Taxa named by Ralph Vary Chamberlin
Taxa named by Wilton Ivie
{{Theridiidae-stub