Walckenaeria

Walckenaeria is a genus of dwarf spiders that was first described by John Blackwall in 1833. It is a senior synonym of Paragonatium, as well as Wideria, Cornicularia, Prosopotheca, Tigellinus, and Trachynella.
Some males in this group have eyes set up on mounds or turrets. In extreme cases, several eyes are on a stalk taller than the carapace itself.

Species

it contains 195 species and two subspecies:

W. abantensis Wunderlich, 1995 – Albania, Greece, Turkey
W. aberdarensis – Kenya
W. acuminata Blackwall, 1833 – Europe, Caucasus, Iran
W. aenea Millidge, 1983 – Mexico
W. afur Thaler, 1984 – Canary Is.
W. aksoyi Seyyar, Demir & Türkes, 2008 – Turkey
W. alba Wunderlich, 1987 – Canary Is.
W. allopatriae Jocqué & Scharff, 1986 – Tanzania
W. alticeps – Europe, Turkey, Caucasus, Russia, Iran
W. anceps Millidge, 1983 – Canada
W. angelica Millidge, 1979 – Italy
W. angustifrons – France
W. antica – Europe, Turkey, Caucasus, Russia, Kyrgyzstan, China, Korea, Japan
W. aprilis Millidge, 1983 – USA
W. arcana Millidge, 1983 – Mexico
W. arctica Millidge, 1983 – USA, Canada
W. asymmetrica Song & Li, 2011 – China
W. atrotibialis – North America, Europe, Turkey, Caucasus, Russia, Kazakhstan, Kyrgyzstan
W. auranticeps – Russia, Canada, USA
W. aurata Millidge, 1983 – Mexico
W. baborensis Bosmans, 1993 – Algeria
W. basarukini Eskov & Marusik, 1994 – Russia
W. bifasciculata Tanasevitch, 1987 – Azerbaijan, Armenia
W. bifida Millidge, 1983 – USA
W. blanda Millidge, 1983 – USA
W. breviaria – USA
W. brevicornis – USA
W. brucei – Sweden
W. camposi Wunderlich, 1992 – Canary Is.
W. capito – Canada, Europe, Caucasus, Russia, Korea
W. carolina Millidge, 1983 – USA
W. castanea – USA, Canada, Greenland
W. cavernicola Wunderlich, 1992 – Canary Is.
W. chikunii Saito & Ono, 2001 – Korea, Japan
W. chiyokoae Saito, 1988 – Japan
W. christae Wunderlich, 1995 – Greece
W. cirriceps Thaler, 1996 – Greece, Turkey
W. clavicornis – North America, Europe, Russia, China, Mongolia, Japan
W. claviloba Wunderlich, 1995 – Greece
W. clavipalpis Millidge, 1983 – USA, Canada
W. cognata Holm, 1984 – Tanzania
W. columbia Millidge, 1983 – USA, Canada
W. communis – USA, Canada
W. coniceps Thaler, 1996 – Greece
W. coreana – Korea
W. corniculans – Europe, North Africa, Turkey
W. cornuella – USA, Canada
W. cretaensis Wunderlich, 1995 – Greece
W. crocata – Canary Is., Algeria
W. crocea Millidge, 1983 – Mexico
W. crosbyi – Costa Rica
W. cucullata – Europe, Caucasus, Russia
W. cuspidata Blackwall, 1833 – Europe, Russia
*Walckenaeria c. brevicula – USA, Canada, Greenland
*Walckenaeria c. obsoleta Chyzer & Kulczyński, 1894 – Hungary
W. cyprusensis Wunderlich, 1995 – Cyprus
W. dahaituoensis Song & Li, 2011 – China
W. dalmasi – Portugal, Spain, France
W. denisi Thaler, 1984 – Canary Is.
W. digitata – USA, Canada
W. directa – USA, Canada
W. discolor Millidge, 1983 – Mexico
W. dixiana – USA
W. dondalei Millidge, 1983 – Canada
W. dysderoides – Europe, Turkey, Caucasus, Russia
W. elgonensis Holm, 1984 – Kenya, Uganda
W. emarginata Millidge, 1983 – USA
W. erythrina – France, Morocco, Algeria, Tunisia
W. exigua Millidge, 1983 – USA, Canada
W. extraterrestris Bosmans, 1993 – Algeria, Greece
W. faceta Millidge, 1983 – Mexico
W. fallax Millidge, 1983 – Canada
W. ferruginea Seo, 1991 – China, Korea
W. floridiana Millidge, 1983 – USA
W. fraudatrix Millidge, 1983 – Russia, Mongolia, USA, Canada
W. furcillata – Europe, Turkey, Russia, Korea, Japan
W. fusciceps Millidge, 1983 – Canada
W. fuscocephala Wunderlich, 1987 – Canary Is.
W. galilea Tanasevitch, 2016 – Israel
W. gertschi Millidge, 1983 – Mexico
W. gologolensis Scharff, 1990 – Tanzania
W. golovatchi Eskov & Marusik, 1994 – Russia, Japan
W. gomerensis Wunderlich, 1987 – Canary Is.
W. grancanariensis Wunderlich, 2011 – Canary Is.
W. grandis – Azores
W. hamus Wunderlich, 1995 – Greece
W. heimbergi Bosmans, 2007 – Morocco
W. helenae Millidge, 1983 – USA
W. hierropalma Wunderlich, 1987 – Canary Is.
W. ichifusaensis Saito & Ono, 2001 – Korea, Japan
W. incisa – Europe
W. incompleta Wunderlich, 1992 – Canary Is.
W. indirecta – USA, Canada
W. inflexa – Sweden
W. insperata Millidge, 1979 – Italy
W. intoleranda – Costa Rica, Panama, Colombia
W. iviei Millidge, 1983 – Mexico
W. jinlin Yin & Bao, 2012 – China
W. jocquei Holm, 1984 – Malawi
W. kabyliana Bosmans, 1993 – Algeria
W. karpinskii – North America, Scandinavia, Lithuania, Russia, China, Mongolia
W. katanda Marusik, Hippa & Koponen, 1996 – Russia, Kazakhstan
W. kazakhstanica Eskov, 1995 – Russia, Kazakhstan
W. kigogensis Scharff, 1990 – Tanzania
W. kochi – Canada, Europe, Russia, Kazakhstan
W. koenboutjei Baert, 1994 – Russia
W. korobeinikovi Esyunin & Efimik, 1996 – Russia, Japan
W. kulalensis Holm, 1984 – Kenya
W. languida – Morocco, Algeria, France, Italy, Switzerland, Austria
W. latens Millidge, 1983 – USA
W. lepida – North America, Finland, Russia
W. maesta Millidge, 1983 – USA
W. mariannae Bosmans, 1993 – Algeria
W. martensi Wunderlich, 1972 – India, Nepal
W. mauensis Holm, 1984 – Kenya
W. meruensis Tullgren, 1910 – Tanzania
W. mesus – USA
W. mexicana Millidge, 1983 – Mexico
W. microps Holm, 1984 – Kenya, Uganda
W. microspinosa Wunderlich, 2012 – Canary Is.
W. microspiralis Millidge, 1983 – USA, Canada
W. minuscula Holm, 1984 – Kenya
W. minuta – USA
W. mitrata – Europe, Russia
W. monoceras – USA
W. monoceros – Europe, Azerbaijan, Central Asia
W. neglecta Bosmans, 1993 – Algeria
W. ngorongoroensis Holm, 1984 – Tanzania
W. nigeriensis Locket & Russell-Smith, 1980 – Nigeria, Kenya
W. nishikawai Saito, 1986 – Russia, Japan
W. nodosa O. Pickard-Cambridge, 1873 – Europe, Russia, China, Japan
W. nudipalpis – Europe, Azerbaijan, Russia, Japan
W. obtusa Blackwall, 1836 – Europe, Russia
W. occidentalis Millidge, 1983 – USA
W. ocularis Holm, 1984 – Kenya
W. oregona Millidge, 1983 – USA
W. orghidani Georgescu, 1977 – Cuba
W. orientalis – Russia, Korea, Japan
W. pallida – USA, Canada
W. palmgreni Eskov & Marusik, 1994 – Russia, Mongolia
W. palmierro Wunderlich, 1987 – Canary Is.
W. palustris Millidge, 1983 – Canada
W. parvicornis Wunderlich, 1995 – Mongolia
W. pellax Millidge, 1983 – USA, Canada
W. perdita – USA
W. picetorum – Sweden, Finland, Russia
W. pinocchio – USA, Canada
W. pinoensis Wunderlich, 1992 – Canary Is.
W. placida – USA
W. plumata Millidge, 1979 – Italy
W. prominens Millidge, 1983 – Canada
W. puella Millidge, 1983 – USA
W. pullata Millidge, 1983 – USA, Canada
W. pyrenaea – France
W. reclusa Millidge, 1983 – USA
W. redneri Millidge, 1983 – USA, Canada
W. rufula Millidge, 1983 – Mexico
W. rutilis Millidge, 1983 – Mexico
W. ruwenzoriensis – Congo, Uganda
W. saetigera Tanasevitch, 2011 – India
W. saniuana – USA
W. serrata Millidge, 1983 – USA
W. simplex Chyzer, 1894 – Germany to Greece
W. solivaga Millidge, 1983 – USA
W. spiralis – Russia, Canada, USA
W. stepposa Tanasevitch & Piterkina, 2007 – Kazakhstan
W. striata Wunderlich, 1987 – Canary Is.
W. stylifrons – Europe
W. subdirecta Millidge, 1983 – USA, Canada
W. subpallida Millidge, 1983 – USA
W. subspiralis Millidge, 1983 – USA, Canada
W. subterranea Wunderlich, 2011 – Canary Is.
W. subvigilax Millidge, 1983 – USA
W. supercilia Seo, 2018 – Korea
W. suspecta – Poland, Slovakia
W. tanzaniensis Jocqué & Scharff, 1986 – Tanzania
W. teideensis Wunderlich, 1992 – Canary Is.
W. tenella Millidge, 1983 – USA, Canada
W. tenuitibialis Bosmans, 1993 – Algeria
W. teres Millidge, 1983 – Canada
W. thrinax – USA
W. tibialis – USA, Canada
W. tilos Wunderlich, 2011 – Canary Is.
W. torta Bosmans, 1993 – Algeria
W. tricornis – USA, Canada
W. tumida – USA, Canada
W. turbulenta Bosmans, 1993 – Algeria
W. tystchenkoi Eskov & Marusik, 1994 – Russia
W. uenoi Saito & Irie, 1992 – Japan
W. unicornis O. Pickard-Cambridge, 1861 – Europe, Russia, Kazakhstan
W. uzungwensis Scharff, 1990 – Tanzania
W. vigilax – North America, Europe, Caucasus, Russia )
W. vilbasteae Wunderlich, 1980 – Estonia
W. weber – USA
W. westringi Strand, 1903 – Norway
W. wunderlichi Tanasevitch, 1983 – Ukraine, Russia, Kazakhstan, Uzbekistan
W. yunnanensis Xia, Zhang, Gao, Fei & Kim, 2001 – China

Formerly included:

W. anceps Xu, 1985
W. anguilliformis Xia, Zhang, Gao, Fei & Kim, 2001
W. bella
W. caobangensis Tu & Li, 2004
W. cylindrica Xu, 1994
W. dentata Zhu & Zhou, 1988
W. imadatei
W. iriei Ono, 2007
W. kamakuraensis
W. keikoae Saito, 1988
W. lurida Seo, 1991
W. mira
W. patagonica Tullgren, 1901
W. pini
W. saitoi Ono, 1991
W. selma
W. sounkyoensis Saito, 1986
W. transversa
W. vulgaris
W. xui Platnick, 1989

Nomina dubia

W. bicolor Blackwall, 1841
W. dulciacensis (Denis, 1950
W. exilis Blackwall, 1853
W. fusca Roșca, 1935
W. mengei Bösenberg, 1902
W. parva Blackwall, 1841
W. vafra Blackwall, 1856