Hahnia is a genus of dwarf sheet spiders that was first described by C. L. Koch in 1841.
Species
it contains 102 species:

H. abrahami (Hewitt, 1915) – South Africa
H. alini Tikader, 1964 – Nepal
H. arizonica Chamberlin & Ivie, 1942 – USA
H. banksi Fage, 1938 – Costa Rica, Panama
H. barbara Denis, 1937 – Algeria
H. barbata Bosmans, 1992 – Indonesia (Sulawesi) H. benoiti Bosmans & Thijs, 1980 – Kenya H. biapophysis Huang & Zhang, 2017 – China H. breviducta Bosmans & Thijs, 1980 – Kenya H. caeca (Georgescu & Sarbu, 1992) – Romania H. caelebs Brignoli, 1978 – Bhutan H. cameroonensis Bosmans, 1987 – Cameroon H. cervicornata Wang & Zhang, 1986 – China H. chaoyangensis Zhu & Zhu, 1983 – China H. cinerea Emerton, 1890 – North America H. clathrata Simon, 1898 – South Africa H. corticicola Bösenberg & Strand, 1906 – Russia (East Siberia, Far East), China, Korea, Taiwan, Japan H. crozetensis Hickman, 1939 – Crozet Is. H. dewittei Bosmans, 1986 – Congo H. dongi Huang & Zhang, 2017 – China H. eburneensis Jocqué & Bosmans, 1982 – Ivory Coast H. eidmanni (Roewer, 1942) – Equatorial Guinea (Bioko) H. falcata Wang, 1989 – China H. flaviceps Emerton, 1913 – USA H. gigantea Bosmans, 1986 – Central Africa H. glacialis Sørensen, 1898 – Russia (East Siberia, Far East), North America H. harmae Brignoli, 1977 – Tunisia H. hauseri Brignoli, 1978 – Spain (Balearic Is.) H. helveola Simon, 1875 – Europe, Turkey H. heterophthalma Simon, 1905 – Argentina H. himalayaensis Hu & Zhang, 1990 – China, Vietnam H. implexa Seo, 2017 – Korea H. inflata Benoit, 1978 – Kenya H. innupta Brignoli, 1978 – Bhutan H. insulana Schenkel, 1938 – Madeira H. jocquei Bosmans, 1982 – Malawi H. laodiana Song, 1990 – China H. larseni Marusik, 2017 – South Africa H. laticeps Simon, 1898 – South Africa H. lehtineni Brignoli, 1978 – Bhutan H. leopoldi Bosmans, 1982 – Cameroon H. linderi Wunderlich, 1992 – Canary Is. H. lobata Bosmans, 1981 – South Africa H. maginii Brignoli, 1977 – Italy H. major Benoit, 1978 – Kenya H. manengoubensis Bosmans, 1987 – Cameroon H. martialis Bösenberg & Strand, 1906 – Japan H. mauensis Bosmans, 1986 – Kenya H. michaelseni Simon, 1902 – Chile, Argentina, Falkland Is. H. molossidis Brignoli, 1979 – Greece H. montana Seo, 2017 – Korea H. mridulae Tikader, 1970 – India H. musica Brignoli, 1978 – Bhutan, China H. naguaboi (Lehtinen, 1967) – Puerto Rico H. nava (Blackwall, 1841) – Europe, Russia (Europe to Far East), Turkey, Israel, Caucasus, Iran, Korea, Japan H. nigricans Benoit, 1978 – Kenya H. nobilis Opell & Beatty, 1976 – Mexico H. obliquitibialis Bosmans, 1982 – Malawi H. okefinokensis Chamberlin & Ivie, 1934 – USA H. ononidum Simon, 1875 – USA, Canada, Europe, Turkey, Russia (Europe to Far East), Kazakhstan H. oreophila Simon, 1898 – Sri Lanka H. ovata Song & Zheng, 1982 – China H. petrobia Simon, 1875 – Spain, France, Italy, Germany H. pinicola Arita, 1978 – Japan H. pusilla C. L. Koch, 1841 (type) – Europe, Russia (Europe to South Siberia) H. pusio Simon, 1898 – Sri Lanka H. pyriformis Yin & Wang, 1984 – China H. quadriseta Galán-Sánchez & Álvarez-Padilla, 2017 – Mexico H. rimaformis Zhang, Li & Pham, 2013 – Vietnam H. rossii Brignoli, 1977 – Italy H. saccata Zhang, Li & Zheng, 2011 – China H. sanjuanensis Exline, 1938 – USA, Mexico H. schubotzi Strand, 1913 – Central, East Africa H. senaria Zhang, Li & Zheng, 2011 – China H. sexoculata Ponomarev, 2009 – Russia (Caucasus) H. sibirica Marusik, Hippa & Koponen, 1996 – Russia (Europe to Far East), China H. simoni Mello-Leitão, 1919 – Brazil H. sirimoni Benoit, 1978 – Kenya H. spasskyi Denis, 1958 – Afghanistan H. spinata Benoit, 1978 – Kenya H. subcorticicola Liu, Huang & Zhang, 2015 – China H. submaginii Zhang, Li & Zheng, 2011 – China H. subsaccata Huang & Zhang, 2017 – China H. tabulicola Simon, 1898 – Africa H. tanikawai Suguro, 2015 – Japan H. tatei (Gertsch, 1934) – Venezuela H. thorntoni Brignoli, 1982 – China, Hong Kong, Laos, Japan H. thymorum Emerit & Ledoux, 2014 – France H. tikaderi Brignoli, 1978 – Bhutan H. tortuosa Song & Kim, 1991 – China H. tuybaana Barrion & Litsinger, 1995 – Philippines H. ulyxis Brignoli, 1974 – Greece H. upembaensis Bosmans, 1986 – Congo H. vangoethemi Benoit, 1978 – Kenya H. vanwaerebeki Bosmans, 1987 – Cameroon H. veracruzana Gertsch & Davis, 1940 – Mexico H. wangi Huang & Zhang, 2017 – China H. weiningensis Huang, Chen & Zhang, 2018 – China H. yakouensis Chen, Yan & Yin, 2009 – China H. zhejiangensis Song & Zheng, 1982 – China, Taiwan, Vietnam H. zhui Zhang & Chen, 2015 – China H. zodarioides (Simon, 1898) – South Africa






