In synonymy:
Acrosoma Perty, 1833 = Micrathena Sundevall, 1833 (Simon, 1895a: 859)
Chaetacis Simon, 1895 = Micrathena Sundevall, 1833 (Magalhaes & Santos, 2012: 29)
Ildibaha Keyserling, 1892 = Micrathena Sundevall, 1833 (Levi, 1985a: 440)
Keyserlingia O. Pickard-Cambridge, 1890 = Micrathena Sundevall, 1833 (Simon, 1895a: 859)
Meganopla Simon, 1864 = Micrathena Sundevall, 1833 (Butler, 1873b: 211, sub Acrosoma, by transfer of the type species)
Thaumastobella Mello-Leitão, 1945 = Micrathena Sundevall, 1833 (Scharff, 1991: 155)
In synonymy:
Micrathena acanthomasta (Mello-Leitão, 1945) = Micrathena spitzi Mello-Leitão, 1932 (Levi, 1985a: 551)
Micrathena aciculata Simon, 1897 = Micrathena crassa Keyserling, 1864 (Levi, 1985a: 474)
Micrathena aculeata (Chickering, 1960) = Micrathena aureola C. L. Koch, 1836 (Levi, 1985a: 610, sub Chaetacis)
Micrathena aculeata (Fabricius, 1775) = Micrathena spinosa Linnaeus, 1758 (Levi, 1985a: 581)
Micrathena acutoides (Taczanowski, 1879) = Micrathena triangularispinosa De Geer, 1778 (Levi, 1985a: 537)
Micrathena acutospina (Keyserling, 1863) = Micrathena lucasi Keyserling, 1864 (Levi, 1985a: 496)
Micrathena affinis (C. L. Koch, 1839) = Micrathena aureola C. L. Koch, 1836 (Levi, 1985a: 610, sub Chaetacis)
Micrathena alata (Walckenaer, 1841) = Micrathena plana C. L. Koch, 1836 (Levi, 1985a: 509)
Micrathena albomaculata (Keyserling, 1892) = Micrathena flaveola Perty, 1839 (Levi, 1985a: 544)
Micrathena alpha Caporiacco, 1947 = Micrathena acuta Walckenaer, 1841 (Levi, 1985a: 542)
Micrathena amplexa Mello-Leitão, 1944 = Micrathena furcata Hahn, 1822 (Levi, 1985a: 568)
Micrathena armata (Olivier, 1789) = Micrathena militaris Fabricius, 1775 (Bryant, 1940: 376)
Micrathena asciata (Walckenaer, 1841) = Micrathena digitata C. L. Koch, 1839 (Levi, 1985a: 475)
Micrathena bergi Simon, 1901 = Micrathena crassispina C. L. Koch, 1836 (Levi, 1985a: 494)
Micrathena bifissa (Keyserling, 1892) = Micrathena brevispina Keyserling, 1864 (Levi, 1985a: 522)
Micrathena bifurcata (Hahn, 1835) = Micrathena furcata Hahn, 1822 (Levi, 1985a: 568)
Micrathena browningi Chickering, 1960 = Micrathena schenkeli Mello-Leitão, 1939 (Levi, 1985a: 539)
Micrathena brunnea Mello-Leitão, 1941 = Micrathena guerini Keyserling, 1864 (Levi, 1985a: 449)
Micrathena bryantae Chickering, 1964 = Micrathena forcipata Thorell, 1859 (Levi, 1985a: 594)
Micrathena bullata (Walckenaer, 1841) = Micrathena digitata C. L. Koch, 1839 (Levi, 1985a: 475)
Micrathena cala Chamberlin, 1916 = Micrathena fidelis Banks, 1909 (Levi, 1985a: 477, contra Mello-Leitão, 1941b: 266, who placed M. c. as a synonym of M. elongata instead)
Micrathena carvalhoi Mello-Leitão, 1944 = Micrathena pungens Walckenaer, 1841 (Levi, 1985a: 599)
Micrathena catenulata F. O. Pickard-Cambridge, 1904 = Micrathena funebris Marx, 1898 (Levi, 1985a: 586)
Micrathena caucaensis Strand, 1908 = Micrathena bicolor Keyserling, 1864 (Levi, 1985a: 534)
Micrathena cicuta Gonzaga & Santos, 2004 = Micrathena ruschii Mello-Leitão, 1945 (Magalhaes & Santos, 2011b: 46)
Micrathena coleophora Chamberlin & Ivie, 1936 = Micrathena schreibersi Perty, 1833 (Chickering, 1961a: 452)
Micrathena comstocki Archer, 1951 = Micrathena sagittata Walckenaer, 1841 (Levi, 1978a: 432)
Micrathena conspicua (Mello-Leitão, 1929, T from Micrathena) = Micrathena picta C. L. Koch, 1836 (Levi, 1985a: 609, sub Chaetacis)
Micrathena cornigera (O. Pickard-Cambridge, 1890) = Micrathena sexspinosa Hahn, 1822 (Chickering, 1961a: 456)
Micrathena cuminamensis Mello-Leitão, 1930 = Micrathena miles Simon, 1895 (Levi, 1985a: 482)
Micrathena cylindracea Franganillo, 1930 = Micrathena forcipata Thorell, 1859 (Bryant, 1940: 372)
Micrathena dahli Reimoser, 1917 = Micrathena triangularispinosa De Geer, 1778 (Levi, 1985a: 537)
Micrathena defensa (Butler, 1873) = Micrathena vigorsi Perty, 1833 (Levi, 1985a: 557)
Micrathena degeeri (Walckenaer, 1841) = Micrathena plana C. L. Koch, 1836 (Gonzaga & Santos, 2004: 333)
Micrathena dentata (Chickering, 1960) = Micrathena aureola C. L. Koch, 1836 (Levi, 1985a: 610, sub Chaetacis)
Micrathena difissa (Walckenaer, 1841) = Micrathena furcata Hahn, 1822 (Levi, 1985a: 568)
Micrathena disjuncta Chickering, 1961 = Micrathena duodecimspinosa O. Pickard-Cambridge, 1890 (Levi, 1985a: 506)
Micrathena duplicata (Walckenaer, 1841) = Micrathena schreibersi Perty, 1833 (Levi, 1985a: 554)
Micrathena evansi (Chickering, 1960) = Micrathena picta C. L. Koch, 1836 (Levi, 1985a: 609, sub Chaetacis)
Micrathena fericula (O. Pickard-Cambridge, 1890) = Micrathena flaveola Perty, 1839 (Levi, 1985a: 544)
Micrathena flabellata (Walckenaer, 1841) = Micrathena furcata Hahn, 1822 (Levi, 1985a: 568)
Micrathena flavomaculata (Keyserling, 1863) = Micrathena forcipata Thorell, 1859 (Chickering, 1964: 257)
Micrathena gamma Caporiacco, 1947 = Micrathena schenkeli Mello-Leitão, 1939 (Levi, 1985a: 539)
Micrathena gentilicia Chickering, 1964 = Micrathena schenkeli Mello-Leitão, 1939 (Levi, 1985a: 539)
Micrathena gertschi Chickering, 1964 = Micrathena triangularis C. L. Koch, 1836 (Levi, 1985a: 512)
Micrathena gladiola (Walckenaer, 1841) = Micrathena flaveola Perty, 1839 (Levi, 1985a: 544)
Micrathena granulata F. O. Pickard-Cambridge, 1904 = Micrathena funebris Marx, 1898 (Levi, 1978a: 426)
Micrathena guanabara Levi, 1985 = Micrathena sanctispiritus Brignoli, 1983 (Levi & Santos, 2013: 225)
Micrathena hamata Chickering, 1960 = Micrathena spinosa Linnaeus, 1758 (Levi, 1985a: 581)
Micrathena henseli Reimoser, 1917 = Micrathena nigrichelis Strand, 1908 (Levi, 1985a: 455)
Micrathena hirsuta (Mello-Leitão, 1932) = Micrathena aureola C. L. Koch, 1836 (Levi, 1985a: 610, sub Chaetacis)
Micrathena hyatti Chickering, 1960 = Micrathena digitata C. L. Koch, 1839 (Levi, 1985a: 475)
Micrathena imbellis Simon, 1895 = Micrathena saccata C. L. Koch, 1836 (Levi, 1985a: 490)
Micrathena inaequalis F. O. Pickard-Cambridge, 1904 = Micrathena lucasi Keyserling, 1864 (Levi, 1985a: 496)
Micrathena inermis (Schenkel, 1953) = Micrathena acuta Walckenaer, 1841 (Levi, 1985a: 542)
Micrathena insolita Chickering, 1961 = Micrathena evansi Chickering, 1960 (Levi, 1985a: 536)
Micrathena joinvillicola Strand, 1915 = Micrathena lucasi Keyserling, 1864 (Levi, 1985a: 496)
Micrathena lepida Chickering, 1964 = Micrathena evansi Chickering, 1960 (Levi, 1985a: 536)
Micrathena lesserti Mello-Leitão, 1939 = Micrathena schreibersi Perty, 1833 (Levi, 1985a: 555)
Micrathena levii Chickering, 1964 = Micrathena evansi Chickering, 1960 (Levi, 1985a: 536)
Micrathena longicauda (O. Pickard-Cambridge, 1890) = Micrathena horrida Taczanowski, 1873 (Chickering, 1961a: 424)
Micrathena lordotica Mello-Leitão, 1941 = Micrathena rubicundula Keyserling, 1864 (Levi, 1985a: 454)
Micrathena luctuosa (Taczanowski, 1873) = Micrathena pungens Walckenaer, 1841 (Chickering, 1960d: 85)
Micrathena macilenta Chickering, 1961 = Micrathena duodecimspinosa O. Pickard-Cambridge, 1890 (Levi, 1985a: 506)
Micrathena maculata (Banks, 1900) = Micrathena funebris Marx, 1898 (Levi, 1978a: 426)
Micrathena mansueta Chickering, 1960 = Micrathena brevispina Keyserling, 1864 (Levi, 1985a: 522)
Micrathena maronica (Taczanowski, 1873) = Micrathena plana C. L. Koch, 1836 (Levi, 1985a: 509)
Micrathena mastonota Mello-Leitão, 1940 = Micrathena horrida Taczanowski, 1873 (Magalhaes & Santos, 2011b: 48)
Micrathena mathani Simon, 1897 = Micrathena triangularispinosa De Geer, 1778 (Levi, 1985a: 537)
Micrathena melloleitaoi Archer, 1971 = Micrathena macfarlanei Chickering, 1961 (Levi, 1985a: 498)
Micrathena miles nigra Caporiacco, 1948 = Micrathena miles Simon, 1895 (Levi, 1985a: 482)
Micrathena minima (Mello-Leitão, 1948) = Micrathena abrahami Mello-Leitão, 1948 (Levi, 1985a: 608, sub Chaetacis)
Micrathena mirifica Chickering, 1961 = Micrathena excavata C. L. Koch, 1836 (Levi, 1985a: 516)
Micrathena misionesica (Mello-Leitão, 1945) = Micrathena spitzi Mello-Leitão, 1932 (Levi, 1985a: 550)
Micrathena modica Chickering, 1961 = Micrathena quadriserrata F. O. Pickard-Cambridge, 1904 (Levi, 1985a: 518)
Micrathena mourei (Mello-Leitão, 1945) = Micrathena saccata C. L. Koch, 1836 (Scharff, 1991: 155)
Micrathena multituberculata Caporiacco, 1947 = Micrathena horrida Taczanowski, 1873 (Levi, 1985a: 596)
Micrathena munsonae Archer, 1971 = Micrathena triangularispinosa De Geer, 1778 (Levi, 1985a: 537)
Micrathena mutilloides (Simon, 1895) = Micrathena vigorsi Perty, 1833 (Levi, 1985a: 557)
Micrathena myrmeciaeformis (Taczanowski, 1872) = Micrathena schreibersi Perty, 1833 (Levi, 1985a: 554)
Micrathena nigrior Chamberlin & Ivie, 1936 = Micrathena gracilis Walckenaer, 1805 (Chickering, 1961a: 421)
Micrathena nitida Chickering, 1964 = Micrathena plana C. L. Koch, 1836 (Levi, 1985a: 509)
Micrathena occidentalis (Taczanowski, 1879) = Micrathena lucasi Keyserling, 1864 (Levi, 1985a: 496)
Micrathena ornata Mello-Leitão, 1932 = Micrathena plana C. L. Koch, 1836 (Magalhaes & Santos, 2011b: 48)
Micrathena patruelis alba Franganillo, 1930 = Micrathena cubana Banks, 1909 (Levi, 1985a: 491)
Micrathena patruelis luteomaculata Strand, 1908 = Micrathena mitrata Hentz, 1850 (Levi, 1985a: 486)
Micrathena patruelis mediovittata Strand, 1908 = Micrathena mitrata Hentz, 1850 (Levi, 1985a: 486)
Micrathena patruelis rufa Franganillo, 1930 = Micrathena cubana Banks, 1909 (Levi, 1985a: 491)
Micrathena perlata Simon, 1895 = Micrathena spinosa Linnaeus, 1758 (Levi, 1985a: 581)
Micrathena peruana (Taczanowski, 1879) = Micrathena mitrata Hentz, 1850 (Levi, 1985a: 486)
Micrathena petersi (Taczanowski, 1872) = Micrathena sexspinosa Hahn, 1822 (Levi, 1985a: 585)
Micrathena pfannli Reimoser, 1917 = Micrathena furva Keyserling, 1892 (Levi, 1985a: 476)
Micrathena pilosa (Taczanowski, 1873) = Micrathena triangularis C. L. Koch, 1836 (Levi, 1985a: 512)
Micrathena planata Chamberlin & Ivie, 1936 = Micrathena clypeata Walckenaer, 1805 (Mello-Leitão, 1940c: 176)
Micrathena praeterita Chickering, 1964 = Micrathena schenkeli Mello-Leitão, 1939 (Levi, 1985a: 539)
Micrathena pubescens Simon, 1895 = Micrathena furcula O. Pickard-Cambridge, 1890 (Levi, 1985a: 483)
Micrathena racemina (Butler, 1873) = Micrathena horrida Taczanowski, 1873 (Levi, 1985a: 596)
Micrathena reduviana (Walckenaer, 1841, removed from S of M. patruelis) = Micrathena gracilis Walckenaer, 1805 (Levi, 1978a: 433)
Micrathena reduviana alba Franganillo, 1930 = Micrathena cubana Banks, 1909 (Levi, 1985a: 491)
Micrathena reduviana rufa Franganillo, 1936 = Micrathena cubana Banks, 1909 (Levi, 1985a: 491)
Micrathena retracta Chamberlin & Ivie, 1936 = Micrathena saccata C. L. Koch, 1836 (Levi, 1985a: 490, contra Chickering, 1961: 445)
Micrathena rouxi (Mello-Leitão, 1939, T from Chaetacis) = Micrathena quadriserrata F. O. Pickard-Cambridge, 1904 (Levi, 1985a: 518)
Micrathena rubrocincta (Butler, 1873) = Micrathena rufopunctata Butler, 1873 (Levi, 1985a: 486)
Micrathena rubrospinosa (Keyserling, 1892) = Micrathena brevispina Keyserling, 1864 (Levi, 1985a: 522)
Micrathena rufa (Taczanowski, 1873, removed from S of M. spinosa) = Micrathena triangularispinosa De Geer, 1778 (Levi, 1985a: 537)
Micrathena rugosa (Chickering, 1960) = Micrathena picta C. L. Koch, 1836 (Levi, 1985a: 609, sub Chaetacis)
Micrathena sagittata emertoni Archer, 1951 = Micrathena sagittata Walckenaer, 1841 (Levi, 1978a: 432)
Micrathena sedes (Gétaz, 1893, removed from S of M. sexspinosa) = Micrathena brevipes O. Pickard-Cambridge, 1890 (Levi, 1985a: 578)
Micrathena serrata F. O. Pickard-Cambridge, 1904 = Micrathena parallela O. Pickard-Cambridge, 1890 (Levi, 1985a: 508)
Micrathena silvicola Badcock, 1932 = Micrathena swainsoni Perty, 1833 (Mello-Leitão, 1946b: 39)
Micrathena simoni Petrunkevitch, 1910 = Micrathena horrida Taczanowski, 1873 (Levi, 1985a: 596)
Micrathena sordida (Taczanowski, 1873) = Micrathena triangularis C. L. Koch, 1836 (Levi, 1985a: 512)
Micrathena subflava Chickering, 1961 = Micrathena excavata C. L. Koch, 1836 (Levi, 1985a: 516)
Micrathena subspinosa F. O. Pickard-Cambridge, 1904 = Micrathena duodecimspinosa O. Pickard-Cambridge, 1890 (Levi, 1985a: 506)
Micrathena subtilis (Taczanowski, 1873) = Micrathena schreibersi Perty, 1833 (Levi, 1985a: 555)
Micrathena tenuis (Taczanowski, 1873) = Micrathena schreibersi Perty, 1833 (Levi, 1985a: 555)
Micrathena tigris Mello-Leitão, 1932 = Micrathena fissispina C. L. Koch, 1836 (Levi, 1985a: 478)
Micrathena timida Caporiacco, 1947 = Micrathena saccata C. L. Koch, 1836 (Levi, 1985a: 490)
Micrathena tovarensis Simon, 1897 = Micrathena crassa Keyserling, 1864 (Levi, 1985a: 474)
Micrathena trapa (Gétaz, 1893) = Micrathena lucasi Keyserling, 1864 (Levi, 1985a: 496)
Micrathena tuberculata (Chickering, 1960) = Micrathena abrahami Mello-Leitão, 1948 (Levi, 1985a: 608, sub Chaetacis)
Micrathena tucumana Simon, 1897 = Micrathena furva Keyserling, 1892 (Levi, 1985a: 476)
Micrathena uncata F. O. Pickard-Cambridge, 1904 = Micrathena quadriserrata F. O. Pickard-Cambridge, 1904 (Levi, 1985a: 518)
Micrathena vespoides (Walckenaer, 1841) = Micrathena schreibersi Perty, 1833 (Levi, 1985a: 554)
Micrathena vitiosa (O. Pickard-Cambridge, 1890) = Micrathena flaveola Perty, 1839 (Levi, 1985a: 544)
Micrathena xanthopyga Simon, 1895 = Micrathena crassa Keyserling, 1864 (Levi, 1985a: 474)
Homonym replaced:
Micrathena parallela Mello-Leitão, 1940 -- see Micrathena sanctispiritus Brignoli, 1983
Nomina dubia:
Micrathena bisicata (Walckenaer, 1841: 192, f, Brazil, originally in Plectana) -- Levi, 1985a: 446
Micrathena incisa (Walckenaer, 1841: 195, f, Brazil, originally in Plectana) -- Magalhaes & Santos, 2011b: 54, sub Chaetacis
Nomina nuda:
Micrathena caurensis González-Sponga, 2009b: 27 (Venezuela) [urn:lsid:nmbe.ch:spidersp:050039], per Foghin 2009: 192, but description not published -- González-Sponga, 2009b
Micrathena grandis González-Sponga, 2009b: 29 (Venezuela) [urn:lsid:nmbe.ch:spidersp:050040], per Foghin 2009: 192, but description not published -- González-Sponga, 2009b
Micrathena iguanensis González-Sponga, 2009b: 31 (Venezuela) [urn:lsid:nmbe.ch:spidersp:050041], per Foghin 2009: 192, but description not published -- González-Sponga, 2009b
Micrathena suapurensis González-Sponga, 2009b: 33 (Venezuela) [urn:lsid:nmbe.ch:spidersp:050042], per Foghin 2009: 192, but description not published -- González-Sponga, 2009b
Micrathena supamoensis González-Sponga, 2009b: 35 (Venezuela) [urn:lsid:nmbe.ch:spidersp:050043], per Foghin 2009: 192, but description not published -- González-Sponga, 2009b
Micrathena venezuelensis González-Sponga, 2009b: 37 (Venezuela) [urn:lsid:nmbe.ch:spidersp:050044], per Foghin 2009: 193, but description not published -- González-Sponga, 2009b