This page lists all described species of the spider family Araneidae as of Dec. 20, 2016, that start with the letter A.

Acacesia Acacesia Simon, 1895 Acacesia benigna Glueck, 1994 — Peru, Bolivia, Brazil Acacesia graciosa Lise & Braul, 1996 — Brazil Acacesia hamata (Hentz, 1847) (type species) — USA to Argentina Acacesia tenella (L. Koch, 1871) — Mexico to Brazil, French Guiana, Guyana Acacesia villalobosi Glueck, 1994 — Brazil Acacesia yacuiensis Glueck, 1994 — Brazil, Argentina

Acantharachne Acantharachne Tullgren, 1910 Acantharachne cornuta Tullgren, 1910 (type species) — East Africa Acantharachne giltayi Lessert, 1938 — Congo, Madagascar Acantharachne lesserti Giltay, 1930 — Congo Acantharachne madecassa Emerit, 2000 — Madagascar Acantharachne milloti Emerit, 2000 — Madagascar Acantharachne psyche Strand, 1913 — Central Africa Acantharachne regalis Hirst, 1925 — Cameroon, Congo Acantharachne seydeli Giltay, 1935 — Congo

Acanthepeira Acanthepeira Marx, 1883 Acanthepeira cherokee Levi, 1976 — USA Acanthepeira labidura (Mello-Leitao, 1943) — Brazil Acanthepeira marion Levi, 1976 — USA, Mexico Acanthepeira stellata (Walckenaer, 1805) (type species) — Canada to Mexico Acanthepeira venusta (Banks, 1896) — USA, Cuba, Hispaniola

Acroaspis Acroaspis Karsch, 1878 Acroaspis decorosa (Urquhart, 1894) — New Zealand Acroaspis olorina Karsch, 1878 (type species) — Western Australia, New South Wales Acroaspis tuberculifera Thorell, 1881 — Queensland

Acrosomoides Acrosomoides Simon, 1887 Acrosomoides acrosomoides (O. P.-Cambridge, 1879) — Madagascar Acrosomoides linnaei (Walckenaer, 1841) (type species) — West, Central, East Africa Acrosomoides tetraedrus (Walckenaer, 1841) — Cameroon, Congo

Actinacantha Actinacantha Simon, 1864 Actinacantha globulata (Walckenaer, 1841) — Sumatra, Java

Actinosoma Actinosoma Holmberg, 1883 Actinosoma pentacanthum (Walckenaer, 1841) — Colombia to Argentina

Aculepeira Aculepeira Chamberlin & Ivie, 1942 Aculepeira aculifera (O. P.-Cambridge, 1889) — USA to Guatemala Aculepeira albovittata (Mello-Leitao, 1941) — Paraguay, Argentina Aculepeira angeloi Álvares, Loyola & De Maria, 2005 — Brazil Aculepeira apa Levi, 1991 — Paraguay Aculepeira armida (Audouin, 1826) — Palearctic Aculepeira armida orientalis (Kulczynski, 1901) — Russia, China Aculepeira armida pumila (Simon, 1929) — France Aculepeira azul Levi, 1991 — Panama Aculepeira busu Levi, 1991 — Hispaniola Aculepeira carbonaria (L. Koch, 1869) — Palearctic Aculepeira carbonaria sinensis (Schenkel, 1953) — China Aculepeira carbonarioides (Keyserling, 1892) — USA, Canada, Alaska, Russia Aculepeira ceropegia (Walckenaer, 1802) — Palearctic Aculepeira escazu Levi, 1991 — Costa Rica Aculepeira gravabilis (O. P.-Cambridge, 1889) — Honduras to Panama Aculepeira lapponica (Holm, 1945) — Sweden, Finland, Russia Aculepeira luosangensis Yin et al., 1990 — China Aculepeira machu Levi, 1991 — Peru Aculepeira matsudae Tanikawa, 1994 — Japan Aculepeira morenoae Rubio, Izquierdo & Piacentini, 2013 — Argentina Aculepeira packardi (Thorell, 1875) (type species) — North America, Russia, China, Kazakhstan Aculepeira serpentina Guo & Zhang, 2010 — China Aculepeira taibaishanensis Zhu & Wang, 1995 — China Aculepeira talishia (Zawadsky, 1902) — Turkey, Russia, Georgia, Azerbaijan Aculepeira travassosi (Soares & Camargo, 1948) — Mexico to Argentina Aculepeira visite Levi, 1991 — Hispaniola Aculepeira vittata (Gerschman & Schiapelli, 1948) — Brazil, Paraguay, Argentina

Acusilas Acusilas Simon, 1895 Acusilas africanus Simon, 1895 — West, Central, East Africa Acusilas callidus Schmidt & Scharff, 2008 — Sulawesi Acusilas coccineus Simon, 1895 (type species) — China to Moluccas Acusilas dahoneus Barrion & Litsinger, 1995 — Philippines Acusilas lepidus (Thorell, 1898) — Myanmar Acusilas malaccensis Murphy & Murphy, 1983 — Thailand, Laos, Malaysia, Sumatra, Borneo Acusilas spiralis Schmidt & Scharff, 2008 — Sumatra Acusilas vei Schmidt & Scharff, 2008 — Sulawesi Acusilas vilei Schmidt & Scharff, 2008 — Sulawesi

Aethriscus Aethriscus Pocock, 1902 Aethriscus olivaceus Pocock, 1902 (type species) — Congo Aethriscus pani Lessert, 1930 — Congo

Aethrodiscus Aethrodiscus Strand, 1913 Aethrodiscus transversalis Strand, 1913 — Central Africa

Aetrocantha Aetrocantha Karsch, 1879 Aetrocantha falkensteini Karsch, 1879 — West, Central Africa

Afracantha Afracantha Dahl, 1914 Afracantha camerunensis (Thorell, 1899) — West, Central, East Africa, Venezuela

Agalenatea Agalenatea Archer, 1951 Agalenatea liriope (L. Koch, 1875) — Ethiopia, Yemen Agalenatea redii (Scopoli, 1763) (type species) — Palearctic

Alenatea Alenatea Song & Zhu, 1999 Alenatea fuscocolorata (Bösenberg & Strand, 1906) (type species) — China, Korea, Taiwan, Japan Alenatea touxie Song & Zhu, 1999 — China Alenatea wangi Zhu & Song, 1999 — China

Allocyclosa Allocyclosa Levi, 1999 Allocyclosa bifurca (McCook, 1887) — USA to Panama, Cuba, Hispaniola

Alpaida Alpaida O. P.-Cambridge, 1889 Alpaida acuta (Keyserling, 1865) — Panama to Argentina Alpaida albocincta (Mello-Leitao, 1945) — Venezuela to Argentina Alpaida almada Levi, 1988 — Brazil Alpaida alticeps (Keyserling, 1879) — Brazil, Paraguay Alpaida alto Levi, 1988 — Paraguay Alpaida alvarengai Levi, 1988 — Brazil Alpaida amambay Levi, 1988 — Colombia, Paraguay Alpaida anchicaya Levi, 1988 — Colombia Alpaida angra Levi, 1988 — Brazil Alpaida antonio Levi, 1988 — Brazil, Guyana Alpaida arvoredo Buckup & Rodrigues, 2011 — Brazil Alpaida atomaria (Simon, 1895) — Brazil Alpaida banos Levi, 1988 — Colombia, Ecuador Alpaida biasii Levi, 1988 — Brazil Alpaida bicornuta (Taczanowski, 1878) — Costa Rica to Argentina Alpaida bischoffi Levi, 1988 — Brazil Alpaida boa Levi, 1988 — Brazil Alpaida boraceia Levi, 1988 — Brazil Alpaida cachimbo Levi, 1988 — Brazil Alpaida cali Levi, 1988 — Colombia Alpaida calotypa (Chamberlin, 1916) — Peru Alpaida canela Levi, 1988 — Brazil Alpaida canoa Levi, 1988 — Brazil Alpaida caramba Buckup & Rodrigues, 2011 — Brazil Alpaida carminea (Taczanowski, 1878) — Peru, Brazil, Paraguay, Argentina Alpaida caxias Levi, 1988 — Brazil Alpaida chaco Levi, 1988 — Paraguay Alpaida championi (O. P.-Cambridge, 1889) — Guatemala to Colombia Alpaida chapada Levi, 1988 — Brazil Alpaida chickeringi Levi, 1988 — Panama to Brazil Alpaida cisneros Levi, 1988 — Colombia, Ecuador Alpaida citrina (Keyserling, 1892) — Brazil Alpaida clarindoi Nogueira & Dias, 2015 - Brazil Alpaida conica O. P.-Cambridge, 1889 (type species) — Panama Alpaida constant Levi, 1988 — Brazil Alpaida coroico Levi, 1988 — Bolivia Alpaida costai Levi, 1988 — Argentina Alpaida cuiaba Levi, 1988 — Brazil Alpaida cuyabeno Levi, 1988 — Colombia, Ecuador Alpaida darlingtoni Levi, 1988 — Colombia Alpaida deborae Levi, 1988 — Brazil, Suriname, French Guiana Alpaida delicata (Keyserling, 1892) — Colombia, Peru, Bolivia, Brazil Alpaida dominica Levi, 1988 — Lesser Antilles Alpaida eberhardi Levi, 1988 — Colombia Alpaida elegantula (Archer, 1965) — Martinique Alpaida ericae Levi, 1988 — Brazil, Argentina Alpaida erythrothorax (Taczanowski, 1873) — French Guiana Alpaida gallardoi Levi, 1988 — Brazil, Paraguay, Argentina Alpaida gracia Levi, 1988 — Argentina Alpaida graphica (O. P.-Cambridge, 1889) — Mexico to Panama Alpaida grayi (Blackwall, 1863) — Brazil, Paraguay, Uruguay, Argentina Alpaida guimaraes Levi, 1988 — Brazil, Guyana Alpaida gurupi Levi, 1988 — Colombia, Brazil Alpaida guto Abrahim & Bonaldo, 2008 — Brazil Alpaida haligera (Archer, 1971) — Peru, Venezuela Alpaida hartliebi Levi, 1988 — Brazil Alpaida hoffmanni Levi, 1988 — Brazil, Paraguay Alpaida holmbergi Levi, 1988 — Argentina Alpaida iguazu Levi, 1988 — Brazil, Argentina Alpaida iquitos Levi, 1988 — Peru, Ecuador, Brazil Alpaida itacolomi Santos & Santos, 2010 — Brazil Alpaida itapua Levi, 1988 — Paraguay Alpaida itauba Levi, 1988 — Brazil, Argentina Alpaida jacaranda Levi, 1988 — Brazil Alpaida kartabo Levi, 1988 — Guyana Alpaida keyserlingi Levi, 1988 — Brazil Alpaida kochalkai Levi, 1988 — Colombia Alpaida lanei Levi, 1988 — Brazil, Argentina Alpaida latro (Fabricius, 1775) — Brazil, Uruguay, Paraguay, Argentina Alpaida leucogramma (White, 1841) — Panama to Argentina Alpaida levii Saturnino, Rodrigues & Bonaldo, 2015 - Brazil Alpaida lomba Levi, 1988 — Brazil Alpaida losamigos Deza & Andía, 2014 - Peru Alpaida lubinae Levi, 1988 — Venezuela Alpaida machala Levi, 1988 — Ecuador Alpaida madeira Levi, 1988 — Brazil Alpaida manicata Levi, 1988 — Colombia, Brazil Alpaida marmorata (Taczanowski, 1873) — Ecuador, Peru, French Guiana Alpaida marta Levi, 1988 — Colombia Alpaida mato Levi, 1988 — Brazil Alpaida moata (Chamberlin & Ivie, 1936) — Panama, Colombia Alpaida moka Levi, 1988 — Bolivia Alpaida monzon Levi, 1988 — Peru Alpaida monzon audiberti Dierkens, 2014 - French Guiana Alpaida morro Levi, 1988 — Brazil Alpaida muco Levi, 1988 — Colombia Alpaida murtinho Levi, 1988 — Brazil Alpaida nadleri Levi, 1988 — Venezuela Alpaida nancho Levi, 1988 — Peru Alpaida narino Levi, 1988 — Colombia Alpaida natal Levi, 1988 — Brazil Alpaida navicula (L. Koch, 1871) — Brazil Alpaida negro Levi, 1988 — Colombia, Brazil Alpaida nigrofrenata (Simon, 1895) — Brazil Alpaida niveosigillata (Mello-Leitao, 1941) — Colombia, Ecuador Alpaida nonoai Levi, 1988 — Brazil Alpaida octolobata Levi, 1988 — Brazil, Argentina Alpaida oliverioi (Soares & Camargo, 1948) — Brazil Alpaida orgaos Levi, 1988 — Brazil Alpaida oyapockensis Dierkens, 2014 - French Guiana Alpaida pedro Levi, 1988 — Brazil Alpaida penca Deza & Andía, 2014 - Peru Alpaida picchu Levi, 1988 — Peru Alpaida quadrilorata (Simon, 1897) — Brazil, Paraguay, Uruguay, Argentina Alpaida queremal Levi, 1988 — Colombia Alpaida rioja Levi, 1988 — Brazil, Argentina Alpaida rosa Levi, 1988 — Brazil, Argentina Alpaida rossi Levi, 1988 — Peru Alpaida rostratula (Keyserling, 1892) — Brazil, Argentina Alpaida rubellula (Keyserling, 1892) — Brazil, Paraguay, Argentina Alpaida sandrei (Simon, 1895) — Brazil Alpaida santosi Levi, 1988 — Brazil Alpaida schneblei Levi, 1988 — Colombia Alpaida scriba (Mello-Leitao, 1940) — Brazil Alpaida septemmammata (O. P.-Cambridge, 1889) — Mexico to Argentina Alpaida sevilla Levi, 1988 — Colombia Alpaida silencio Levi, 1988 — Colombia Alpaida simla Levi, 1988 — Trinidad Alpaida sobradinho Levi, 1988 — Brazil Alpaida sulphurea (Taczanowski, 1873) — French Guiana Alpaida sumare Levi, 1988 — Brazil Alpaida tabula (Simon, 1895) — Guyana to Bolivia Alpaida tayos Levi, 1988 — Ecuador, Peru, Brazil, Guyana Alpaida teresinha Braga-Pereira & Santos, 2013 — Brazil Alpaida thaxteri Levi, 1988 — Trinidad Alpaida tijuca Levi, 1988 — Brazil Alpaida toninho Braga-Pereira & Santos, 2013 — Brazil Alpaida tonze Santos & Santos, 2010 — Brazil Alpaida trilineata (Taczanowski, 1878) — Peru Alpaida trispinosa (Keyserling, 1892) — Panama to Argentina Alpaida truncata (Keyserling, 1865) — Mexico to Argentina Alpaida truncata obscura (Caporiacco, 1948) — Guyana Alpaida truncata sexmaculata (Caporiacco, 1948) — Guyana Alpaida tullgreni (Caporiacco, 1955) — Venezuela Alpaida tuonabo (Chamberlin & Ivie, 1936) — Panama Alpaida urucuca Levi, 1988 — Brazil Alpaida utcuyacu Levi, 1988 — Peru Alpaida utiariti Levi, 1988 — Brazil Alpaida vanzolinii Levi, 1988 — Peru, Brazil, Argentina Alpaida variabilis (Keyserling, 1864) — Colombia Alpaida venger Castanheira & Baptista, 2015 - Brazil Alpaida veniliae (Keyserling, 1865) — Panama to Argentina Alpaida vera Levi, 1988 — Brazil Alpaida versicolor (Keyserling, 1877) — Brazil, Paraguay, Uruguay, Argentina Alpaida wenzeli (Simon, 1897) — St. Vincent Alpaida weyrauchi Levi, 1988 — Peru Alpaida yanayacu Saturnino, Rodrigues & Bonaldo, 2015 - Brazil Alpaida yotoco Levi, 1988 — Colombia