- family: Nesticidae
- family: Theridiidae
- genus: Achaearanea
- genus: Ameridion
- genus: Anelosimus
- genus: Episinus
- genus: Exalbidion
- genus: Kochiura
- genus: Selkirkiella
- genus: Theridion
- species: Theridion aeolium Levi, 1963
- species: Theridion agrarium Levi, 1963
- species: Theridion agreste Nicolet, 1849
- species: Theridion albolineatum Nicolet, 1849
- species: Theridion altum Levi, 1963
- species: Theridion amarga Levi, 1967
- species: Theridion amatitlan Levi, 1963
- species: Theridion ambiguum Nicolet, 1849
- species: Theridion ampascachi Mello-Leitao, 1941
- species: Theridion antron Levi, 1963
- species: Theridion aporum Levi, 1963
- species: Theridion apostoli Mello-Leitao, 1945
- species: Theridion aragua Levi, 1963
- species: Theridion aulos Levi, 1963
- species: Theridion baltasarense Levi, 1963
- species: Theridion beebei Levi, 1963
- species: Theridion bellatulum Levi, 1963
- species: Theridion bergi Levi, 1963
- species: Theridion biezankoi Levi, 1963
- species: Theridion bolum Levi, 1963
- species: Theridion botanicum Levi, 1963
- species: Theridion calcynatum Holmberg, 1876
- species: Theridion chacoense Levi, 1963
- species: Theridion choroni Levi, 1963
- species: Theridion cochise Levi, 1963
- species: Theridion cochrum Levi, 1963
- species: Theridion cocosense Strand, 1906
- species: Theridion cohni Levi, 1963
- species: Theridion costaricaense Levi, 1963
- species: Theridion cuyutlan Levi, 1963
- species: Theridion dominica Levi, 1963
- species: Theridion ecuadorense Levi, 1963
- species: Theridion eremum Levi, 1963
- species: Theridion exlineae Levi, 1963
- species: Theridion fastosum Keyserling, 1884
- species: Theridion filum Levi, 1963
- species: Theridion frizzellorum Levi, 1963
- species: Theridion fungosum Keyserling, 1886
- species: Theridion glaucescens Becker, 1879
- species: Theridion grandiosum Levi, 1963
- species: Theridion hassleri Levi, 1963
- species: Theridion hispidum O. P.-Cambridge, 1898
- species: Theridion huanuco Levi, 1963
- species: Theridion impegrum Keyserling, 1886
- species: Theridion incertissimum (Caporiacco, 1954)
- species: Theridion iramon Levi, 1963
- species: Theridion isorium Levi, 1963
- species: Theridion lago Levi, 1963
- species: Theridion linaresense Levi, 1963
- species: Theridion longipedatum Roewer, 1942
- species: Theridion machu Levi, 1963
- species: Theridion macuchi Levi, 1963
- species: Theridion maranum Levi, 1963
- species: Theridion maron Levi, 1963
- species: Theridion micheneri Levi, 1963
- species: Theridion minutissimum Keyserling, 1884
- species: Theridion monzonense Levi, 1963
- species: Theridion nesticum Levi, 1963
- species: Theridion nigriceps Keyserling, 1891
- species: Theridion nigroannulatum Keyserling, 1884
- species: Theridion olaup Levi, 1963
- species: Theridion onticolum Levi, 1963
- species: Theridion opolon Levi, 1963
- species: Theridion opuntia Levi, 1963
- species: Theridion osprum Levi, 1963
- species: Theridion oswaldocruzi Levi, 1963
- species: Theridion paraense Levi, 1963
- species: Theridion parvum Keyserling, 1884
- species: Theridion pelaezi Levi, 1963
- species: Theridion pernambucum Levi, 1963
- species: Theridion pigrum Keyserling, 1886
- species: Theridion pires Levi, 1963
- species: Theridion plaumanni Levi, 1963
- species: Theridion positivum Chamberlin, 1924
- species: Theridion rampum Levi, 1963
- species: Theridion ravum Levi, 1963
- species: Theridion rossi Levi, 1963
- species: Theridion rubiginosum Keyserling, 1884
- species: Theridion rubrum (Keyserling, 1886)
- species: Theridion rurrenabaque Levi, 1963
- species: Theridion schlingeri Levi, 1963
- species: Theridion schrammeli Levi, 1963
- species: Theridion senckenbergi Levi, 1963
- species: Theridion soaresi Levi, 1963
- species: Theridion stamotum Levi, 1963
- species: Theridion stannardi Levi, 1963
- species: Theridion striatum Keyserling, 1884
- species: Theridion subrotundum Keyserling, 1891
- species: Theridion tebanum Levi, 1963
- species: Theridion teresae Levi, 1963
- species: Theridion tinctorium Keyserling, 1891
- species: Theridion topo Levi, 1963
- species: Theridion torosum Keyserling, 1884
- species: Theridion tungurahua Levi, 1963
- species: Theridion uber Keyserling, 1884
- species: Theridion umbilicus Levi, 1963
- species: Theridion urucum Levi, 1963
- species: Theridion utcuyacu Levi, 1963
- species: Theridion volubile Keyserling, 1884
- species: Theridion weyrauchi Levi, 1963
- species: Theridion yuma Levi, 1963
- species: Theridion zonarium Keyserling, 1884
- genus: Thymoites
- genus: Wamba