Kaliwatan sa kaka ang Theridion positivum^[1]. Una ning gihulagway ni Chamberlin ni adtong 1924.^[2] Ang Theridion positivum sakop sa kahenera nga Theridion, ug kabanay nga Theridiidae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Tinípong Bángsà

Walay nalista nga matang nga sama niini.^[1]

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 54091090. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Chamberlin, R. V. (1924) The spider fauna of the shores and islands of the Gulf of California , Proceedings of the California Academy of Sciences 12: 561-694
3. ↑ Kropf C., Nentwig W., Blick T. & Gloor D. (organizing board). (2019). WSC: World Spider Catalog (version 19.5, Jan 2019). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.