Theridion positivum Chamberlin, 1924
| Expedition of the California Academy of Sciences to the Gulf of California in 1921. The spider fauna of the shores and islands of the Gulf of California Ralph V Chamberlin (1924) Proceedings of the California Academy of Sciences 12: 561-694 | |
| The spider genera Achaearanea, Theridion and Sphyrotinus from Mexico, Central America and the West Indies (Araneae, Theridiidae) H W Levi (1959) Bulletin of The Museum of Comparative Zoology 121: 55-163 | |
| The spider genera Achaearanea, Theridion and Sphyrotinus from Mexico, Central America and the West Indies (Araneae, Theridiidae) H W Levi (1959) Bull. Mus. comp. Zool. Harv. 121: 57-163 | |
| American spiders of the genus Theridion (Araneae, Theridiidae) H W Levi (1963) Bull. Mus. comp. Zool. Harv. 129: 481-589 |