Included taxa
Levi, H. W. (1969). Notes on American theridiid spiders. Psyche, Cambridge 76(1): 68-73. doi:10.1155/1969/15815 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Latrodectus hesperus | Theridiidae | 72 (S, rejected) | Latrodectus variolus |
| Theridion arizonense | Theridiidae | 68, f. 1-4 (f, Dm) | Theridion arizonense |
| Theridion bisignatum | Theridiidae | 70, f. 9-12 (f) | Theridion melanosternum |
| Theridion cochise | Theridiidae | 69, f. 5-8 (m, Df) | Theridion cochise |
| Tidarren haemorrhoidale | Theridiidae | 71 (T from Theridion, S of Tidarren elevatum, T. fordulum, T. minor and T. texanum, all removed from S of T. fordum, rejecting Levi, 1957c: 73) | Tidarren haemorrhoidale |
| Tidarren maculosum | Theridiidae | 71 (probable S of Tidarren fordum = T. haemorrhoidale) | Tidarren maculosum |
| Tidarren sisyphoides | Theridiidae | 72 (S of Tidarren fordum confirmed) | Tidarren sisyphoides |
Genera
No genus found for this reference