Included taxa
Kaston, B. J. (1970). Comparative biology of American black widow spiders. Transactions of the San Diego Society of Natural History 16: 33-82. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Latrodectus hesperus | Theridiidae | 39, f. 11a-h, 13e, f, h (removed mf from S, S of Latrodectus mactans texanus) | Latrodectus hesperus |
| Latrodectus mactans | Theridiidae | 37, f. 2, 12, 13a-d, g, i, k (mf) | Latrodectus mactans |
| Latrodectus variolus | Theridiidae | 38, f. 14a-b, f (mf) | Latrodectus variolus |
Genera
No genus found for this reference