| Dalyellia articulata Graff, 1911 | | w | latest taxonomic authority | |
| Dalyellia elongatum (Schmarda, 1859) | | w | latest taxonomic authority | |
| Dalyellia abursalis Ruebush, 1937 | | w | primary taxonomic authority (describer) | 239-243, figs. 1-5 |
| Dalyellia aspinosa Ruebush, 1937 | | w | primary taxonomic authority (describer) | 248-249, f. 12-13 |
| Dalyellia circulobursalis Ruebush, 1937 | | w | primary taxonomic authority (describer) | 243-246, figs. 6-8 |
| Dalyellia virginiana Ruebush, 1937 | | w | primary taxonomic authority (describer) | 246-248, Figs. 9-11 |
| Microdalyellia abursalis (Ruebush, 1937) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Microdalyellia circulobursalis (Ruebush, 1937) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Microdalyellia rossi maxima Ruebush, 1937 | | w | primary taxonomic authority (describer) | |
| Microdalyellia rossi minima Ruebush, 1937 | | w | primary taxonomic authority (describer) | |
| Microdalyellia rossi virginiana (Ruebush, 1937) | | w | primary taxonomic authority (describer) | |
| Microdalyellia virginiana (Ruebush, 1937) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Microdalyellia ruebushi Luther, 1955 | [with synonyms] | w | other taxonomic work | 248-249, f. 12-13 |
| Phaenocora megacephala (Higley, 1918) | [with synonyms] | w | other research on this sp. | 238 |
