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CCDB → Angiosperms → Orchidaceae → Arachnis
| Taxon name | Status | Median (n) |
| Arachnis flos-aeris (L.) Rchb. | Accepted | 19 |
| Arachnis labrosa (Lindl. & Paxton) Rchb. | Accepted | 19 |
| Armodorum labrosum (Lindl. & Paxton) Schltr. | Synonym of Arachnis labrosa (Lindl. & Paxton) Rchb. | 19 |
| Arachnis clarkei (Rchb.) J. J. Sm. | Synonym of Esmeralda clarkei Rchb. | 21 |