| Scientific Name | Authority | Status |
|---|---|---|
| Arachnis | Blume | accepted |
| Arachnis hookeriana | (Rchb.f.) Rchb.f. | accepted |
| Arachnis labrosa | (Lindl. & Paxton) Rchb.f. | accepted |
| Arachnis grandisepala | J.J.Wood | accepted |
| Arachnis clarkei | (Rchb.f.) J.J.Sm. | accepted |
| Arachnis siamensis | (Schltr.) Tang & F.T.Wang | accepted |
| Arachnis senapatiana | (Phukan & A.A.Mao) Kocyan & Schuit. | accepted |
| Arachnis bella | (Rchb.f.) J.J.Sm. | accepted |
| Arachnis limax | Seidenf. | accepted |
| Arachnis calcarata | Holttum | accepted |
| Arachnis longisepala | (J.J.Wood) Shim & A.Lamb | accepted |
| Arachnis flos-aeris | (L.) Rchb.f. | accepted |
| Arachnis annamensis | (Rolfe) J.J.Sm. | accepted |
| Arachnis sulingi | (Blume) Rchb.f. | accepted |
| Arachnis cathcartii | (Lindl.) J.J.Sm. | accepted |
| Arachnis bouffordii | Ormerod | accepted |
| Arachnis canniformis | (Guillaumin) Tang & F.T.Wang | synonym |
| Arachnis alba | (Ridl.) Schltr. | synonym |
| Arachnis labrosa f. zhaoi | (Z.J.Liu, S.C.Chen & S.P.Lei) O.Gruss & N.H.Tuan | accepted |
| Arachnis labrosa f. labrosa | accepted | |
| Arachnis calcarata ssp. longisepala | J.J.Wood | synonym |
| Arachnis moschifera | Blume | synonym |
| Arachnis flos-aeris var. gracilis | Holttum | synonym |
| Arachnis evrardii | (Guillaumin) Tang & F.T.Wang | synonym |
| Arachnis philippinensis | Ames | synonym |
| Arachnis lowii | (Lindl.) Rchb.f. | synonym |
| Arachnis longicaulis f. flavescens | Valmayor & D.Tiu | synonym |
| Arachnis lyonii | Ames | synonym |
| Arachnis breviscapa | (J.J.Sm.) J.J.Sm. | synonym |
| Arachnis seramensis | (Ormerod) R.Rice | synonym |
| Arachnis beccarii | Rchb.f. | synonym |
| Arachnis rohaniana | (Rchb.f.) Rchb.f. | synonym |
| Arachnis celebica | (Schltr.) J.J.Sm. | synonym |
| Arachnis longicaulis | (Schltr.) L.O.Williams | synonym |
| Arachnis zhaoi | Z.J.Liu, S.C.Chen & S.P.Lei | synonym |
| Arachnis labrosa var. zhaoi | (Z.J.Liu, S.C.Chen & S.P.Lei) S.C.Chen & J.J.Wood | synonym |
| Arachnis bilinguis | Benth. | synonym |
| Arachnis muelleri | (Kraenzl.) J.J.Sm. | synonym |
| Arachnis beccarii var. imthurnii | (Rolfe) K.W.Tan | synonym |
| Arachnis imthurnii | (Rolfe) L.O.Williams | synonym |
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