| Family | Orchidaceae |
| Subfamily | Orchidoideae |
| Tribe | Diurideae |
| Subtribe | Acianthinae |
| Scientific name | Stigmatodactylus sikokianus Maximovicz ex Makino |
| Synonyms | Pantlingia sikokiana (Maximovicz ex Makino) Rauschert |
| Common name | (Japanese common name) korogi-ran (コオロギラン, 蟋蟀蘭 [meaning: cricket orchid]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Wakayama Prefecture), Shikoku, Kyushu |
| (Other nations) China, Taiwan | |
| Habitat | Japan cedar forest near mountane stream |
| Chromosomal number | unknown |
| Description | Bulbs 2-3mm across. Stems electing 3-10cm tall. Leaves 3-5mm long. Flowers pale green, lip ca. 4mm long, flowering in August to August to September. Terrestrial. Perennial plants. |
| Reference | Stigmatodactylus sikokianus Maxim. ex Makino |
| A phylogenetic analysis of Diurideae (Orchidaceae) based on plastid DNA sequence data | |
| Note | Rare species. |
| September 2009 at Japan cedar forest in Wakayama Prefecture |
September 2009 at Japan cedar forest in Wakayama Prefecture |
September 2009 at Japan cedar forest in Wakayama Prefecture |
| September 2009 at Japan cedar forest in Wakayama Prefecture |
September 2009 at Japan cedar forest in Wakayama Prefecture |