| Name | Microthelys rubrocalosa (B. L. Robinson & Greenman) Garay |
| Authorship | (B. L. Robinson & Greenman) Garay |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Microthelys |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Microthelys rubrocalosa (B. L. Robinson & Greenman) Garay |
| Identification made in | [no date] (5), 1965 (1), 1982 (1) |