| Name | Timonius sinyengiae J. H. Chen & K. M. Wong | 
| Authorship | J. H. Chen & K. M. Wong | 
| Rank | Species | 
| Placed in | Timonius | 
| Citation | 2023 Timonius Borneo 366 | 
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Timonius sinyengiae J. H. Chen & K. M. Wong | 
| Identification made in | [no date] (4) |