| Name | Herpomyces stilopygae Spegazzini |
| Authorship | Spegazzini |
| Rank | Species |
| Placed in | Herpomyces |
| Citation | 1917 Anales Mus. Nac. Buenos Aires 29: 551, fig. 95 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Herpomyces stilopygae Spegazzini |
| Identification made in | [no date] (1), 2015 (1), 2016 (5) |