Caloboletus is a fungal genus in the family Boletaceae. It was circumscribed by Italian mycologist Alfredo Vizzini with Caloboletus calopus as the type species. The erection of Caloboletus follows recent molecular studies that outlined a new phylogenetic framework for the Boletaceae. Boletus peckii was also transferred to this genus by Vizzini, but was subsequently moved to the genus Butyriboletus based on molecular evidence. The generic name Caloboletus, derived from the Greek calos "nice", refers to the attractive red coloring of the stipe.
, Index Fungorum lists the following species:
| Image | Name | Taxon Author | Year | Distribution | |
|---|---|---|---|---|---|
| Caloboletus calopus | (Pers.) Vizzini | 2014 | Pacific Northwest and Michigan, Europe | ||
| Caloboletus conifericola | Vizzini | 2014 | Washington, Oregon, Alaska, British Columbia | ||
| Caloboletus firmus | (Frost) Vizzini | 2014 | New England | ||
| Caloboletus frustosus | (Snell & E.A. Dick) D. Arora & J.L. Frank | 2014 | British Columbia, California, Oregon, Washington | ||
| Caloboletus guanyui | N.K. Zeng, H. Chai & S. Jiang | 2019 | China (Hainan, Fujian)[1] | ||
| Caloboletus inedulis | (Murrill) Vizzini | 2014 | North America | ||
| Caloboletus kluzakii | (Šutara & Špinar) Vizzini | 2014 | Czech Republic | ||
| Caloboletus marshii | D. Arora, C.F. Schwarz & J.L. Frank | 2014 | United States | ||
| Caloboletus panniformis | (Taneyama & Har. Takah.) Vizzini | 2014 | Japan, China | ||
| Caloboletus polygonius | (A.E. Hills & Vassiliades) Vizzini | 2014 | Greece | ||
| Caloboletus radicans | (Pers.) Vizzini | 2014 | Europe | ||
| Caloboletus roseipes | (Bessette, Both & A.R. Bessette) Vizzini | 2014 | North America | ||
| Caloboletus roseo-olivaceus | (J. Blum) N. Schwab | 2019 | Europe | ||
| Caloboletus rubripes | (Thiers) Vizzini | 2014 | California | ||
| Caloboletus taienus | (W.F. Chiu) Ming Zhang & T.H. Li | 2017 | China (Guangdong) | ||
| Caloboletus xiangtoushanensis | Ming Zhang, T.H. Li & X.J. Zhong | 2017 | China (Guangdong, Fujian) | ||
| Caloboletus yunnanensis | Kuan Zhao & Zhu L. Yang | 2014 | China (Yunnan) |