| belgium | | butyriboletus pseudoregius | species | 19 | 0 |
| czech republic | | butyriboletus pseudoregius | species | 3 | 0 |
| italy | | butyriboletus pseudoregius | species | 1 | 0 |
| japan | | butyriboletus pseudoregius | species | 1 | 0 |
| portugal | | butyriboletus pseudoregius | species | 1 | 0 |
| spain | castile and leon | butyriboletus pseudoregius | species | 411 | 0 |