Cortinarius melleicarneus Kytöv., Liimat., Niskanen & Brandrud (2014 Thaxterogaster melleicarneus is a species of fungus in the family Cortinariaceae.

It was placed in the subgenus Phlegmacium of the large mushroom genus Cortinarius.

[2] In 2022 the species was transferred from Cortinarius and reclassified as Thaxterogaster melleicarneus based on genomic data.

[3] The specific epithet melleicarneus refers to the honey colored cap.

[2] Found in Estonia and Norway, where it grows on the ground in association with thermophilous deciduous trees.