[Aim]  To present the first report of a new pest of Ganoderma lucidum, Leucophenga albiceps. The objectives include clarifying its damage patterns, morphological characteristics, and molecular identification to promote the healthy development of G. lucidum cultivation. [Methods]  The five-point sampling method was used to investigate the damage caused by this pest. Genomic DNA was extracted from specimens collected in the field, and the sequences of the mitochondrial cytochrome oxidase subunitⅠ (COⅠ) were amplified for molecular identification. The neighbor-joining method was used to construct phylogenetic trees. [Results]  The survey results indicate that the pest appears in spring and causes serious damage to G. lucidum in July and August. Multiple generations are produced in a year with significant overlap between generations. Damage in recently invaded woodlands was slight, but became serious in the second year; L. albiceps has become the main pest affecting the yield and quality of G. lucidum in the Chongqing area. The morphology and characteristics of the male genitalia were consistent with those of other members of the genus Leucophenga, and the similarity of the obtained COⅠ sequence (accession number: KP697095.1) to that published for L. albiceps reached 97.5%. The average genetic distance within the species was 0.012. Therefore, both morphological and phylogenetic results indicate that the pest causing damage to G. lucidum was L. albiceps. [Conclusion]  L. albiceps is a newly recorded pest in Chongqing that has not previously been known to damage G. lucidum. These results lay the groundwork for in-depth studies on the occurrence, prevention, and control of this pest.