The jigongshanica species-group
Diagnosis. Forewing length 6.5–10.0 mm, with the ratio of length to maximum width 2.8–3.2. Moths of the jigongshanica species-group share a dark forewing without or with ill-defined black discal, discocellular and plical dots; in the male genitalia, the uncus is sub-triangular, the gnathos is absent, the transtilla is absent, and the sacculus is separated from the valva distally. No distinctive characters are found in the female genitalia that can separate species of this group from those of some other groups in this study.
The jigongshanica species-group includes two known species, M. cornutivalvata (Wang, 2003) and M. jigongshanica (Wang, 2003) . Two new species are described below.