Atheta (Dimetrota) weisei Bernhauer, 1907
(Fig. 8H)
Remarks. Atheta (Dimetrota) weisei was recorded by Paśnik (2001) for the first time in North Korea and by Cho et al. (2002) for the first time in South Korea. But, a habitus photograph of A. (D.) weisei provided by the paper of Cho et al. is incorrect identification of Gyrophaena species.
While studying Korean Athetini, we found that this species is similar to Atheta (Tetropla) nigritula Gravenhorst (1802) . After studying the syntype of A. (D.) weisei and the lectotype of A. (T.) nigritula, we suspect that the character difference between these two species is insufficient to separate as different species. However, a more thorough comparative study including minute characters of specimens from broader distributional areas should be conducted to propose a synonym, A. (D.) weisei under A. (T.) nigritula . Almost Korean specimens were found on mushrooms and some were collected from FIT or bait trap.