Pachygrontha nigriventris Reuter, 1881a: 157 (syn. Horváth, 1889b: 326, with antennata; restored by Bergroth, 1917b: 4; downgraded to subspecies by J.A. Slater, 1955: 75). STS: male, female, Russia (FE), Amur; NHRS, MZHF. No lectotype designated (see J.A. Slater, 1955: 75).
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