Krumbachia exigua (Dorner, 1902) Ruebush, 1938 accepted as Olisthanella exigua (Dorner, 1902) Luther, 1904 (new combination reference)
Krumbachia hungarica (Gelei, 1907) Ruebush, 1938 (new combination reference)
Krumbachia minuta Ruebush, 1938 (original description)
Krumbachia opaca (Nasonov, 1923) Ruebush, 1938 accepted as Typhloplanella opaca Nasonov, 1923 (new combination reference)
Krumbachia opistomiformis (Nasonov, 1924) Ruebush, 1938 accepted as Olisthanella opistomiformis Nasonov, 1924 (new combination reference)
Krumbachia palmeni Nasonov, 1917 accepted as Olisthanella palmeni Nasonov, 1917 (new combination reference)
Krumbachia palmeni rhynchocephala Beklemischev, 1921 accepted as Olisthanella palmeni rhynchocephala Beklemischev, 1921 accepted as Olisthanella palmeni Nasonov, 1917 (new combination reference)
Krumbachia virginiana (Kepner & Carter, 1931) Ruebush, 1938 (new combination reference)
Olisthanella nassonoffii (Graff, 1882) Luther, 1904 accepted as Olisthanella truncula nassonoffii (Graff, 1882) Luther, 1904 (status source)
Olisthanella splendida (Graff, 1882) Luther, 1904 accepted as Olisthanella truncula splendida (Graff, 1882) Luther, 1904 accepted as Olisthanella truncula (Schmidt, 1858) Voigt, 1892 (source of synonymy)

Virginia for Krumbachia minuta Ruebush, 1938