X. Gyrophaena (Gyrophaena) pulchella species group

14. Gyrophaena (Gyrophaena) antennalis Casey, 1906: 295 (CANADA: New Brunswick; UNITED STATES: Massachusetts, New York, and North Carolina) .

15. Gyrophaena (Gyrophaena) chippewa Seevers, 1951: 705 (CANADA: New Brunswick; UNITED STATES: Michigan, North Carolina, and Wisconsin) .

16. Gyrophaena (Gyrophaena) insolens Casey, 1906: 295 (CANADA: British Columbia, New Brunswick, and Ontario; UNITED STATES: Michigan) .

17. Gyrophaena (Gyrophaena) criddlei Casey, 1911: 184 (CANADA: Manitoba and New Brunswick).

18. Gyrophaena (Gyrophaena) pseudocriddlei Klimaszewski & Webster, sp. n. (CANADA: New Brunswick).

19. Gyrophaena (Gyrophaena) gilvicollis Casey, 1906, 296 (CANADA: Ontario [uncertain record by Campbell and Davies 1991] and New Brunswick; UNITED STATES: District of Columbia, Indiana, Michigan, New York, Pennsylvania, Virginia, and West Virginia).

20. Gyrophaena (Gyrophaena) modesta Casey, 1906: 296 (CANADA: New Brunswick; UNITED STATES: Illinois, Indiana, Michigan, Minnesota, New Hampshire, and New York) .

XI. Gyrophaena (Gyrophaena) fuscicollis species group 21. Gyropheana (Gyrophaena) fuscicollis Casey, 1906: 296; Seevers 1951: 712 (CANADA: New Brunswick; UNITED STATES: District of Columbia, Illinois, New York, Pennsylvania, and Wisconsin) .

XII. Gyrophaena (Gyrophaena) vitrina species group 22. Gyrophaena (Gyrophaena) vitrina Casey, 1906: 291 (CANADA: New Brunswick, Ontario, and Quebec; UNITED STATES: Illinois, Indiana, Kentucky, Maine, Michigan, New York, North Carolina, Pennsylvania, Tennessee, West Virginia, and Wisconsin). Gyrophaena attonsa Casey, 1911: 184 .