Caraphractus cinctus Walker, 1846

Caraphractus cinctus Walker, 1846: 52 . Syntype (s)? ♀ (depository not specified), lost. TL: Great Britain, locality not specified. A neotype was not designated, as explained by Triapitsyn (2011a). Kirchner, 1867: 202 (catalogue) [P]; Enock, 1895: 89 [P]; Enock, 1896: 28 [P]; Dalla Torre, 1898: 424, 426 (catalogue) [P]; Ashmead, 1904: 364, 369 (genotype); Schmiedeknecht, 1909: 497 (catalogue) [P]; Matheson & Crosby, 1912: 68 (description, biology, hosts, distribution); Enock, 1914: 46 (list) [P]; Rimsky-Korsakov, 1917: 220, 225 (biology) [P]; Hungerford, 1920: 32 (host, distribution); Gahan & Fagan, 1923: 26 (type species); Rimsky-Korsakov, 1925: 103 (biology, morphology) [P]; Gahan et al., 1928: 984 (host, distribution); Hoffmann, 1932: 33 (host) [P]; Rimsky-Korsakov, 1940: 230 (distribution) [P]; Kryger, 1950: 48 (description, hosts) [P]; Peck, 1951: 418 (catalogue); Betten, 1951: 135 (literature review) [P]; Nikol’skaya, 1952: 542 (key) [P]; Jackson, 1956: 144 (host, percent parasitism) [P]; Hagen, 1956: 291 (host); Ison, 1958: 71 (biology, morphology) [P]; Jackson, 1958a: 533 (rearing methods, hosts) [P]; Jackson, 1958b: 17 (larva) [P]; Jackson, 1959: 198 (gynandromorph) [P]; Jackson, 1961a: 823 (diapause) [P]; Jackson, 1961b: 269 (immature stages) [P]; Jackson, 1963: 225 (diapause, life history) [P]; Peck, 1963: 49 (catalogue); Jackson, 1966: 23 (adult life, sex ratio) [P]; Jackson, 1969: 59 (reproductive organs, poison apparatus) [P]; Herting, 1973: 3 (host catalogue) [P]; Viggiani, 1973b: 276 (male genitalia [P]; Hellén, 1974: 21 (key, distribution) [P]; Bouček & Graham, 1978: 110 (catalogue) [P]; Trjapitzin, 1978: 532 (synonymy, distribution) [P]; Burks, 1979: 1031 (catalogue); Hinton, 1981: 709 (mention) [P]; Graham, 1982: 218 (types information) [P]; Trjapitzyn, 1987: 968 (synonymy, distribution) [P]; Viggiani, 1989: 146 (male genitalia) [P]; Yoshimoto, 1990: 70 (list); Boivin, 1994: 224 (overwintering strategy); Fursov, 1995: 5 (host, biology) [P]; Huber, 1997: 506 (key); Triapitsyn & Huber, 2000: 613 (list, distribution) [P]; Bennett, 2008a: 674 (larval description); Bennett, 2008b: 530 (host, swims under water); Boivin, 2010b: 11 (hymenopteriform larva); Triapitsyn, 2011a: 21 (description, distribution, literature); Pintureau, 2012: 28 (list) [P]; Zanolli & Pavan, 2013: 270 (diapause) [P]; Dale-Skey et al., 2016: 237 (checklist) [P].

Anaphes cinctus: Rousseau, 1908: 390 (generic combination) [P]; Thompson, 1958: 568 (host catalogue) [P].

Polynema natans Lubbock, 1864: 138 . Lectotype ♀ (NHMUK), validated by Graham, 1982: 218. TL: UK, England, London, Bromley, Farnborough, High Elms. Synonymy by Enock, 1897: 10 and Schmiedeknecht, 1909: 497.

Caraphractus reductus Rimsky-Korsakov, 1920: 7 . Lectotype ♀ (ZIN), designated by Triapitsyn, 2011a: 24. TL: Russia, Leningrad [skaya] Oblast, Lake Ladoga. Synonymy by Trjapitzin, 1978: 532 and Trjapitzin, 1987: 968.

Caraphractus flavicollis Hellén, 1974: 21 . Holotype ♀ (FMNH). TL: Finland, Lohja (as Lojo). Synonymy by Triapitsyn, 2011a: 24.

Nearctic hosts. Dytiscidae: Agabus sp. (CNC specimens). Distribution. Canada: BC, NB, NT, ON, QC. USA: NY.