84 Hydroporus. Pars 71 



p. 30, t. 1, f. 3, a, b. — Payk. Fn. Suec. I, 

 1798, p. 222. — Cederhjelm, Fn. Ingr. Prodr. 

 1798, p. 32. — Marsh. Ent. Brit. I, 1802, 

 p. 421. - Duft. Fn. Austr. I, 1805, p. 272 

 (Dytiscus). — Gyll. Ins. Suec. I, 1808, p. 529 

 (Hyphydrus). — C. R. Sahlb. Ins. Fenn. I, 1834, 

 p. 177. — Steph. 111. Brit. Ent. Mandib. IT, 

 1828, p. 53. — Boisd. et Lacord. Fn. Ent. 

 Paris I, 1835, p. 329. — Sturm, Deutschi. 

 . Ins. IX, 1835, p. 35. - AuU, Icon. Col. V, 

 1836, p. 271, t. 31, f. 4-6; Spec. Col. VI, 1838, 

 p. 562. - Er. Käf. Mark Brandbg. I, 1837. 

 p. 170. - Gast. Hist. ISTat. Col. I, 1840, p.l65. — 

 Schiödte, Danm. El. I, 1841, p. 443. - Redt. 

 Fn. Austr. 1849, p. 123; ed. 2, 1857, p. 89; 

 ed. 3, 1874, I, p. 97. - Bach, Käferfu. Nord- 

 deutschl. I, 1851, p. 113. — Fairm. et La- 

 boulb. Fn. Ent. Frang. I, 1854, p. 202. — 

 Gutfl.-Bose, Käf. Deutschi. 1859, p. 56. — 

 C. G. Thoms. Vet. Ak. Handl. 1854, p. 196; 

 Skand. Col. II, 1860, p. 19; IX, 1867, p. 72. - 

 Kiesw. Nat. Ins. Deutschi. I, 2, 1868, p. 57. — 

 Seidl. Fn. Balt. 1872, p. 49; ed. 2, 1887, p. 83; 

 Verh. Nat. Ver. Brunn XXV, 1887, p. 66; 

 Fn. Transsylv. 1888, p. 94. — Sharp, On Aquat. 

 Carn. Col. 1880-82, p. 480. - Bedel, Fn. Col. 

 Bassin Seine I, 1881, p. 237. — Fowler, Col. 

 Brit. Isl. I, 1887, p. 178. - Gangib. Käf. 

 Mitteleur. I, 1892, p. 469. - Kliment, Cesti 

 brouci, 1896, p. 93, t. 7, f. 24. - Everts, Col. 

 Neerl. I, 1898, p. 124. - Stierl. Col. Helv. I, 

 1900, p. 189. - Lameere, Fn. Belg. II, 1900, 

 p. 815. — Csiki, Mag. Bogarfn. I, 5, 1908, 

 481. - Reitter, Fn. Germ. I, 1908, p. 214, 

 t. 35, f. 4 a-c; Süßwasserfn. III -IV, 1909, 

 p. 24. — Zimmerm. Arch. f. Naturgesch. 83, 

 1917 (1919), A. 12, p. 167. 



dubius Melsh. Proc. Acad. Philad. II, 1846, p. 29. 



rufifrons F. Ent. Syst. I, 1792, p. 198 

 (Dytiscus). 



? qua dr i CO lor Gmel. Syst. Nat. I, 4, 1790, 

 p. 1957 (Dytiscus). 



? punctatus O. Müll. Zool. Dan. Prodr. 

 1776, p. 73 (Dytiscus). 



? f imhriatu s Schrank, Enum. Ins. Austr. 

 1781, p. 203 (Dytiscus). 



ab. f ig ur a tu s Gyll. Ins. Suec. IV, 1827, 

 p. 387. - C. R. Sahlb. Ins. Fenn. I, 1834, 

 p. 175. — Zett. Ins. Läpp. 1840, p. 137. — 

 C. G. Thoms. 1. c. p. 20. — Kiesw. 1. c. p. 57. — 

 Seidl. Verh. Nat. Ver. Briinn XXV, 1887, 

 p. 66; Fn. Balt. ed. 2, 1887, p. 83; Fn. Trans- 

 sylv. 1888, p. 94. — Schilsky, Deutsche Ent. 

 Zeitschr. XXXIII, 1889, p. 347. - Gangib. 

 1. 0. p. 469. — Everts, 1. c. p. 124. — Reitter, 

 1. c. — Zimmerm. 1. c. 



ab. transversalis Dalla Torre, Jahresber. 

 Ver. Nat. Österr. ob Enns VIII, 1877, p. 61. — 

 Schilsky, Deutsche Ent. Zeitschr. 1889, p. 347. 



