Pars 71 Hyphydrus. 43 



ed. 2, 1795, p. 235 (Dyüscus). — Latr. Gen. 

 Crust. et Ins. I, 1806, p. 233. - Gutfl.-Bose, 

 Käf. Deutschi. 1859, p. 53. - C. G. Thoms. 

 Vet. Ak. Handl. 1854, p. 212; Skand. Col. II, 

 1860, p. 11. — Fuß, Arch. Siebenb. IV, 3, 

 1860, p. 96. — Bedel, Fn. Col. Bassin Seine I, 

 1881, p. 231. - Gangib. Käf. Mittel-Eur. I, 

 1892, p. 448. — Kliment, Cesti bvouci 1896, 

 p. 89, t. 7, f. 10. — Everts, Col. Xeeil. I, 1898. 

 p. 118. -- Lameere, Fn. Belg. II, 1900, p. 820. 



- Reitter, Fn. Germ. I, 1908, p. 207, t. 33, 

 f. 2 a — c; Süßwasserfn. Deutschi. III — IV, 

 1909, p. 16. - Csiki, Mag. Bogarfn. I, 5, 1908, 

 p. 470. 



gross ics O. Müll. Zool. Dan. Prodr. 1776, p. 72. 



(Dytiscus). 

 ^ ovalis 111. Käf. Preuß. 1798, p. 271. - 



F. Syst. Eleuth. I, 1801, p. 256. - Gyll. Ins. 



Suec. 1, 1808, p. 518. - C. R. Sahlb. Ins. 



Fenn. I, 1834, p. 171. 

 9 gihbus F. Gen. Ins. 1777, p. 238; Spec. 



Ins. 1781, p. 295: IMant. Ins. 1787, p. 191; Ent. 



Syst. 1792, p. 193 (Dytiscus); Syst. Eleuth. 1, 



1801, p. 256 (Hydrachna). — Panz. Ent. 



Germ. I, 1795, p. 77; Fn. Germ. 91. 1805, t. 5. 



- Duft. Fn. .Austf. 1, 1805, p. 287. - Gyll. 

 Ins. Suec. 1, 1808, p. 517. - C. R. Salill^ 

 Ins. Fenn. I, 1834, p. 1/0. 



spha er icu s De Geer, Mem. Hist. Ins. IV, 



1774, p. 402, t. 15, f. 17-20 (Dyüscus). 

 ab. variegatus Steph. (nee Aube) 111. Brit. 



Ent. Mand. II, 1828, p. 45. - Gangib. Käf. 



Mitteleur. I, 1892, p. 448. 

 Biologie: Westwood, Intr. mod. Classif. 



Ins. I, 1839, p. 100, fig. 6, 5-8. - Er. 



Arch. jSTaturgesch. VII, 1841, p. 75. — Chainiis, 



M6m. Soc. Sc. Liege 1853, p. 384. — Kiesw. 



Nat. Ins. Deutschi. I, 2, 1868, p. 77 (Noterus). 



- Schiödte, Nat. Tidsskr. 1864, p. 169, t. 5, 

 f. 1-9. - Fowler, Col. Brit. Isl. I, 1887, 

 p. 166. — Gangib. Käf. Mitteleur. I, 1892, 

 p. 447, 443, fig. 46, 47. - Meinert, Mem. 

 Ac. Sc. Danem. (6) IX, 1901, p. 356, t. 1, 

 f. 1-9. - Jakobs. Käf. Rußl. 1905, p. 52, 

 fig. 80. - Reitt. Fn. Germ. I, 1908, t. 33, 

 f. 2a; Süßwasserfn. Deutschi. III -IV, 1909, 

 p. 16, fig. 14. — Wesenberg-Lund, Intern. 

 Revue Hydrobiol. 1912-13, Biol. Suppl. V, 

 p. 12. 



Morphologie: R6g. Ann. Soc. Ent. France 

 (5) VIII, 1878, t. 10, f. 26. - Xetolitzky, 

 Deutsche Ent. Zeitschr. 1911, t. 3, f. 14. — 

 Böving, Intern. Revue Hydrobiol. 1912 — 13, 

 Biol. Suppl. V, p. 9. 



parvicollis Sharp, On Aquat. Carn. Col. 1880—82, Gal>on, 

 p. 375. — Reg. Notes Leyden Mus. XI, 1889, Ccngo 



p. 50; M6m. Soc. Ent. Belg. IV, 1895, p. 60. 



perforatus Reg. Mem. Soc. Ent. Belg. IV, 1895, p. 56. Congo 



