Deronectes ilepressus, J\ih., and elo^niis, Panzer. 307 



4. Bach. 1864-60. Kafer Fauna fiir Nord u. Mittel DeuUchland, 



ii.c., p. 109. \_ele<jatis a distiiict 8|>ocic'8.1 

 6. Bedul, F. 1881. " Fauna du Ma.s.sin do la Bi'ine " (Ann. Soc. Ent. 



France), i. p. 230. [Is uncertain aa to eleyan* beinjj distinct !] 



6. Boss. 18r>9. Die Kiiier Deutscblands. ^<'/<'yrt««u distinct upecies.] 



7. Df KTSCUMIUT, K. 180o. Fn. Austria;, pt. i. p. 27li. [The tirst 



author to regard tleijans as a synonym.] 

 VERTS, J. E. 1898. Col. Xeerlandica, i. 



8. Everts, J. E. 1898. Col. Xeerlandica, i. p. 122. [Merely follows 

 Ciauglbauer.l 



9. FAHiucirs, J. ( . 1792. Entomolojria Systematica, &c., i. p. 195. 



[J>!/(iscus t/epressiis, original description.] 



10. Faihmaiue, \j. I8r>4. Fn. Ent. Franco, Coleoptera, i. p. 210. 



[Gives " depressus, F — Aubc^ sp. AO*!. No aynoiivnis.] 



11. Favkk, E. 1890. " Fn. des Col. du Valais, &c." ('Xouv. M.^m. Soc. 



Ilelvetique, 4 stSr. i. p. 61). [depressus, with syuonvm brtvis, 

 Stm.] 



12. FowLKU, W. W. 1887. Coleoptera of the British Islands, i. p. 171. 



[depressits, F. No synonyna.] 

 18. Ga.ngluaukii, L. 1891. Kjifer von Mitteleuropa, i. pp. 462, 463. 



lele</<ms a distinct species.] 

 14. Gyllknual, L. 1810. Ins. Suecica, i. p. 520. [e/<v/rt«5 a synonym.] 

 16. IIekk, O. 1837. " Die Kiifer der .Schweiz, &c." (Mem. .Soc. helv. 



Sc. Nat. ii. p. 91). [depressus, F., Payk., and var. ^. pallidus, Heer.] 



16. . 1841. Fn. Coleoptera Helvetica, part i. p. 162. [H. de- 

 pressus, F., Stm., Aub6, and G\ll. The inclusion of Aub6 indi- 

 cates that he re^rards elegans as a synonym.] 



17. Ili.I(jkk, J. K. W. 1798. Kiif. Preuss. i. p. 266. [elegans as a 



distinct species, but lie only knew depressus from a de8cri|)tion !] 



18. Joii.NsoN, \V. F., & Halbkut, J. N. 1901. " P.eetles of Ireland " 



(Proc. Koy. Irish Acad. ser. iii., vi.). [depressus, F. No 

 synonymy.] 



19. KuNzi;, f G. 1818. Entomologische Fragmente, 63 Sam. i. p. 22. 



[elegans a synonym-.] 



20. Mausham, T. 1805. Ent. Brit. i. pp. 421, 422. [elegans only.] 



21. Murray, A. 1853. Cat. Col. Scotland, p. 18. [" //. elegans^ 



lUig. {depressus, AubtS, Steph., not Fabr. — brevis, Stui-m),"] 



22. Panzer, G. W. F. 1793 et seq. Fn. luaectorum Germauiae initia, 



or Deutschlands Insecten, Coleoptera, ixiv. 5. [Dytiscus elegans, 

 original description.] 



23. Paykull, G. 1798. Tn. Suecica, i. pp. 221, 222. [depressus on\y.'] 



24. Kkdtenbacher, L. 1849, Fn. Austriaca, p. 121. [elegans a 



synonym.] 

 26. Heitter, E. 1900. Cat. Col. Europae, p. 114. [elegans a distinct 

 species.] 



26. . 1908. Fn. Germanica, i. p. 213. [f/f//a?js a distinct si>ecie8.] 



[Repeated in Die Susswasserfuuna Deutschlands, 1909, p. 23.] 



27. Sahlbeko, C. K. 1834. Insecta Feunica, p. 176. \d<pressus 



only.] 



28. Sahlbero, J. R. 1900. Cat. Col. Fn. Fennicso. [depressus 



only.] 



29. ScHArM,n.R. 1843. ♦' Beitrag zur Kenntnissder Nord-deutschen 



Salzkiifer,'' Germar's Zeitsclir. f. d. Ent. iv. p. l86. [elegans 

 distinct, but vide Scliaum, 1808.1 



30. & Kiese.nwetter. 1868. Erichson's Naturg. der Insecten 



Deutschlands, i. pp. 62, 53. [elegans a synonym.] 



