Type species: Dytiscus impressus Fabricius 1787 [= Haliplus (Haliplus) ruficollis (DeGeer 1774)], by subsequent designation of Latreille (1810), by subsequent designation by Holmen (1987:133).
The identity of the type species of Haliplus has only recently been resolved by Holmen (1987). He notes that Latreille (1802) created the genus Haliplus for two species: Dytiscus impressus Fabricius 1787 sensu Latreille [mis-identified Dytiscus fulvus Fabricius 1801] and Dytiscus obliquus Fabricius 1787. Latreille (1810) subsequently designated Dytiscus impressus Fabricius 1787 as the type species of his genus.
Latreille's (1806) illustration of his impressus is, in fact, the species now knows as Haliplus fulvus (Fabricius 1801). A lectotype for Dytiscus impressus Fabricius 1787 [=Dytiscus ruficollis DeGeer 1774] is designated by Holmen (1987:133). Holmen (1987:90) notes that although most European authors follow Balfour-Browne (1938), who proposed Dytiscus obliquus Fabricius 1787 as the type species (see also Guignot 1939:176), this designation is not valid under a ruling by the ICZN (art. 69, a, vi).
Most recent works on Haliplus use the subgenera proposed by Guignot (1955), but this work, as well as his 1939 paper on Haliplus, are based upon an incorrectly fixed type species for the genus. It is more appropriate to use the earlier proposal of subgenera by Guignot (1928).
Subgenera of Haliplus
Discussed here
Key to Subgenera
Checklist of Species of Haliplus
World
US, US Territories, and Canada
Key to Species of Haliplus
US and Canada - Wallis (1933), 40 species.
Argentina - Sarmiento and Grosso (1971), 8 species
South Africa - Gueorguiev (1967), 8 species.
Cjina - Van Vondel (1995), 16 species
Japan - Takizaea (1931), 7 species.
Palearctic Liaphlus - Van Vondel (1991), 30 species.
Oriental Liaphlus - Van Vondel (1993), 16 species.
India Liaphlus - Vazirani (1966), 5 species.
Literature Cited
Balfour-Browne, F.
- 1938. Systematic notes upon British aquatic Coleoptera being a corrected and revised edition of a series of papers which appeared in the 'Entomologists' Monthly Magazine' from 1934 to 1936. Nathaniel Lloyd & Co., Ltd., London. 95 pp.
DeGeer, C.
- 1774. Memories pour servir a l'histoire des insectes, 4. Pierre Hesselberg,
Stockholm. xii + 456 pp.
Fabricius, J. C.
- 1787. Mantissa Insectorum, I. Hafniae.
- 1801. Systema Eleutheratorium, etc. 1. Hafniae.
Gueorguiev, V. B.
- 1967. Coleoptera: Haliplidae, pp. 9-14. In. South African Animal Life:Results of the Lund Univ. Expedition in 1950-1951, vol. 13. B. Hanstrom, P. Brinck, and G. Rudebeck, eds. Swedish Nat. Sci. Res. Council, Stockholm.
Guignot, F.
- 1928. Notes sur les Haliplus du groupe fulvus F. [Coleopt. Haliplidae]. Ann. Soc. Entomol. France 97:133-151.
- 1939. A propos du type du genre Haliplus [Col. Haliplidae]. Bull. Soc. Entomol. France 44(11-12):176.
- 1955. Sur la Systematique des Haliplus (Col. Haliplidae). Mem. Soc. Roy. Belg. 27:289-296.
Holmen, M.
- 1987. The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark. I. Gyrinidae, Haliplidae, Hygrobiidae and Noteridae. Fauna Entomol. Scandinavica 20:1-168.
Latreille, P. A.
- 1802. Histoire naturelle, generale et particuliere des crustaces et des insects.... Dufart, Paris. 3:i-xii + 13-467.
- 1806. Genera crustacorum et insectorum secundum naturalem in familias disposita, iconibus exemplisque. Amand Koenig, Paris 1:228-235.
- 1810. Considerations generales sur l'orbre naturel des Crustaces, Arachnides et Insectes. Paris.
Sarmiento, J. V., and L. E. Grosso.
- 1971. Notas sobra halipidos argentinos (Coleoptera): II. Revision de las Especies Argentinas. Rev. Soc. Entomol. Argentina 33:147-157.
Takizawa, M.
- 1931. The Haliplidae of Japan. Insecta Matsumarana 5(3):137-143.
Van Vondel, B. J.
- 1991. Revision of the palearctic species of Haliplus subgenus Liaphlus Guignot (Coleoptera: Haliplidae). Tijdschr. Entomol. 134(1):75-144.
- 1993. Revision of the Liaphlus species of the Oriental region excluding China (Coleoptera: Haliplidae). Tijdschr. Entomol. 136(2): 289-316.
- 1995. Haliplidae: Review of the Haliplidae of China, Chapter III. pp. 111-154. In M. A. Jach and L. Ji, eds. Waterbeetles of China. Zoologisch-Botanische Gesellschaft, Vienna.
Vazirani, T. G.
- 1966. A review of the Indian Haliplidae (Insecta: Coleoptera), with descriptions of two new species. Proc. Zool. Soc. 19:127-134.
Wallis, J. B.
- 1933. Revision of the North American species (North of Mexico), of the genus Haliplus, Latreille. Trans. Roy. Canadian Inst. 19:1-76.

Revised 28 May 1996
Warren U. Brigham
brigham@wub.igis.uiuc.edu