Belongs within: Gerromorpha.
The Gerroidea are a group of predatory bugs specialised for skating over the surface of water. They are distinguished by legs with at least the fore pair having claws inserted well before the apex of the last tarsal segments. The claws of the mid and hind legs are inserted apically in Hermatobates but preapically in the remaining gerroids (Carver et al. 1991).
<==GerroideaCGW91
|--HermatobatesCGW91 [HermatobatidaeGE05, Hermatobatinae]
| `--H. haddoniCGW91
`--+--VeliidaeGE05
| | i. s.: VeliaG20
| | |--V. currens [=Hydrometra currens, Gerris currens; incl. H. aptera]L49
| | `--V. rivulorum [=Hydrometra rivulorum]L49
| |--RhagoveliaGE05 [RhagoveliinaeCGW91]
| | |--R. australicaCGW91
| | `--R. nigricans (Burm. 1835) [=Velia nigricans]D14
| |--HaloveliinaeCGW91
| | |--XenobatesCGW91
| | |--ColpoveliaCGW91
| | `--HaloveliaCGW91
| | |--H. electrodominicaS02
| | `--H. maritimaWEE70
| `--Microvelia [Microveliinae]CGW91
| | i. s.: M. americanaTBG00
| | M. capitataRD77
| | M. flavipesK08
| | M. mjobergiWEE70
| | M. pacifica Kirkaldy 1908K08
| | M. paludicolaK08
| | M. polheimiS02
| | M. vagansD14
| |--M. (Austromicrovelia)PH10
| | |--M. (A.) australiensisPH10
| | `--M. (A.) peramoenaPH10
| `--M. (Pacificovelia) oceanica Distant 1914PH10, D14
`--GerridaeGE05
| i. s.: Rheumatobates rileyiW37
| PaleogerrisGE05
| Limnoporus esakii Miyamoto 1958GE05, I92
| LimnometraK08
| |--L. ciliata Mayr 1865K08
| `--L. cursitansZS10
| Cylindrostethus Mayr 1865D61
| |--*C. fieberiD61
| |--C. hungerfordiD61
| |--C. linearisD61
| |--C. palmarisD61
| |--C. regulusD61
| `--C. stygius Drake 1961D61
| MetrobatesP92
|--Rhagadotarsus [Rhagadotarsinae]CGW91
| `--R. anomalusPH10
|--Electrobates [Electrobatinae]P92
| `--E. spinipes Andersen & Poinar 1992P92
|--EotrechinaeGE05
| |--EotrechusGE05
| `--OnychotrechusGE05
|--TrepobatinaeCGW91
| |--RheumatometraCGW91
| |--StenobatesCGW91
| `--Trepobates pictusA99
|--HalobatesGE05 [HalobatinaeCGW91]
| |--H. mjobergiN91
| |--H. ruffoiGE05
| |--H. sericeusCH97
| |--H. whiteleggeiH15
| `--H. wuellerstoffiO86
`--GerrinaeCGW91
|--AquariusCGW91
|--TenagogonusCGW91
|--Tenagogerris euphrosyneCGW91, G75
|--LimnogonusCGW91
| |--L. discolor (Stal 1859) [=Gerris discolor]K08
| |--L. fossarumMC13
| | |--L. f. fossarumMC13
| | `--L. f. gilguyMC13
| `--L. luctuosusCGW91
`--GerrisG75
|--G. aptera [incl. G. canalium]L49
|--G. babai Miyamoto 1958I92
|--G. lacustris (Linnaeus 1758)H01, L58 (see below for synonymy)
|--G. luctuosa Montr. 1864D14
|--G. odontogasterH01
|--G. paludumR26
`--G. rufoscutellatusH01
Gerris lacustris (Linnaeus 1758)H01, L58 [=Cimex (Linearis) lacustrisL49, L58, Hydrometra lacustrisL49; incl. C. najusL49]
*Type species of generic name indicated
References
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[CGW91] Carver, M., G. F. Gross & T. E. Woodward. 1991. Hemiptera (bugs, leafhoppers, cicadas, aphids, scale insects etc.) In: CSIRO. The Insects of Australia: A textbook for students and research workers 2nd ed. vol. 1 pp. 429–509. Melbourne University Press: Carlton (Victoria).
[CH97] Castro, P., & M. E. Huber. 1997. Marine Biology 2nd ed. WCB McGraw-Hill: Boston.
[D14] Distant, W. L. 1914. Rhynchota from New Caledonia and the surrounding islands. In: Sarasin, F., & J. Roux (eds) Nova Caledonia: Forschungen in Neu-Caledonian und auf den Loyalty-Inseln. A. Zoologie vol. 1 pt 4 pp. 369–390, pls 11–12. C. W. Kreidels Verlag: Wiesbaden.
[D61] Drake, C. J. 1961. A new Cylindrostethus from Peru (Hemiptera: Gerridae). Proceedings of the Biological Society of Washington 74: 65–66.
[G20] Goldfuss, G. A. 1820. Handbuch der Naturgeschichte vol. 3. Handbuch der Zoologie pt 1. Johann Leonhard Schrag: Nürnberg.
[GE05] Grimaldi, D., & M. S. Engel. 2005. Evolution of the Insects. Cambridge University Press: New York.
[G75] Gross, G. F. 1975. Plant-feeding and Other Bugs (Hemiptera) of South Australia. Heteroptera—Part I. Handbook of the Flora and Fauna of South Australia.
[H15] Hedley, C. 1915. Presidential address. Journal and Proceedings of the Royal Society of New South Wales 49 (1): 1–77, pls 1–7.
[H01] Horváth, G. 1901. Hemipterák [Hemiptera]. In: Horváth, G. (ed.) Zichy Jenő Gróf Harmadik Ázsiai Utazása [Dritte Asiatische Forschungsreise des Grafen Eugen Zichy] vol. 2. Zichy Jenő Gróf Harmadik Ázsiai Utazásának Állattani Eredményei [Zoologische Ergebnisse der Dritten Asiatischen Forschungsreise des Grafen Eugen Zichy] pp. 245–274. Victor Hornyánszky: Budapest, and Karl W. Hierseman: Leipzig.
[I92] Iwahashi, J. (ed.) 1992. Reddo Deeta Animaruzu: a pictorial of Japanese fauna facing extinction. JICC: Tokyo.
[K08] Kirkaldy, G. W. 1908. A catalogue of the Hemiptera of Fiji. Proceedings of the Linnean Society of New South Wales 33: 345–391, pl. 4.
[L58] Linnaeus, C. 1758. Systema Naturae per Regna Tria Naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis revised 10th ed. vol. 1. Laurentii Salvii: Holmiae.
[L49] Lucas, H. 1849. Exploration Scientifique de l’Algérie pendant les années 1840, 1841, 1842 publiée par ordre du gouvernement et avec le concours d’une commission académique. Sciences physiques. Zoologie. II. Histoire naturelle des animaux articulés. Troisième partie. Insectes (suite). Imprimerie Nationale: Paris.
[MC13] Majer, J. D., S. K. Callan, K. Edwards, N. R. Gunawardene & C. K. Taylor. 2013. Baseline survey of the terrestrial invertebrate fauna of Barrow Island. Records of the Western Australian Museum Supplement 83: 13–112.
[N91] Norris, K. R. 1991. General biology. In: CSIRO. The Insects of Australia: A textbook for students and research workers 2nd ed. vol. 1 pp. 68–108. Melbourne University Press: Carlton (Victoria).
[O86] Olliff, A. S. 1886. Notes and exhibits. Proceedings of the Linnean Society of New South Wales, series 2, 1 (1): 163–164.
[PH10] Pinder, A. M., S. A. Halse, R. J. Shiel & J. M. McRae. 2010. An arid zone awash with diversity: patterns in the distribution of aquatic invertebrates in the Pilbara region of Western Australia. Records of the Western Australian Museum Supplement 78 (1): 205–246.
[P92] Poinar, G. O., Jr. 1992. Life in Amber. Stanford University Press: Stanford.
[RD77] Richards, O. W., & R. G. Davies. 1977. Imms’ General Textbook of Entomology 10th ed. vol. 2. Classification and Biology. Chapman and Hall: London.
[R26] Risso, A. 1826. Histoire naturelle des principales productions de l’Europe méridionale et particulièrement de celles des environs de Nice et des Alpes maritimes vol. 5. F.-G. Levrault: Paris.
[S02] Sinitshenkova, N. D. 2002. Ecological history of the aquatic insects. In Rasnitsyn, A. P., & D. L. J. Quicke (eds) History of Insects pp. 388–426. Kluwer Academic Publishers: Dordrecht.
[TBG00] Tuzovskij, P., D. Benfatti & R. Gerecke. 2000. The water mite family Acherontacaridae Cook, 1967 nov. stat. and diagnosis of the superfamily Hydrovolzioidea Thor, 1905 (Acariformes, Hydrachnidia). Acarologia 41: 451–473.
[W37] Walton, W. R. 1937. The official seal of the Entomological Society of Washington. Proceedings of the Entomological Society of Washington 39 (6): 168.
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[ZS10] Zborowski, P., & R. Storey. 2010. A Field Guide to Insects in Australia 3rd ed. Reed New Holland: Sydney.