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Your current IP address is 8.222.208.146. </p> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>Even while globally blocked, you will <i>usually</i> still be able to edit pages on <a href="https://meta.wikimedia.org/wiki/" class="extiw" title="m:">Meta-Wiki</a>. </p> </div> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>If you believe you were blocked by mistake, you can find additional information and instructions in the <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/No_open_proxies" class="extiw" title="m:Special:MyLanguage/No open proxies">No open proxies</a> global policy. Otherwise, to discuss the block please <a href="https://meta.wikimedia.org/wiki/Steward_requests/Global" class="extiw" title="m:Steward requests/Global">post a request for review on Meta-Wiki</a>. You could also send an email to the <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/Stewards" class="extiw" title="m:Special:MyLanguage/Stewards">stewards</a> <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/VRT" class="extiw" title="m:Special:MyLanguage/VRT">VRT</a> queue at <kbd>stewards@wikimedia.org</kbd> including all above details. </p> </div> <p>Other useful links: <a href="https://meta.wikimedia.org/wiki/Global_blocks" class="extiw" title="m:Global blocks">Global blocks</a> · <a href="/wiki/Help:I_have_been_blocked" title="Help:I have been blocked">Help:I have been blocked</a> </p> </div></li></ul><hr /> <div id="viewsourcetext">You can view and copy the source of this page:</div><textarea readonly="" accesskey="," id="wpTextbox1" cols="80" rows="25" style="" class="mw-editfont-monospace" lang="en" dir="ltr" name="wpTextbox1">{{Short description|Family of beetles}} {{Automatic taxobox | fossil_range = {{fossil range|Late Jurassic|Recent}} | image = Großer Kolbenwasserkäfer Hydrous piceus 1.jpg | image_caption = ''[[Hydrophilus piceus]]'' | display_parents = 3 | taxon = Hydrophilidae | authority = [[Pierre André Latreille|Latreille]], 1802 | subdivision_ranks = Genera | subdivision = 169 }} '''Hydrophilidae''', also known colloquially as '''water scavenger beetles''', is a [[family (biology)|family]] of [[beetle]]s.<ref name="bugguide">{{cite web|url=http://www.bugguide.net/node/view/9594 |title=BugGuide: Family Hydrophilidae – Water Scavenger Beetles |publisher=bugguide.net |access-date=2015-06-30}}</ref><ref>{{cite web|url=http://cfb.unh.edu/StreamKey/html/organisms/OColeoptera/FAco_adult/FAHydrophilidae/Hydrophilidae.html |title=Hydrophilidae – UNH Center for Freshwater Biology |publisher=UNH |access-date=2015-06-30}}</ref> Aquatic hydrophilids are notable for their long [[maxilla]]ry palps, which are longer than their [[antenna (biology)|antennae]].<ref>{{cite web|url=http://www.worddomination.com/sphaeridiinae.html |title=Sphaeridiinae Definition. Crossword Dictionary. |publisher=worddomination.com |access-date=2015-06-30}}</ref> Several of the former [[Subfamily|subfamilies]] of Hydrophilidae have recently been removed and elevated to family rank; [[Epimetopidae]], [[Georissidae]] (= Georyssidae), [[Helophoridae]], [[Hydrochidae]], and [[Spercheidae]].<ref name="bugguide" /><ref>{{Cite journal |doi = 10.1163/187631200X00228|title = Fifteen new genera of Hydrophilidae (Coleoptera), with remarks on the generic classification of the family|year = 1999|last1 = Hansen|first1 = Michael|journal = Insect Systematics & Evolution|volume = 30|issue = 2|pages = 121–172}}</ref> While the majority of hydrophilids are aquatic, around a third of described species are terrestrial, mostly belonging to the subfamily [[Sphaeridiinae]].<ref name=":6" /><ref>Y.N. Minoshima, M. Seidel, J.R. Wood, R.A.B. Leschen, N.L. Gunter, M. Fikáček Morphology and biology of the flower-visiting water scavenger beetle genus ''Rygmodus'' (Coleoptera: Hydrophilidae) Entomological Science, 21 (2018), pp. 363-384, 10.1111/ens.12316</ref> With rare exceptions, the [[larva]]e are predatory while the adults may be herbivores or predators in addition to scavenging.<ref name="mdc">{{cite web|url=http://mdc.mo.gov/discover-nature/field-guide/water-scavenger-beetles |title=Water Scavenger Beetles |publisher=Missouri Department of Conservation |access-date=2015-06-30 |url-status=dead |archive-url=https://web.archive.org/web/20150702094719/http://mdc.mo.gov/discover-nature/field-guide/water-scavenger-beetles |archive-date=2015-07-02 }}</ref> Many species are able to produce sounds.<ref name="Ryker 1976 147–156">{{Cite journal|last=Ryker|first=Lee C.|date=1976|title=Acoustic Behavior of Tropisternus ellipticus, T. columbianus, and T. lateralis limbalis in Western Oregon (Coleoptera: Hydrophilidae)|journal=The Coleopterists Bulletin|volume=30|issue=2|pages=147–156|jstor=3999809|issn=0010-065X}}</ref> Species of ''[[Hydrophilus (beetle)|Hydrophilus]]'' are reported as pests in [[Fish hatchery|fish hatcheries]].<ref name="mdc" /> Other species are voracious consumers of [[mosquito]] larvae, and have potential as [[biological control]] agents.<ref name="mdc" /><ref>{{cite journal|url=https://www.academia.edu/1029272 |title=Aquatic insect predators and mosquito control |journal=Tropical Biomedicine |via=academia.edu |access-date=2015-06-30|last1=Shaalan |first1=Essam |last2=Canyon |first2=D. V. |year=2009 |volume=26 |issue=3 |pages=223–61 |pmid=20237438 }}</ref> This beetle family contains 2,835 species in 169 genera.<ref>Short & Fikáček, 2011: 85, table 1 (see bibliography)</ref> == Geography == Hydrophilid beetles are found worldwide.<ref name=":6" /> In the Americas, they are usually found in areas of high humidity such as the tropics of Central and South America. They can also be found in rain pools and ponds in the forests of [[Guacamole|Guatemala]] and [[Argentina]].<ref name=":2">{{Cite journal|last1=Pereyra|first1=Daniela|last2=Archangelsky|first2=Miguel|date=2007-04-24|title=The effect of prey density on the developmental time of larvae of an aquatic beetle: Tropisternus setiger (Insecta, Coleoptera: Hydrophilidae)|journal=Hydrobiologia|volume=586|issue=1|pages=367–372|doi=10.1007/s10750-007-0710-x|s2cid=37162746 |issn=0018-8158|hdl=11336/101797|hdl-access=free}}</ref> They also tend to exist in [[North America]] in areas with seasonal wetlands or lakes depending on the state.<ref>{{Cite journal|last1=Batzer|first1=Darold P.|last2=Resh|first2=Vincent H.|date=March 1991|title=Trophic Interactions among a Beetle Predator, a Chironomid Grazer, and Periphyton in a Seasonal Wetland|journal=Oikos|volume=60|issue=2|pages=251|doi=10.2307/3544872|jstor=3544872|bibcode=1991Oikos..60..251B |issn=0030-1299}}</ref> ''[[Hydrophilus triangularis]]'' is found widely throughout the [[United States]] and is the biggest water beetle in the country. The family Hydrophilidae has been reported in every state in the United States.<ref name="bugguide distribution">{{cite web|url=https://bugguide.net/node/view/9594/data |title=BugGuide: Family Hydrophilidae – Water Scavenger Beetles Data|publisher=bugguide.net |access-date=2024-03-20}}</ref> == Evolutionary history == The oldest known [[fossil]]s definitively assignable to the family are from the Late Jurassic [[Solnhofen Limestone|Solnhofen]] of [[Germany]] and [[Talbragar fossil site|Talbragar Fish Bed]] in [[Australia]].<ref>{{Cite journal|last1=Fikáček|first1=Martin|last2=Prokin|first2=Alexander|last3=Yan|first3=Evgeny|last4=Yue|first4=Yanli|last5=Wang|first5=Bo|last6=Ren|first6=Dong|last7=Beattie|first7=Robert|date=April 2014|title=Modern hydrophilid clades present and widespread in the Late Jurassic and Early Cretaceous (Coleoptera: Hydrophiloidea: Hydrophilidae): Modern hydrophilid clades in the Mesozoic|url=http://doi.wiley.com/10.1111/zoj.12114|journal=Zoological Journal of the Linnean Society|language=en|volume=170|issue=4|pages=710–734|doi=10.1111/zoj.12114|s2cid=82580893 }}</ref> == Habitat == A majority of the beetles in the family Hydrophilidae live in aquatic environments in both their larval and adult life stages. Some hydrophilid beetles will lay their [[egg]]s in ephemeral ponds and puddles where the larvae will live as they develop.<ref>{{Cite journal|last=Landin|first=Jan|date=July 1980|title=Habitats, life histories, migration and dispersal by flight of two water-beetles Helophorus brevipalpis and H. strigifrons (Hydrophilidae)|journal=Ecography|language=en|volume=3|issue=3|pages=190–201|doi=10.1111/j.1600-0587.1980.tb00725.x|s2cid=84482581 |issn=0906-7590|doi-access=free|pmc=7163735|bibcode=1980Ecogr...3..190L }}</ref> Other beetles such as ''Derralus angustus'' and ''Tropisternus setiger'' live in permanent ponds. Some beetles such as ''[[Tropisternus lateralis]]'' will only live in aquatic environments that lack [[fish]] because fish prey on their eggs, while others like ''D. angustus'' prefer aquatic habitats with a specific species of [[Salvinia natans|floating fern]].<ref>{{Cite journal|last=Resetarits|first=William J.|date=September 2001|title=Colonization under threat of predation: avoidance of fish by an aquatic beetle, Tropisternus lateralis (Coleoptera: Hydrophilidae)|journal=Oecologia|volume=129|issue=1|pages=155–160|doi=10.1007/s004420100704|pmid=28547063|bibcode=2001Oecol.129..155R|s2cid=22620190 |issn=0029-8549}}</ref> Generally, hydrophilids live in marshy, shallow, and heavily weeded aquatic environments.<ref name=":3">{{Cite book|last=Usinger|first=Robert L.|title=Aquatic insects of California, with keys to North American genera and California species|date=1956|publisher=University of California Press|location=Berkeley|doi=10.5962/bhl.title.61952}}</ref> There are some hydrophilid beetles that make their homes in fresh animal waste, decaying vegetation, or humus-rich soil.<ref>{{Citation|chapter=Hydrophilidae|encyclopedia=Encyclopedia of Entomology|year=2004|pages=1140|publisher=Kluwer Academic Publishers|doi=10.1007/0-306-48380-7_2111|isbn=0-7923-8670-1 }}</ref> They survive in a very wide variety of locations and because of that some types are more adapted to specific environments than others and will often only move to habitats of the same type.<ref>{{Cite journal|last1=Song|first1=Ke-Qing|last2=Xue|first2=Huai-Jun|last3=Beutel|first3=Rolf G.|last4=Bai|first4=Ming|last5=Bian|first5=Dong-Ju|last6=Liu|first6=Jie|last7=Ruan|first7=Yong-Ying|last8=Li|first8=Wen-Zhu|last9=Jia|first9=Feng-Long|last10=Yang|first10=Xing-Ke|date=2014-10-01|title=Habitat-dependent diversification and parallel molecular evolution: Water scavenger beetles as a case study|journal=Current Zoology|volume=60|issue=5|pages=561–570|doi=10.1093/czoolo/60.5.561|issn=2396-9814|doi-access=free}}</ref> == Physiology == [[Reproduction]] in hydrophilids takes place in bodies of water such as ponds. In the larval stage the beetle resides in a shallow area of the pond because they are dependent on the [[oxygen]] only available in the shallower areas. After the beetle exits the [[pupa]] stage they often take flight and move to a new area before they reproduce.<ref name=":3" /> Wing growth depends on the environment that the beetle resides in. Beetles in [[lentic]] habitats have better wing development compared to [[lotic]] habitats because lentic habitats are less reliable and require the beetles to disperse quicker in order to survive.<ref>{{Cite journal|last1=Arribas|first1=Paula|last2=Velasco|first2=Josefa|last3=Abellán|first3=Pedro|last4=Sánchez-Fernández|first4=David|last5=Andújar|first5=Carmelo|last6=Calosi|first6=Piero|last7=Millán|first7=Andrés|last8=Ribera|first8=Ignacio|last9=Bilton|first9=David T.|date=2011-12-15|title=Dispersal ability rather than ecological tolerance drives differences in range size between lentic and lotic water beetles (Coleoptera: Hydrophilidae)|journal=Journal of Biogeography|volume=39|issue=5|pages=984–994|doi=10.1111/j.1365-2699.2011.02641.x|s2cid=3902117 |issn=0305-0270}}</ref> Some beetles such as [[Berosus (beetle)|''Berosus'']] larvae can inhabit areas deeper in the water due to their thoracic gills while others like ''Berosus ingeminatus'' use [[cutaneous respiration]] allowing them to hold air for longer periods of time. The ability to consume oxygen at deeper water levels helps them avoid being preyed upon from surface predators.<ref name=":3" /> Larvae use two main types of feeding mechanism, chewing and piercing-sucking, with the latter evolving at least three times independently in Hydrophilidae and once in [[Epimetopidae]] and allowing underwater extra-oral digestion, decreasing dependence on aerial environments.<ref>{{cite journal|author1=Rodriguez, Georgina|author2=Fikáček, Martin|author3=Minoshima, Yȗsuke N.|author4=Archangelsky, Miguel|author5=Torres, Patricia L. M.|title=Going underwater: multiple origins and functional morphology of piercing-sucking feeding and tracheal system adaptations in water scavenger beetle larvae (Coleoptera: Hydrophiloidea)|journal=Zoological Journal of the Linnean Society|year=2021|volume=193|issue=1|pages=1–30|doi=10.1093/zoolinnean/zlaa132|url=https://academic.oup.com/zoolinnean/article/193/1/1/6007424|doi-access=free|hdl=11336/139362|hdl-access=free}}</ref> Adult hydrophilid beetles can survive in deeper areas of water and stay under for longer due to their special abilities in acquiring oxygen. They can hold air bubbles under their [[Elytron|elytra]] that connect to their [[Spiracle (arthropods)|spiracles]] for them to use the trapped oxygen.<ref name="Short 187">{{Cite journal|last1=Short|first1=A. E. Z.|last2=McIntosh|first2=C. E.|date=2014-06-01|title=Review of the Giant Water Scavenger Beetle Genus Hydrophilus Geoffroy (Coleoptera: Hydrophilidae) of the United States and Canada|journal=The Coleopterists Bulletin|volume=68|issue=2|pages=187|doi=10.1649/0010-065x-68.2.187|s2cid=84497637 |issn=0010-065X}}</ref> They also have many fine hairs along their bodies that can trap oxygen. They can pull oxygen from the water into these areas on their body so that they can avoid returning to the surface for long periods of time. They only return to the surface when they need to replace the air they have acquired.<ref>{{Cite journal|last1=Robinson|first1=Ayanna|last2=Cherry|first2=Sabrina|last3=Elliott|first3=Michelle|last4=Davis|first4=Marsha|last5=Adams|first5=Grace|date=2016-06-15|title=Leveraging university-community partnerships in rural Georgia: A community health needs assessment template for hospitals|journal=Journal of the Georgia Public Health Association|volume=5|issue=4|pages=365–372|doi=10.21633/jgpha.5.409|issn=2471-9773|doi-access=free}}</ref> == Reproduction == Some species of hydrophilid beetles in the genus ''[[Tropisternus]]'' have complex methods of signaling and communication including chirps, clicks, buzzing, and various body postures. These behaviors can assist in courtship. [[Courtship display|Courtship behaviors]] have been observed in ''Tropisternus ellipticus'' in which the females produced audible buzzing and shaking to rebuff potential suitors. In response to the rejection maneuvers of the female, male ''T. ellipticus'' will mimic the buzzing and shaking, often learning from repeated encounters of this kind to avoid females that produce these behaviors. Males may remember these encounters for up to 39 minutes when properly reinforced, which suggests that they have some capability for recording short-term memory.<ref name=":4">{{Cite journal|last=Ryker|first=Lee C.|date=1994|title=Male Avoidance of Female Rejection: Learning in Tropisternus Solier Water Beetles (Coleoptera: Hydrophilidae)|journal=The Coleopterists Bulletin|volume=48|issue=3|pages=207–212|jstor=4009098|issn=0010-065X}}</ref> Typical courtship in these beetles consists of the following steps: 1. The male approaches the female, buzzing and swimming around her. 2. If the female is receptive, she will either chirp in response and move toward the male or remain still and silent. No rejection behavior occurs at this time. 3. The male approaches further and mounts the female. 4. The male will touch his maxillary [[Pedipalp|palps]] to that of the female while producing a buzzing sound. 5. If the female does not rebuff his advances, the male with move to the back and probe the abdomen of the female with his [[aedeagus]]. 6. If she is receptive, the female must lower her abdomen for the male to penetrate. Males mount other beetles indiscriminately, and homosexual copulation has been known to occur.<ref name=":4" /> ''[[Anacaena lutescens]]'', a species of hydrophilid beetle, has been observed as reproducing via [[parthenogenesis]]. Reproduction by parthenogenesis is relatively uncommon in other types of insects.<ref>{{Cite journal|last1=Angus|first1=Robert B.|last2=Jia|first2=Fenglong|date=2020-01-13|title=Triploidy in Chinese parthenogenetic Helophorus orientalis Motschulsky, 1860, further data on parthenogenetic H. brevipalpis Bedel, 1881 and a brief discussion of parthenogenesis in Hydrophiloidea (Coleoptera)|journal=Comparative Cytogenetics|language=en|volume=14|issue=1|pages=1–10|doi=10.3897/CompCytogen.v14i1.47656|issn=1993-078X|pmc=6971125|pmid=31988701 |doi-access=free }}</ref> == Life stages == In ''Enochrus quadripunctatus'', a species of hydrophilid beetle, it takes an average of 43 days for a newly hatched larva to reach its adult form. Juvenile mortality is high in this species, decreasing with each successive [[instar]].<ref name=":5">{{Cite journal|date=1995-12-01|title=Life History, Behavior and Morphology of the Immature Stages of ''Enochrus Quadripunctatus'' Herbst in the Laboratory (Coleoptera: Hydrophilidae) 11- Morphology|url=https://jsciences.ut.ac.ir/article_31260.html|journal=Journal of Sciences, Islamic Republic of Iran|volume=6|issue=4|issn=1016-1104}}</ref> Females will bury their silken egg case in the damp soil near a stream. Typically, the female will only create and lay one egg case per day, though they may create up to 20 egg cases in the weeks following a mating event and each case may produce from 1-32 individual larva. Females who have not mated will still create egg cases, but they will typically be empty or will not hatch at all. Not all egg cases laid by a mated female will hatch and produce viable offspring, but 42-70% will. Larval forms are carnivorous and may exhibit [[cannibalism]] among the individuals in a single egg case before hatching. The eggs begin to hatch an average of eight days after being laid. The egg hatches by way of the larvae eating their way out of the casing, usually by way of the lid. This process can take several days in some instances. Once the egg hatches, the first instar [[larva]]e will disperse, but will continue to feed on one another if the opportunity presents itself. They will remain in the first instar form for an average of 9.5 days before progressing to the second instar. Second instar individuals are much more robust, and voraciously feed on what meat they can find. They are strong swimmers at this stage and can be found at or beneath the surface of the stream. After an average of 11 days, they will transition to their third instar form. The third instar will last an average of 8.4 days, during which the larvae will continue feeding and become progressively slower as they reach their [[pupa]]tion stage. When they are ready to pupate, the larva will burrow into the sand where they will remain for 14 days before emerging as an adult. After vacating their burrow, the new adult will stand on the sand for up to 24 hours to allow its [[carapace]] to harden. Once fully hardened, the new fully grown adult beetle will travel to the water to hunt, where it will remain for the rest of its life.<ref name=":5" /> Although individuals of each species of hydrophilid (even those within the same [[genus]]) may vary in the duration of each of these life stages, mortality rates at each stage, and the number of offspring produced, few studies have been done to this effect on other species of hydrophilid.<ref name=":5" /> == Diet == Larval hydrophilids are predatory by nature and different species have different food consumption habits. The larvae usually ingest small [[invertebrate]]s and [[snail]]s but have been known to also eat small [[fish]] and [[tadpole]]s.<ref name=":0" /> ''Berosus ingeminatus'' prey mostly on ''[[Cricotopus sylvestris]]'' and other types of [[midge]]s while ''Tropisternus setiger'' are tactile hunters and will eat whatever prey comes their way; they may even abandon a meal for a new one if the opportunity arises.<ref name=":2" /> The predatory habits of this species are often left behind in the larval stage. Generally adult hydrophilids feed on various vegetation, alive or decaying, and will occasionally eat dead animal tissue.<ref name=":3" /> == Predators == Hydrophilids have many predators from a range of different species. Fish, birds, predaceous insects, and turtles are the main predators in their aquatic environments. Humans have also been known to eat hydrophilid beetles.<ref>{{Cite journal|last=Bameul|first=F|date=1993|title=Omicrini from Sulawesi Utara, Indonesia (Coleoptera : Hydrophilidae : Sphaeridiinae) |journal=Invertebrate Systematics|volume=7|issue=4|pages=751|doi=10.1071/it9930751|issn=1445-5226}}</ref> == Behavior == === Acoustic behavior === Member of the genus ''[[Tropisternus]]'' have been shown to perform acoustic sounds in their communicative behavior. Specific calls include stress calls, a male courtship call, a male copulating sound, and a female rejection buzz.<ref name="Ryker 1976 147–156"/> The sound production comes from the friction created by the beetle rubbing its spectrum (a well- defined ridge or lip) to its finely ridged surface called a pars [[Stridulation|stridens]] on the beetle's underside.<ref>{{Cite journal|last=Ryker|first=Lee|date=1972|title=Acoustic behavior of four sympatric species of water scavenger beetles (Coleoptera, Hydrophilidae, Tropisternus).|url=https://deepblue.lib.umich.edu/bitstream/handle/2027.42/57102/OP666.pdf?sequence=1|journal=Occasional Papers of the Museum of Zoology}}</ref> === Predatory behavior === Larval hydrophilids hunt a wide variety of prey such as [[copepod]]s, [[mosquito]] larvae, [[snail]]s, and conspecifics.<ref name=":0">{{Cite journal|last=Plague|first=Gordon R.|date=1996|title=Examination of the Feeding Behavior of Larval Tropisternus (Coleoptera: Hydrophilidae)|journal=Journal of the Kansas Entomological Society|volume=69|issue=1|pages=104–107|jstor=25085655|issn=0022-8567}}</ref> The larvae have a unique way of hunting by lifting their prey out of the water to consume it. The reason for this is not well known, but there is a suggestion that lifting the prey makes it more difficult for the prey to escape.<ref name=":0" /> In addition to lifting their prey out of the water, hydrophilid larvae choose specific vegetation to wait in so that they may ambush their prey.<ref name=":1">{{Cite journal|last1=Formanowicz|first1=Daniel R.|last2=Brodie|first2=Edmund D.|date=1988|title=Prey Density and Ambush Site Changes in Tropisternus lateralis Larvae (Coleoptera: Hydrophilidae)|journal=Journal of the Kansas Entomological Society|volume=61|issue=4|pages=420–427|jstor=25085034|issn=0022-8567}}</ref> In addition, the larvae often change ambush sites according to prey density. The frequency is directly correlated to the amount of prey in the ambush areas and specific attack sites.<ref name=":1" /> == Subfamilies == The classification to subfamilies and tribes was revised by Short and Fikáček in 2013:<ref name=":6">{{Cite journal|last1=Short|first1=Andrew Edward Z.|last2=Fikáček|first2=Martin|date=2013|title=Molecular phylogeny, evolution and classification of the Hydrophilidae (Coleoptera)|url=https://onlinelibrary.wiley.com/doi/abs/10.1111/syen.12024|journal=Systematic Entomology|language=en|volume=38|issue=4|pages=723–752|doi=10.1111/syen.12024|bibcode=2013SysEn..38..723S |s2cid=83050858 |issn=1365-3113}}</ref> * [[Acidocerini|Acidocerinae]] (revised by Girón and Short <ref>{{Cite journal|last1=Girón|first1=Jennifer C.|last2=Short|first2=Andrew Edward Z.|date=2021-06-18|title=The Acidocerinae (Coleoptera, Hydrophilidae): taxonomy, classification, and catalog of species|journal=ZooKeys|language=en|issue=1045 |pages=1–236|doi=10.3897/zookeys.1045.63810|issn=1313-2970|pmc=8233300|pmid=34228772|doi-access=free |bibcode=2021ZooK.1045....1G }}</ref>) *[[Chaetarthriinae]] *[[Cylominae]] (as Rygmodinae in;<ref name=":6" /> see <ref>{{Cite journal|last1=Seidel|first1=M.|last2=Arriaga-Varela|first2=E.|last3=Fikáček|first3=M.|date=2016|title=Establishment of Cylominae Zaitzev, 1908 as a valid name for the subfamily Rygmodinae Orchymont, 1916 with an updated list of genera (Coleoptera: Hydrophilidae)|url=https://www.biotaxa.org/AEMNP/article/view/22807/21741|journal=[[Acta Entomologica Musei Nationalis Pragae]]|volume=56|pages=159–165}}</ref>) *[[Enochrinae]] *[[Hydrophilinae]] * [[Sphaeridiinae]] == See also == * ''[[Hydrochara caraboides]]'' == Bibliography == * Short, A. E. Z. Fikáček, M. 2011: World catalogue of the Hydrophiloidea (Coleoptera): additions and corrections II (2006–2010). ''Acta Entomologica Musei Nationalis Pragae'', '''51'''(1): 83-122. [https://web.archive.org/web/20120226204526/http://www.aemnp.eu/PDF/51_1/ShortFikacekLQ.pdf PDF] == References == {{Reflist}} == External links == * {{Commons category-inline|Hydrophilidae}} * {{Wikispecies-inline|Hydrophilidae}} * {{cite web|url=http://eny3005.ifas.ufl.edu/lab1/Coleoptera/Hydrophilid.htm |title=Family Identification – Hydrophilidae |publisher=[[University of Florida]] |author=John L. Foltz |date=June 8, 2001 |url-status=dead |archive-url=https://web.archive.org/web/20070502113320/http://eny3005.ifas.ufl.edu/lab1/Coleoptera/Hydrophilid.htm |archive-date=May 2, 2007 }} {{Coleoptera|4}} {{Taxonbar|from=Q839281}} {{Authority control}} [[Category:Hydrophilidae| ]] [[Category:Beetle families]] </textarea><div class="templatesUsed"><div class="mw-templatesUsedExplanation"><p><span id="templatesused">Pages transcluded onto the current version of this page<span class="posteditwindowhelplinks"> (<a href="/wiki/Help:Transclusion" title="Help:Transclusion">help</a>)</span>:</span> </p></div><ul> <li><a href="/wiki/Template:;" title="Template:;">Template:;</a> (<a href="/w/index.php?title=Template:;&action=edit" title="Template:;">view source</a>) (template editor protected)</li><li><a href="/wiki/Template:Anglicise_rank" title="Template:Anglicise rank">Template:Anglicise rank</a> (<a href="/w/index.php?title=Template:Anglicise_rank&action=edit" title="Template:Anglicise 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