Dytiscidae
Guides
Laccophilus maculosus maculosus
A subspecies of predaceous diving beetle in the family Dytiscidae. Like other members of the genus Laccophilus, it is an aquatic beetle adapted to freshwater habitats. The specific epithet 'maculosus' refers to spotted or maculate patterning typical of this taxon.
Laccophilus maculosus shermani
Laccophilus maculosus shermani is a subspecies of predaceous diving beetle in the family Dytiscidae. It belongs to the genus Laccophilus, a group of small diving beetles commonly found in aquatic habitats. The subspecies was described by Leech in 1944. As a member of the subfamily Laccophilinae, it shares characteristics with other Laccophilus species, including adaptations for underwater predation. Specific distinguishing features of this subspecies compared to the nominate form remain poorly documented in available sources.
Laccophilus pictus
Laccophilus pictus is a species of predaceous diving beetle in the family Dytiscidae. It is found in the Neotropics, with distribution records spanning Middle America and North America. The species was described by Laporte in 1835 and includes three recognized subspecies: L. p. pictus (the nominate subspecies), L. p. coccinelloides, and L. p. insignis.
Laccophilus pictus coccinelloides
Laccophilus pictus coccinelloides is a subspecies of diving beetle in the family Dytiscidae, first described by Régimbart in 1889. It belongs to the genus Laccophilus, a group of small predatory diving beetles commonly found in aquatic habitats. The subspecies epithet 'coccinelloides' suggests a resemblance to ladybird beetles (Coccinellidae), likely referring to coloration or patterning. Like other members of its genus, this beetle is adapted to freshwater environments where it preys on small aquatic organisms.
Laccophilus pictus insignis
Laccophilus pictus insignis is a subspecies of diving beetle in the family Dytiscidae, described by Sharp in 1882. It belongs to the genus Laccophilus, a group of small predatory diving beetles commonly known as water beetles. The subspecies is distributed across Middle America and North America. As with other members of its genus, it is likely an aquatic predator inhabiting freshwater environments, though specific ecological details for this subspecies remain poorly documented in available sources.
Laccophilus quadrilineatus
Laccophilus quadrilineatus is a species of predaceous diving beetle described by Horn in 1871. It belongs to the family Dytiscidae, a group of aquatic beetles adapted to life in freshwater environments. The species is distributed across North America and the Neotropics. Three subspecies are recognized: L. q. quadrilineatus (the nominate form), L. q. mayae, and L. q. tehuanensis.
Laccophilus salvini
Laccophilus salvini is a species of predaceous diving beetle in the family Dytiscidae, subfamily Laccophilinae. The species was described by Sharp in 1882 and is recorded from Middle America. As a member of Laccophilus, it belongs to a genus of small diving beetles commonly found in aquatic habitats. Specific biological details for this species remain poorly documented.
Laccophilus schwarzi
Laccophilus schwarzi is a predaceous diving beetle in the family Dytiscidae, described by Fall in 1917. It belongs to the genus Laccophilus, a diverse group of small to medium-sized diving beetles found in aquatic habitats. The species is known from North America, though specific details about its ecology and distribution remain limited in available literature.
Laccophilus sonorensis
Laccophilus sonorensis is a species of predaceous diving beetle in the family Dytiscidae, described by Zimmerman in 1970. It belongs to the genus Laccophilus, a group of small to medium-sized diving beetles commonly found in aquatic habitats. The species is distributed in Middle America. Very little specific information is available about its biology or ecology.
Laccophilus vacaensis
Laccophilus vacaensis is a predaceous diving beetle in the family Dytiscidae, first described by Young in 1953. The species is distributed across North America and the Neotropics. It is one of three recognized subspecies within the L. vacaensis complex, alongside L. v. chihuahuae and L. v. thermophilus.
Leconectes striatellus
Leconectes striatellus is a species of predaceous diving beetle in the family Dytiscidae. The species was originally described as Hydroporus striatellus by LeConte in 1852 and later transferred to the genus Leconectes. It occurs in freshwater aquatic habitats across North and Middle America. As a member of the subfamily Hydroporinae, it represents a lineage of small to medium-sized diving beetles.
Liodessus
Liodessus is a genus of small diving beetles in the family Dytiscidae, tribe Bidessini. Species occur across the Americas from North America through the Andes to southern South America, with notable diversity in high-altitude wetlands and páramo ecosystems. Many species inhabit shallow, exposed pools and temporary water bodies, showing phenotypic plasticity in body form correlated with habitat permanence. The genus contains numerous species, with several new species described from the high Andes of Peru and Colombia in recent years. Taxonomic resolution relies heavily on male genital morphology.
diving-beetleaquatic-insecthigh-altitudepáramoAndesphenotypic-plasticityBidessiniHydroporinaeDytiscidaeColeopterawetlandtemporary-poolpeatlandsubantarctictaxonomymale-genitaliaCOI-barcodecryptic-speciesincipient-speciationhybridizationgeometric-morphometricsenvironmental-sentineldrought-indicatorSouth-AmericaNorth-AmericaFijiNavarino-IslandMagallanesPeruColombiaChileArgentinaBoliviaBogotáJunínCuscoHuánucoCundinamarcaSumapazPunasteppepeat-bogshallow-poolpuddlealtitude-3400-4900mL.-affinis-complexL.-bogotensis-complexL.-chilensisL.-affinisL.-obscurellusL.-noviaffinisL.-saratogaeL.-picinusL.-santarositaL.-alpinusL.-hauthiL.-rhigosL.-thespesiosGuignot-1939ZimmermannSharpLeConteSaySteinheilRégimbartBiströmMillerBalkeFranciscoloSanfilippoPederzaniNilssonYoungClarkHatchMannerheimCaseyAubéBalfour-BrowneBrinckPeschetSolierWhiteZootaxaZooKeysInsect-Systematics-&-EvolutionAnales-del-Instituto-de-la-PatagoniaPLoS-ONEGBIFiNaturalistCatalogue-of-LifeNCBI-TaxonomyBOLDBarcode-of-Life-Data-SystemCOImitochondrial-DNAphylogeographypopulation-structurerange-expansionlineagegenetic-structuresubspecieslectotypeneotypesynonymynew-speciesnew-subspeciesrevisionmorphometricsallometrybody-sizebody-shapeelytrapronotumstriaecolorationpunctationhabitusoccipital-linegenital-morphologyaedeagusparamerediagnosisidentification-keytype-localitytype-specimenetymologybionomicsnatural-historygeographic-distributiondistribution-mapNearcticNeotropicalPatagoniaCape-Horn-Biosphere-Reservedroughtclimate-changeenvironmental-changesentinel-speciesplasticityadaptationphenotypic-variationhydrological-landscapewater-permanencepoolbogAltiplanoAndeanhigh-elevationmontanealpineaquaticfreshwaterlenticloticinsectbeetleAdephagaLiodessusLiodessus cantralli
Cantrall's bog beetle, Cantrall's Bog-beetle
Liodessus cantralli, known as Cantrall's bog beetle, is a small predaceous diving beetle in the family Dytiscidae. It belongs to the tribe Bidessini within the subfamily Hydroporinae. The species was described by Young in 1953 and was originally placed in the genus Bidessus. It occurs in bog habitats in parts of North America, with confirmed records from the Canadian provinces of Alberta and Manitoba.
Liodessus crotchi
Liodessus crotchi is a species of predaceous diving beetle in the family Dytiscidae, first described by Nilsson in 2001. It is known from North America, with distribution records from Labrador and Manitoba in Canada. As a member of the Bidessini tribe within Hydroporinae, it belongs to a diverse group of small diving beetles. Very little species-specific information has been published beyond taxonomic description and basic distribution.
Liodessus flavicollis
Liodessus flavicollis is a species of predaceous diving beetle (Coleoptera: Dytiscidae) described by LeConte in 1855. The species belongs to the tribe Bidessini within the subfamily Hydroporinae, a group of small diving beetles commonly found in freshwater habitats. The specific epithet flavicollis refers to the yellowish coloration of the pronotum. The genus Liodessus contains numerous small-bodied species that are often challenging to distinguish without detailed examination.
Liodessus noviaffinis
Liodessus noviaffinis is a small predaceous diving beetle described in 1998 from Florida. It belongs to the L. affinis species complex, a group of four closely related North American species that are difficult to distinguish based on external morphology. The species is known from the eastern United States and Canada, with records from New Brunswick and Nova Scotia. Male genitalia provide the only reliable means of identification.
Lioporeus pilatei
Lioporeus pilatei is a species of predaceous diving beetle in the family Dytiscidae. It was originally described as Hydroporus pilatei by Fall in 1917 before being transferred to the genus Lioporeus. The species is known from North America. As a member of Dytiscidae, it is an aquatic predator.
Lioporeus triangularis
Lioporeus triangularis is a species of predaceous diving beetle in the family Dytiscidae. Originally described as Hydroporus triangularis by Fall in 1917, it was later transferred to the genus Lioporeus. The species is known from North America and belongs to the subfamily Hydroporinae, a diverse group of small to medium-sized diving beetles.
Matinae
Matinae is a subfamily of predaceous diving beetles within the family Dytiscidae. It contains at least 3 genera (Allomatus, Batrachomatus, and Matus) and approximately 10 described species. These beetles are aquatic predators found in freshwater habitats.
Matus
Matus is a genus of predaceous diving beetles in the family Dytiscidae, subfamily Matinae. First described by Aubé in 1836, this genus belongs to the tribe Matini. Members of this genus are aquatic beetles adapted to life in freshwater environments. The genus contains multiple species distributed across various regions.
Matus bicarinatus
Matus bicarinatus is a predaceous diving beetle in the family Dytiscidae. It belongs to the subfamily Matinae, a group of specialized diving beetles. The species is documented from North America, with records from Ontario, Canada. Knowledge of its biology remains limited due to few observations.
Meridiorhantus calidus
Meridiorhantus calidus is a predaceous diving beetle in the family Dytiscidae. The species was transferred from the genus Rhantus to Meridiorhantus based on phylogenetic studies. It is found in North America and the Neotropics. The species was originally described by Fabricius in 1792 as Dytiscus calidus.
Metaxydytes fraternus
Metaxydytes fraternus is a species of predaceous diving beetle in the family Dytiscidae. It belongs to a small genus of aquatic beetles found in the Neotropical region. Very few observations of this species have been documented, with only six records currently available.
Mystonectes titulus
Mystonectes titulus is a species of diving beetle in the family Dytiscidae, subfamily Hydroporinae. It is a small predatory aquatic beetle inhabiting freshwater environments. The species was described by Leech in 1945 and is known from North America.
Nartus sinuatus
Nartus sinuatus is a predaceous diving beetle in the family Dytiscidae, found in North America. The species was transferred from the genus Rhantus to Nartus based on phylogenetic revisions. It is a small to medium-sized aquatic beetle with distinctive morphological features useful for identification.
Nebrioporus
Nebrioporus is a genus of diving beetles (Dytiscidae) established by Régimbart in 1906. The genus has been divided into eight species-groups based on morphological character analysis, replacing historical subgeneric divisions. It contains numerous species distributed across Europe, North Africa, the Middle East, and Asia, with the N. depressus-group being the most speciose.
Nebrioporus depressus
Nebrioporus depressus is a predaceous diving beetle (Coleoptera: Dytiscidae) first described by Fabricius in 1775. It belongs to the N. depressus-group, the most speciose species-group within the genus Nebrioporus. The species is distributed across the Holarctic region, occurring in Europe, Northern Asia (excluding China), and North America. As a member of Dytiscidae, it is adapted to aquatic habitats where it functions as an active predator.
Nebrioporus macronychus
Nebrioporus macronychus is a predaceous diving beetle in the family Dytiscidae. The species was described by Shirt & Angus in 1992. It belongs to the genus Nebrioporus, a group of small to medium-sized diving beetles primarily associated with running waters. The specific epithet 'macronychus' refers to enlarged claws, a distinctive morphological feature of this species.
Nebrioporus rotundatus
Nebrioporus rotundatus is a species of diving beetle in the family Dytiscidae, occurring in North America. It belongs to a genus of small predaceous diving beetles commonly found in freshwater habitats. The species was described by LeConte in 1863 and is currently accepted as valid.
Nectoboreus
Nectoboreus is a genus of diving beetles in the family Dytiscidae, subfamily Hydroporinae. The genus was described in 2018 by Fery and Ribera based on species previously assigned to other genera, particularly within the Deronectina subtribe. Members of this genus are small to medium-sized predatory aquatic beetles. As a recently established genus, its species-level taxonomy and biology remain under investigation.
Nectoporus crassulus
Nectoporus crassulus is a species of predaceous diving beetle (family Dytiscidae) described by Fall in 1923. It belongs to the subfamily Hydroporinae, a diverse group of small to medium-sized diving beetles. The genus Nectoporus is part of the subtribe Deronectina, which contains species primarily associated with freshwater habitats.
Neobidessus pullus
Neobidessus pullus is a small predaceous diving beetle in the family Dytiscidae. The species occurs across North America and extends into the Neotropics. Two subspecies are recognized: the nominate N. p. pullus and N. p. floridanus described from Florida. As a member of the tribe Bidessini, it inhabits aquatic environments where it functions as an active predator.
Neoclypeodytes
Neoclypeodytes is a genus of small diving beetles in the family Dytiscidae, tribe Bidessini, distributed across western North America and northern Central America. The genus was revised in 2001, with 25 valid species recognized and 11 new species described. A single synapomorphy—two maculae on each elytron—supports its monophyly. Relationships to other bidessine genera remain unresolved.
Neoclypeodytes amybethae
Neoclypeodytes amybethae is a species of predaceous diving beetle in the family Dytiscidae, described by K. B. Miller in 2001 as part of a comprehensive revision of the New World genus Neoclypeodytes. The genus contains 25 valid species distributed in western North America and northern Central America. Species in this genus are characterized by a distinctive pattern of two maculae on each elytron, which represents a possible synapomorphy supporting the monophyly of Neoclypeodytes.
Neoclypeodytes cinctellus
Neoclypeodytes cinctellus is a small predaceous diving beetle in the family Dytiscidae. It is distributed across western North America and northern Central America. The species has been documented as a predator of the critically endangered Devils Hole pupfish (*Cyprinodon diabolis*), representing a notable conservation concern. It was formerly described under the name *N. centralis* before being synonymized.
Neoclypeodytes haroldi
Neoclypeodytes haroldi is a species of predaceous diving beetle in the family Dytiscidae, described by K.B. Miller in 2001 as part of a comprehensive revision of the genus Neoclypeodytes. The genus is characterized by a distinctive pattern of two maculae on each elytron, which serves as a possible synapomorphy supporting its monophyly. N. haroldi is one of 25 recognized valid species in this western North American and northern Central American genus.
Neoclypeodytes leachi
Neoclypeodytes leachi is a species of predaceous diving beetle in the family Dytiscidae, first described by Leech in 1948. It belongs to the genus Neoclypeodytes, a group of small diving beetles within the tribe Bidessini. The species is known from North America, though specific details about its biology and ecology remain limited in published literature.
Neoclypeodytes ornatellus
Neoclypeodytes ornatellus is a small diving beetle (Coleoptera: Dytiscidae) in the tribe Bidessini. The species was described by Fall in 1917 and is part of a western North American genus characterized by distinctive elytral maculation patterns. A lectotype was designated for this species in a 2001 revision of the genus.
Neoclypeodytes plicipennis
Neoclypeodytes plicipennis is a predaceous diving beetle in the family Dytiscidae, first described by Crotch in 1873. It belongs to a western North American and northern Central American genus characterized by a distinctive pattern of two maculae on each elytron. A lectotype was designated for this species during the 2001 revision of the genus.
Neoclypeodytes quadripustulatus
A small diving beetle in the genus Neoclypeodytes, characterized by the distinctive elytral pattern of four maculae (two per elytron) that is diagnostic for the genus. The species was described by Fall in 1917 and occurs in western North America. A lectotype was designated in the 2001 revision by Young.
Neoclypeodytes roughleyi
Neoclypeodytes roughleyi is a species of small diving beetle described by K.B. Miller in 2001 during a comprehensive revision of the genus Neoclypeodytes. It is one of eleven new species described in that revision, which recognized 25 valid species in this western North American and northern Central American genus. The genus is characterized by a distinctive pattern of two maculae on each elytron, the only known synapomorphy supporting its monophyly. As a member of the Bidessini tribe within Hydroporinae, it belongs to a group of small, often overlooked aquatic beetles.
Neoporus arizonicus
Neoporus arizonicus is a species of predaceous diving beetle in the family Dytiscidae, subfamily Hydroporinae. First described by Fall in 1917 under the basionym Hydroporus arizonicus, this species is currently classified in the genus Neoporus. It is a small diving beetle known from the southwestern United States, with Arizona representing the core of its known distribution. Like other members of the Hydroporinae, it is adapted to aquatic habitats where it preys on small invertebrates.
Neoporus gaudens
Neoporus gaudens is a small diving beetle in the family Dytiscidae, subfamily Hydroporinae. The species was described by Fall in 1923 and is currently accepted as valid. Like other members of the genus Neoporus, it is presumed to be an aquatic predator inhabiting freshwater systems. Available records indicate presence in North America, though detailed biological information remains limited.
Neoporus hebes
Neoporus hebes is a small diving beetle (family Dytiscidae) described by Fall in 1923. As a member of the subfamily Hydroporinae, it inhabits freshwater aquatic environments. The genus Neoporus comprises numerous small dytiscid species found primarily in North America. This species is among the lesser-documented members of the genus, with limited observational records available.
Neoporus hybridus
Neoporus hybridus is a diving beetle species in the family Dytiscidae, first described by Aubé in 1838. Originally placed in the genus Hydroporus, it was later transferred to Neoporus. The species belongs to the subfamily Hydroporinae, a diverse group of small to medium-sized predatory aquatic beetles. Records indicate presence in North America, though detailed biological studies appear limited in the available literature.
Neoporus mellitus
Neoporus mellitus is a small predaceous diving beetle (family Dytiscidae) in the subfamily Hydroporinae. Originally described by LeConte in 1855 as Hydroporus mellitus, the species was later transferred to the genus Neoporus. It is recorded from eastern North America, with confirmed observations in New Brunswick and Ontario, Canada. Like other members of the genus, it inhabits freshwater aquatic environments.
Neoporus shermani
Neoporus shermani is a predaceous diving beetle in the family Dytiscidae, described by Fall in 1917. It belongs to the subfamily Hydroporinae, a group of small to medium-sized diving beetles. The species is recorded from North America, though specific habitat and ecological details remain poorly documented.
Neoporus sulcipennis
Neoporus sulcipennis is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Neoporus superioris
Neoporus superioris is a species of predaceous diving beetle in the family Dytiscidae, first described by J. Balfour-Browne in 1944 under the basionym Hydroporus superioris. The species belongs to the subfamily Hydroporinae, a diverse group of small to medium-sized diving beetles. It is known from North America with confirmed records from Alberta and British Columbia in Canada.
Neoporus undulatus
Neoporus undulatus is a predaceous diving beetle in the family Dytiscidae. It is found in North America, with records from Canada (Alberta, British Columbia) and the United States. The species was first described by Thomas Say in 1823. As a member of the Hydroporinae subfamily, it belongs to a diverse group of small to medium-sized diving beetles that inhabit aquatic environments.