Crawling-water-beetle
Guides
Brychius
crawling water beetles
Brychius is a genus of small aquatic beetles in the family Haliplidae, commonly known as crawling water beetles. The genus comprises five recognized species distributed across parts of Europe and North America. One species, Brychius hungerfordi, is federally endangered in the United States. Members of this genus inhabit freshwater environments and are associated with aquatic vegetation.
Haliplidae
Crawling Water Beetles, haliplids
Haliplidae is a family of small aquatic beetles comprising approximately 200 species in five genera, representing the sole extant member of the superfamily Haliploidea. These beetles are characterized by their distinctive swimming behavior using alternating leg movements, which renders them relatively clumsy swimmers compared to other aquatic beetles. Consequently, they predominantly move by crawling along substrates rather than swimming. The family exhibits a cosmopolitan distribution in freshwater habitats worldwide.
Haliplus cribrarius
Haliplus cribrarius is a species of crawling water beetle in the family Haliplidae. The species was described by LeConte in 1850 and occurs in North America. Records indicate presence in western Canada including Alberta and British Columbia. Like other haliplids, it is associated with aquatic environments.
Haliplus deceptus
Haliplus deceptus is a species of crawling water beetle in the family Haliplidae. The species was described by Matheson in 1912. Records indicate presence in North America and Middle America. As with other members of the genus Haliplus, this species is associated with aquatic environments.
Haliplus fulvus
Haliplus fulvus is a species of crawling water beetle in the family Haliplidae, widely distributed across Europe and North America. Adults are small beetles measuring 3.8–4.2 mm in length. The species is associated with aquatic habitats and has a holarctic distribution pattern.
Haliplus gracilis
crawling water beetle
Haliplus gracilis is a species of crawling water beetle in the family Haliplidae, described by Roberts in 1913. The species belongs to a genus of small aquatic beetles commonly found in freshwater habitats. Like other haliplids, it is adapted to life in and around water, with morphology suited for crawling rather than swimming.
Haliplus leopardus
Haliplus leopardus is a crawling water beetle in the family Haliplidae, first described by Roberts in 1913. The species is recorded from eastern North America, with confirmed observations in New Brunswick and Nova Scotia, Canada. As a member of Haliplidae, it inhabits freshwater environments. Very few observations of this species have been documented, with only three records in iNaturalist as of the knowledge cutoff.
Haliplus longulus
crawling water beetle
Haliplus longulus is a species of crawling water beetle in the family Haliplidae. It occurs in North America with confirmed records from western Canada including Alberta and British Columbia. Like other members of Haliplidae, it inhabits aquatic environments. The species was described by LeConte in 1850. Observations remain sparse with only three documented records in iNaturalist.
Haliplus mimeticus
Warm Springs Crawling Water Beetle
Haliplus mimeticus is a small aquatic beetle in the family Haliplidae, commonly known as crawling water beetles. This species was described by Matheson in 1912 and is known from North and Middle America. It is associated with warm spring habitats, as suggested by its common name. The genus Haliplus comprises small beetles that inhabit aquatic environments, often found in vegetation at the margins of ponds, lakes, and slow-moving waters.
Haliplus pantherinus
Haliplus pantherinus is a species of crawling water beetle in the family Haliplidae. It is known from North America, with confirmed records from Canada (New Brunswick, Nova Scotia) and the United States. As a member of Haliplidae, it is associated with aquatic or semi-aquatic habitats. The species was described by Aubé in 1838.
Haliplus parvulus
Haliplus parvulus is a species of crawling water beetle in the family Haliplidae. Members of this genus are small, semi-aquatic beetles associated with freshwater habitats. Very few observations of this species exist in public databases.
Haliplus robertsi
crawling water beetle
Haliplus robertsi is a species of crawling water beetle in the family Haliplidae, first described by Zimmermann in 1924. The species is currently accepted as valid, though some taxonomic sources have historically treated it as a synonym of Haliplus (Haliplus) immaculicollis. As a member of the Haliplidae, it belongs to a family of small aquatic beetles commonly found in freshwater habitats. Like other haliplids, it is adapted to life in aquatic environments with specialized morphological features.
Haliplus salmo
crawling water beetle
Haliplus salmo is a species of crawling water beetle in the family Haliplidae, described by Wallis in 1933. The species is currently accepted according to GBIF, though Catalogue of Life lists it as a synonym of Haliplus leechi. It belongs to the subgenus Liaphlus within the genus Haliplus. Distribution records indicate its presence in North America.
Haliplus stagninus
Haliplus stagninus is a species of crawling water beetle in the family Haliplidae, described by Leech in 1948. It is known from North America, with records from the Canadian provinces of Alberta and British Columbia. As a member of Haliplidae, it belongs to a family of small aquatic beetles commonly associated with standing or slow-moving freshwater habitats. The species is poorly documented in public sources, with minimal observational data available.
Haliplus subguttatus
Haliplus subguttatus is a species of crawling water beetle in the family Haliplidae, described by Roberts in 1913. Its taxonomic status is disputed between sources: Catalogue of Life lists it as a synonym, while GBIF treats it as accepted. The species belongs to the subgenus Liaphlus within Haliplus. Haliplidae beetles are small, aquatic adephagans found in freshwater habitats.
Haliplus tumidus
Haliplus tumidus is a species of crawling water beetle first described by LeConte in 1880. It belongs to the family Haliplidae, a group of small aquatic beetles commonly found in shallow freshwater habitats. The species has been documented in the Caribbean, Middle America, and North America based on distribution records.
Peltodytes callosus
Peltodytes callosus is a species of crawling water beetle in the family Haliplidae, first described by LeConte in 1852. It belongs to a genus of small aquatic beetles adapted to life in shallow water environments. The species is documented from North America, with distribution records extending into Middle America.
Peltodytes dietrichi
Peltodytes dietrichi is a species of crawling water beetle in the family Haliplidae, first described by Young in 1961. It belongs to a genus of small aquatic beetles adapted to life in shallow water environments. The species is known from North America, with confirmed records from Québec, Canada.
Peltodytes dispersus
Peltodytes dispersus is a species of crawling water beetle in the family Haliplidae, described by Roberts in 1913. It is currently recognized as a valid species within the genus Peltodytes, though some sources list it as a synonym of Peltodytes simplex. The species has been recorded from North America.
Peltodytes duodecimpunctatus
A small crawling water beetle in the family Haliplidae. Adults are recognized by the distinctive pattern of dark spots on the pale elytra. The species occurs in freshwater habitats across eastern and central North America. It is one of the more frequently encountered Peltodytes species in the region.
Peltodytes festivus
Peltodytes festivus is a species of crawling water beetle in the family Haliplidae. It occurs in North America. Members of this family are semi-aquatic, inhabiting the margins of ponds, lakes, and slow-moving streams where they feed on algae and detritus. The genus Peltodytes is distinguished from other haliplid genera by morphological features of the elytra and hind legs.
Peltodytes litoralis
Peltodytes litoralis is a species of crawling water beetle in the family Haliplidae, described by Matheson in 1912. It belongs to a genus of small, semiaquatic beetles associated with freshwater habitats. The species is known from North America, with records from New Brunswick, Canada. Like other haliplids, it likely inhabits shallow, vegetated freshwater margins.
Peltodytes oppositus
Peltodytes oppositus is a species of crawling water beetle in the family Haliplidae, first described by Roberts in 1913. The genus Peltodytes contains approximately 20 species distributed across North America. Members of this genus are aquatic beetles associated with freshwater habitats. The specific epithet "oppositus" distinguishes this species from congeners, though detailed biological studies remain limited.
Peltodytes pedunculatus
Peltodytes pedunculatus is a species of crawling water beetle in the family Haliplidae. Members of this family are small, oval beetles adapted to aquatic environments with well-developed hind legs for swimming. The species was described by Clark in 1862 from North American material.
Peltodytes sexmaculatus
six-spotted crawling water beetle
Peltodytes sexmaculatus is a species of crawling water beetle in the family Haliplidae, first described by Roberts in 1913. The species name refers to the six-spotted pattern on its elytra. It is found in North America and is one of approximately 20 species in the genus Peltodytes. Like other haliplids, it inhabits aquatic environments and is capable of crawling through submerged vegetation.
Peltodytes simplex
Peltodytes simplex is a species of crawling water beetle in the family Haliplidae, first described by LeConte in 1852. It is one of approximately 20 species in the genus Peltodytes, which are characterized by their association with aquatic habitats and distinctive morphological adaptations for swimming. The species occurs in North America and Middle America, though detailed biological information remains limited in published literature.
Peltodytes tortulosus
Peltodytes tortulosus is a species of crawling water beetle in the family Haliplidae, described by Roberts in 1913. The species occurs in North America, with records from western Canada including Alberta and British Columbia. As a member of the Haliplidae, it inhabits aquatic environments and exhibits the characteristic crawling behavior of this beetle family.