ColeopteraDytiscidae – Predaceous Diving Beetles

Hygrotus marklini

This record describes Hygrotus marklini (species). Recorded family: Dytiscidae. Recorded order: Coleoptera.

Identification and Appearance

Hygrotus marklini - Hygrotus marklini
Contributed by Tim Loh; Additional contributions by Claude Tessier

A rather uniformly coloured Hygrotus- dorsally brown to piceous (Very dark reddish brown) in colour, ventrally mainly black; head dark with an isolated pale spot on the frons; pronotum pale yellow brown anteriorly, darkened posteriorly; elytron punctation of uniform size

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Adephaga
Family
Dytiscidae (Predaceous Diving Beetles)
Subfamily
Hydroporinae
Tribe
Hygrotini
Genus
Hygrotus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Generally in vernal/temporary ponds with plenty of emergent vegetation; has been recorded from saline environments .

Geographic Range

A Holarctic species; In North America, across Canada and Alaska and in parts of the northcentral US .

Additional species information

Species notes from the sources

Etymology: Hygrotus marklini (Gyllenhal, 1813)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Hygrotus marklini. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

Explore Coleoptera families and species →

Photos of Hygrotus marklini (5)

Hygrotus marklini - photo 1
Contributed by Tim Loh; Additional contributions by Claude Tessier
Hygrotus marklini - photo 2
Contributed by Tim Loh; Additional contributions by Claude Tessier
Hygrotus marklini - photo 3
Contributed by Tim Loh; Additional contributions by Claude Tessier
Hygrotus marklini - photo 4
Contributed by Tim Loh; Additional contributions by Claude Tessier
Hygrotus marklini - photo 5
Contributed by Tim Loh; Additional contributions by Claude Tessier

Photo credits: Contributed by Tim Loh; Additional contributions by Claude Tessier

Frequently Asked Questions About Hygrotus marklini

What is Hygrotus marklini?

Hygrotus marklini is a species in the family Dytiscidae, within the order Coleoptera.

How big is Hygrotus marklini?

3.1-4 mm

How do you identify Hygrotus marklini?

A rather uniformly coloured Hygrotus- dorsally brown to piceous (Very dark reddish brown) in colour, ventrally mainly black; head dark with an isolated pale spot on the frons; pronotum pale yellow brown anteriorly, darkened posteriorly; elytron punctation of uniform size

Where is Hygrotus marklini found?
FeatureDetails
HabitatGenerally in vernal/temporary ponds with plenty of emergent vegetation; has been recorded from saline environments .
RangeA Holarctic species; In North America, across Canada and Alaska and in parts of the northcentral US .

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Tim Loh; Additional contributions by Claude Tessier. Contributors retain copyright over their individual contributions.