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

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.
Photos of Hygrotus marklini (5)
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?
| Feature | Details |
|---|---|
| Habitat | Generally in vernal/temporary ponds with plenty of emergent vegetation; has been recorded from saline environments . |
| Range | A Holarctic species; In North America, across Canada and Alaska and in parts of the northcentral US . |
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