Thryogenes nereis
This record describes Thryogenes nereis (species). Recorded family: Erirhinidae. Recorded order: Coleoptera.
Identification and Appearance
3 to 4.5mm. A rather variable wetland weevil. The elytra usually have a rather mottled appearance, but may range from greyish, to brown or greenish in colour. It is usually found on Spike-rush, Eleocharis palustris Other Thryogenes species are very similar Please provide a photograph to support your record, and retain the specimen until identification has been confirmed. Note the plant and habitat from which it was collected. Wetland areas with spike-rush and other species in the Cyperaceae family The larvae can be found in the lower stems of Cyperaceae species. No additional images available for this species.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera
- Family
- Erirhinidae
- Genus
- Thryogenes
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Wetland areas with spike-rush and other species in the Cyperaceae family
Seasonal Activity
Can occur in most months.
Diet and Behavior
Life History
The larvae can be found in the lower stems of Cyperaceae species.
Additional species information
Recorded status
Widespread in England and Wales.
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Thryogenes nereis. 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 Thryogenes nereis (2)
Frequently Asked Questions About Thryogenes nereis
What is Thryogenes nereis?
Thryogenes nereis is a species in the family Erirhinidae, within the order Coleoptera.
Where is Thryogenes nereis found?
Habitat: Wetland areas with spike-rush and other species in the Cyperaceae family
When is Thryogenes nereis active?
Thryogenes nereis: seasonal activity - Can occur in most months..
What is the life cycle of a Thryogenes nereis?
The larvae can be found in the lower stems of Cyperaceae species.