Polydrusus tereticollis
This record describes Polydrusus tereticollis (species). Recorded family: Curculionidae. Recorded order: Coleoptera.
Identification and Appearance

Size 4 to 6 mm. A brown species with a rather dappled appearance. Unless identified by a recognised expert, photographic evidence is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used. Note the beetle's size and describe the identifying characters. It is advisable to retain the specimen in case further checks are needed. Woodland, especially where Oak and Birch are present. April to October with a peak around May and June. Widespread but sometimes rather local in Britain.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera
- Family
- Curculionidae
- Genus
- Polydrusus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Woodland, especially where Oak and Birch are present.
Seasonal Activity
April to October with a peak around May and June.
Diet and Behavior
Life History
Lives in deciduous trees.
Additional species information
Recorded status
Widespread but sometimes rather local in Britain.
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Polydrusus tereticollis. 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 Polydrusus tereticollis (6)
Frequently Asked Questions About Polydrusus tereticollis
What is Polydrusus tereticollis?
Polydrusus tereticollis is a species in the family Curculionidae, within the order Coleoptera.
How big is Polydrusus tereticollis?
4 to 6 mm. A brown species with a rather dappled appearance.
Where is Polydrusus tereticollis found?
Habitat: Woodland, especially where Oak and Birch are present.
When is Polydrusus tereticollis active?
Polydrusus tereticollis: seasonal activity - April to October with a peak around May and June..
What is the life cycle of a Polydrusus tereticollis?
Lives in deciduous trees.
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