Ash Bark Beetle
Hylesinus varius
This record describes Hylesinus varius (species). Recorded family: Curculionidae. Recorded order: Coleoptera.
Identification and Appearance
Hylesinus varius (formerly Leperisinus fraxini ) and H. wachtli (formerly L.orni ) can only be distinguished by microscopic examination. H. varius has coarse suberect setae on the sides of the elytra that are clearly visible from above and a more elongate antennal club. 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. A wood boring beetle associated with Ash. Most records come from the southern half of Britain.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera
- Family
- Curculionidae
- Genus
- Hylesinus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Anywhere that Ash is present.
Seasonal Activity
All year round.
Diet and Behavior
Life History
A wood boring beetle associated with Ash.
Additional species information
Recorded status
Most records come from the southern half of Britain.
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Hylesinus varius. 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.
Frequently Asked Questions About Ash Bark Beetle
What is Ash Bark Beetle?
Ash Bark Beetle (Hylesinus varius) is a species in the family Curculionidae, within the order Coleoptera.
Where is Ash Bark Beetle found?
Habitat: Anywhere that Ash is present.
When is Ash Bark Beetle active?
Ash Bark Beetle: seasonal activity - All year round..
What is the life cycle of a Ash Bark Beetle?
A wood boring beetle associated with Ash.