Temnocerus nanus
This record describes Temnocerus nanus (species). Recorded family: Rhynchitidae. Recorded order: Coleoptera.
Identification and Appearance
A very tiny blackish weevil with studded elytra. There are several very similar weevils which coupled to the small size makes it hard to be sure of the identify from a photo alone. However habitat information is helpful, and this species is nearly always found on Birch. 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. Usually an arboreal species and often found on birch. A leaf rolling weevil largely associated with birch. No additional images available for this species.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera
- Family
- Rhynchitidae
- Genus
- Temnocerus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Usually an arboreal species and often found on birch.
Seasonal Activity
Spring to autumn.
Diet and Behavior
Life History
A leaf rolling weevil largely associated with birch.
Additional species information
Recorded status
Fairly common and widespread in Britain
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Temnocerus nanus. 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 Temnocerus nanus (2)
Frequently Asked Questions About Temnocerus nanus
What is Temnocerus nanus?
Temnocerus nanus is a species in the family Rhynchitidae, within the order Coleoptera.
Where is Temnocerus nanus found?
Habitat: Usually an arboreal species and often found on birch.
When is Temnocerus nanus active?
Temnocerus nanus: seasonal activity - Spring to autumn..
What is the life cycle of a Temnocerus nanus?
A leaf rolling weevil largely associated with birch.