Rhubarb Weevil
Lixus concavus
This record describes Lixus concavus (species). Recorded family: Curculionidae. Recorded order: Coleoptera.
Identification and Appearance
deep depression at the pronotal/elytral base
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Curculionoidea
- Family
- Curculionidae (Snout and Bark Beetles)
- Subfamily
- Lixinae
- Tribe
- Lixini
- Genus
- Lixus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
QC‒FL to ID‒UT‒TX
Diet and Behavior
Diet: breeds in stems of Carduus/Cirsium, Helianthus, Rumex
Additional species information
Species notes from the sources
Etymology: Lixus concavus Say 1831
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Lixus concavus. 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 Rhubarb Weevil (5)
Photo credits: Contributed by Ron M.; Additional contributions by Mike Quinn , Boris Bueche , v belov
Frequently Asked Questions About Rhubarb Weevil
What is Rhubarb Weevil?
Rhubarb Weevil (Lixus concavus) is a species in the family Curculionidae, within the order Coleoptera.
How big is Rhubarb Weevil?
10‒13.5 mm
How do you identify Rhubarb Weevil?
deep depression at the pronotal/elytral base
Where is Rhubarb Weevil found?
Range: QC‒FL to ID‒UT‒TX
What does Rhubarb Weevil eat?
The diet of the Rhubarb Weevil includes breeds in stems of Carduus/Cirsium, Helianthus, Rumex.