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

Hind tibial spur with basal tooth; elytra with odd intervals elevated, some connections with transverse wrinkles, though variable; single median carina on rostrum; some females have the elytra produced as in L. caudatus (Henderson 1940)
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Curculionoidea
- Family
- Curculionidae (Snout and Bark Beetles)
- Subfamily
- Cyclominae
- Tribe
- Listroderini
- Genus
- Listronotus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Along lakes, ponds, swamps. Host plants appear to be Scirpus and Sagittaria. (Henderson 1940)
Geographic Range
Transcontinental, from British Columbia to Ontario, south from GA-IA-CO-CA
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Listronotus squamiger. 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 Listronotus squamiger (5)
Photo credits: Contributed by Brad Barnd
Frequently Asked Questions About Listronotus squamiger
What is Listronotus squamiger?
Listronotus squamiger is a species in the family Curculionidae, within the order Coleoptera.
How big is Listronotus squamiger?
7.5 to 10 mm
How do you identify Listronotus squamiger?
Hind tibial spur with basal tooth; elytra with odd intervals elevated, some connections with transverse wrinkles, though variable; single median carina on rostrum; some females have the elytra produced as in L. caudatus (Henderson 1940)
Where is Listronotus squamiger found?
| Feature | Details |
|---|---|
| Habitat | Along lakes, ponds, swamps. Host plants appear to be Scirpus and Sagittaria. (Henderson 1940) |
| Range | Transcontinental, from British Columbia to Ontario, south from GA-IA-CO-CA |
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