Pterostichus trinarius
This record describes Pterostichus trinarius (species). Recorded family: Carabidae. Recorded order: Coleoptera.
Identification and Appearance
Pterostichus trinarius is a species of woodland ground beetle in the family Carabidae. It is found in North America.
Wikipedia reference for Pterostichus trinarius: https://en.wikipedia.org/wiki/Pterostichus trinarius.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Adephaga
- Family
- Carabidae (Ground Beetles)
- Subfamily
- Harpalinae
- Tribe
- Pterostichini
- Genus
- Pterostichus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
sw.NY-VA to se.SD-MO
Additional species information
Species notes from the sources
Etymology: Pterostichus trinarius (Casey 1918)
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Pterostichus trinarius. 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 Pterostichus trinarius (4)
Photo credits: (c) Joe Girgente, some rights reserved (CC BY-NC), uploaded by Joe Girgente | Contributed by v belov