Straight-jawed Pedunculate Ground Beetle
Promecognathus crassus
This record describes Promecognathus crassus (species). Recorded family: Carabidae. Recorded order: Coleoptera.
Identification and Appearance
Wikipedia reference for Promecognathus crassus: https://en.wikipedia.org/wiki/Promecognathus crassus.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Adephaga
- Family
- Carabidae (Ground Beetles)
- Subfamily
- Scaritinae
- Tribe
- Promecognathini
- Genus
- Promecognathus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Additional species information
Species notes from the sources
Etymology: Promecognathus crassus LeConte 1868
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Promecognathus crassus. 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 Straight-jawed Pedunculate Ground Beetle (6)
Photo credits: (c) Don Loarie, some rights reserved (CC BY) | (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey | (c) Tony Iwane, some rights reserved (CC BY-NC), uploaded by Tony Iwane | (c) Andy Harmsen, all rights reserved, uploaded by Andy Harmsen | Contributed by Tim Loh; Additional contributions by v belov