Pterostichus luctuosus
This record describes Pterostichus luctuosus (species). Recorded family: Carabidae. Recorded order: Coleoptera.
Identification and Appearance

Helpful traits are the iridescent elytra and a relatively mild constriction at base of pronotum ending in sharp angles. Separated from sibling species P. tenuis by shape of mentum tooth.
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
Throughout North America
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Pterostichus luctuosus. 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 luctuosus (5)
Photo credits: Contributed by tom murray; Additional contributions by Bbarnd
Frequently Asked Questions About Pterostichus luctuosus
What is Pterostichus luctuosus?
Pterostichus luctuosus is a species in the family Carabidae, within the order Coleoptera.
How do you identify Pterostichus luctuosus?
Helpful traits are the iridescent elytra and a relatively mild constriction at base of pronotum ending in sharp angles. Separated from sibling species P. tenuis by shape of mentum tooth.
Where is Pterostichus luctuosus found?
Range: Throughout North America
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