Triachus postremus
This record describes Triachus postremus (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.
Identification and Appearance
Prothorax with a row of punctures at base, which is finely but distinctly margined; oval, convex, testaceous, elytra clouded with brown; Texas. (LeConte 1880)
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Chrysomeloidea
- Family
- Chrysomelidae (Leaf Beetles)
- Subfamily
- Cryptocephalinae
- Tribe
- Cryptocephalini
- Genus
- Triachus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
TX, FL
Seasonal Activity
Apr-May ,
Diet and Behavior
Diet: recorded on Baccharis (Asteraceae), Crataegus (Rosaceae), and Ampelopsis (Vitaceae) ( 3 ) , ( 4 ) , ( 5 ) , ( 6 )
Additional species information
Species notes from the sources
Etymology: Triachus postremus LeConte 1880
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Triachus postremus. 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 Triachus postremus (3)
Photo credits: Contributed by Mike Quinn
Frequently Asked Questions About Triachus postremus
What is Triachus postremus?
Triachus postremus is a species in the family Chrysomelidae, within the order Coleoptera.
How do you identify Triachus postremus?
Prothorax with a row of punctures at base, which is finely but distinctly margined; oval, convex, testaceous, elytra clouded with brown; Texas. (LeConte 1880)
Where is Triachus postremus found?
Range: TX, FL
What does Triachus postremus eat?
The diet of the Triachus postremus includes recorded on Baccharis (Asteraceae), Crataegus (Rosaceae), and Ampelopsis (Vitaceae) ( 3 ) , ( 4 ) , ( 5 ) , ( 6 ).
When is Triachus postremus active?
Triachus postremus: seasonal activity - Apr-May ,.