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

Holotype The key in erroneously states antennomeres 6‒11 white, contrasted markedly with more or less piceous antennomeres 1‒5". Actually, antennomeres 7‒11 are white; 1‒6, piceous
Identification notes
Holotype
Wikipedia reference for Eucaerus varicornis: https://en.wikipedia.org/wiki/Eucaerus_varicornis.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Adephaga
- Family
- Carabidae (Ground Beetles)
- Subfamily
- Harpalinae
- Tribe
- Lachnophorini
- Genus
- Eucaerus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
Coastal Plain, NJ*‒MD‒FL‒TX (*BG data)
Additional species information
Species notes from the sources
Etymology: Eucaerus varicornis LeConte 1853
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Eucaerus varicornis. 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 Eucaerus varicornis (2)
Photo credits: no rights reserved, uploaded by kcthetc1 | Contributed by Tim Loh; Additional contributions by v belov | Contributed by Tim Loh; Additional contributions by v belov , Thrasher
Frequently Asked Questions About Eucaerus varicornis
What is Eucaerus varicornis?
Eucaerus varicornis is a species in the family Carabidae, within the order Coleoptera.
How do you identify Eucaerus varicornis?
Holotype
Where is Eucaerus varicornis found?
Range: Coastal Plain, NJ*‒MD‒FL‒TX (*BG data)
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