Gymnognathus triangularis
This record describes Gymnognathus triangularis (species). Recorded family: Anthribidae. Recorded order: Coleoptera.
Identification and Appearance

Type Locality: Texas, San Patricio County., 2 mi. N.E. Sinton, 15-x-1993, S. M. Clark Dr. Shawn Clark collected the holotype sweeping and beating grass and small roadside trees and shrubs, mostly mesquite and Baccharis along U.S. route 77 Jonathan King coll'ed the second known spmn randomly beating in the Palm Grove. Texas considers this a SGCN
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Curculionoidea
- Family
- Anthribidae (Fungus Weevils)
- Subfamily
- Anthribinae
- Genus
- Gymnognathus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
3 records: Bell (!!), San Patricio, and Cameron Co., TX - Map (Other sp. n. of Mex. occurs in so. AZ)
Seasonal Activity
Oct-Nov
Additional species information
Species notes from the sources
Etymology: Gymnognathus triangularis Valentine 1999
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Gymnognathus triangularis. 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 Gymnognathus triangularis (5)
Photo credits: Contributed by Mike Quinn
Frequently Asked Questions About Gymnognathus triangularis
What is Gymnognathus triangularis?
Gymnognathus triangularis is a species in the family Anthribidae, within the order Coleoptera.
How big is Gymnognathus triangularis?
7 mm
Where is Gymnognathus triangularis found?
Range: 3 records: Bell (!!), San Patricio, and Cameron Co., TX - Map (Other sp. n. of Mex. occurs in so. AZ)
When is Gymnognathus triangularis active?
Gymnognathus triangularis: seasonal activity - Oct-Nov.
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