ColeopteraMeloidae – Blister Beetles

Nemognatha explanata

This record describes Nemognatha explanata (species). Recorded family: Meloidae. Recorded order: Coleoptera.

Identification and Appearance

Nemognatha explanata - Nemognatha explanata
Contributed by Mike Quinn; Additional contributions by cotinis

Resembles N. lutea but differs markedly in its reddish color; expanded posterior angles of the pronotum . (emphasis added) Body surface moderately shining, reddish head and pronotum and reddish-testaceous elytra Det. Boris Büche, 2025 Holotype male and allotype taken on gumweed ( Grindelia inuloides ) at Bishop, Texas, April 17, 1952, Michener, Beamers, Wille, and LaBerge collectors.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Tenebrionoidea
Family
Meloidae (Blister Beetles)
Subfamily
Nemognathinae
Tribe
Nemognathini
Genus
Nemognatha

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

n.TX to ne.Mex. (Saltillo, Coahuila) - Map , particularly common along the Balcones Fault up to Dallas

Seasonal Activity

Mar-Jun

Diet and Behavior

Diet: Flower hosts of adults: Grindelia inuloides, Cirsium sp., Phacelia sp.; Argemone sp., Verbesina encelioides, Guajillo, Carduus sp.

Additional species information

Species notes from the sources

Etymology: Nemognatha explanata Enns, 1956

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Nemognatha explanata. 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.

Explore Coleoptera families and species →

Photos of Nemognatha explanata (5)

Nemognatha explanata - photo 1
Contributed by Mike Quinn; Additional contributions by cotinis
Nemognatha explanata - photo 2
Contributed by Mike Quinn; Additional contributions by cotinis
Nemognatha explanata - photo 3
Contributed by Mike Quinn; Additional contributions by cotinis
Nemognatha explanata - photo 4
Contributed by Mike Quinn; Additional contributions by cotinis
Nemognatha explanata - photo 5
Contributed by Mike Quinn; Additional contributions by cotinis

Photo credits: Contributed by Mike Quinn; Additional contributions by cotinis

Frequently Asked Questions About Nemognatha explanata

What is Nemognatha explanata?

Nemognatha explanata is a species in the family Meloidae, within the order Coleoptera.

How big is Nemognatha explanata?

8-12 mm

How do you identify Nemognatha explanata?

Resembles N. lutea but differs markedly in its reddish color; expanded posterior angles of the pronotum . (emphasis added) Body surface moderately shining, reddish head and pronotum and reddish-testaceous elytra Det. Boris Büche, 2025

Where is Nemognatha explanata found?

Range: n.TX to ne.Mex. (Saltillo, Coahuila) - Map , particularly common along the Balcones Fault up to Dallas

What does Nemognatha explanata eat?

The diet of the Nemognatha explanata includes Flower hosts of adults: Grindelia inuloides, Cirsium sp., Phacelia sp.; Argemone sp., Verbesina encelioides, Guajillo, Carduus sp..

When is Nemognatha explanata active?

Nemognatha explanata: seasonal activity - Mar-Jun.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Mike Quinn; Additional contributions by cotinis. Contributors retain copyright over their individual contributions.