Dinomus horni
This record describes Dinomus horni (species). Recorded family: Tenebrionidae. Recorded order: Coleoptera.
Identification and Appearance

| Feature | Description |
|---|---|
| Additional details | Moderately elongate, piceous or black, moderately shining. |
| Antennae | Antennae rather slender, nearly reaching the middle of the body, outer joints scarcely wider and very little compressed. |
| Head | Head moderately denselv punctured. |
| Thorax | Thorax wider than long, apex and base equal, truncate, sides moderately arcuate, a little more strongly in front of middle, margin acute, hind angles sharply rectangular, disc moderately convex, coarsely ami densely punctured. |
| Elytra | Elytra with rows of large, very deeply impressed, slightly elongate punctures (emphasis added), intervals narrower sparsely punctulate. Det. E. G. Riley, 2009 |
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Tenebrionoidea
- Family
- Tenebrionidae (Darkling Beetles)
- Subfamily
- Tenebrioninae
- Tribe
- Helopini
- Genus
- Dinomus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
c. to s.TX - Map
Additional species information
Species notes from the sources
Etymology: Dinomus horni Aalbu & Johnston 2025
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Dinomus horni. 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 Dinomus horni (2)
Photo credits: Contributed by Mike Quinn; Additional contributions by v belov
Frequently Asked Questions About Dinomus horni
What is Dinomus horni?
Dinomus horni is a species in the family Tenebrionidae, within the order Coleoptera.
How big is Dinomus horni?
7.5 mm (type)
How do you identify Dinomus horni?
| Feature | Description |
|---|---|
| Additional details | Moderately elongate, piceous or black, moderately shining. |
| Antennae | Antennae rather slender, nearly reaching the middle of the body, outer joints scarcely wider and very little compressed. |
| Head | Head moderately denselv punctured. |
| Thorax | Thorax wider than long, apex and base equal, truncate, sides moderately arcuate, a little more strongly in front of middle, margin acute, hind angles sharply rectangular, disc moderately convex, coarsely ami densely punctured. |
| Elytra | Elytra with rows of large, very deeply impressed, slightly elongate punctures (emphasis added), intervals narrower sparsely punctulate. Det. E. G. Riley, 2009 |
Where is Dinomus horni found?
Range: c. to s.TX - Map
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