Darkling Beetle (specifically, likely a Desert Stink Beetle)
Scientific Name: Genus likely Stenomorpha or Eleodes (if a desert stink beetle), Family Tenebrionidae
Order & Family: Order: Coleoptera, Family: Tenebrionidae
Size: Varies significantly by species, but many common darkling beetles, especially larger desert species, range from 10 mm to over 30 mm (0.4 to 1.2 inches) in length. The black beetle in the image appears to be in this larger range.
Natural Habitat
Widely diverse habitats depending on the species, including deserts, forests, grasslands, and agricultural fields. The dark, robust appearance of the beetle in the image, common for a desert stink beetle, suggests arid or semi-arid environments.
Diet & Feeding
Most Tenebrionidae are scavengers, feeding on decaying plant material, fungi, and sometimes other small insects. The species pictured, if a desert stink beetle, likely feeds on detritus and plant matter. Some species are considered pests of stored grains and flour.
Behavior Patterns
Many species are nocturnal, hiding during the day under rocks, logs, or in burrows. They are generally slow-moving but can be surprisingly quick when startled. Some species produce defensive secretions when threatened.
Risks & Benefits
Potential risks include being a minor nuisance pest in homes or gardens, especially certain species that infest stored food products. Some large species can emit foul-smelling defensive chemicals. Benefits include being detritivores, helping with decomposition of organic matter, and serving as a food source for other animals in their ecosystems.
Identified on: 7/2/2025