Spiders certainly must look ferocious to the insects and other creatures they eat. But to many animals, spiders look delicious.
Description: Darkling beetles are about 18mm to 30mm (0.75 to 1,5in) long and an elongate oval in shape, that is black in color.The head contains notched eyes, thread-like antennae, and chewing mouth parts. The front wings are smooth and shiny, and the legs are long.eographic range: There are 100 species in the Western United States, and these Beetles are one of the most commonly seen insects in the Jornada Basin. Habitat: The darkling beetle is found in a variety of desert habitat s such as shrub lands, grasslands, and arroyos.
Diet and Habitat. Perhaps the most fascinating characteristic of the darkling beetle is its ability to create water internally. The beetles don't need an external water source to survive. Instead their bodies fabricate it from other molecules.Darkling beetles are scavengers and decomposers.ou may not recognize darkling beetles by name, but there's a good chance you've encountered these insects before. Their larvae are called mealworms and are often used as bait by fishermen. These beetles are common throughout North America and fill several roles in ecosystems across the continent.