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.
Types of Weevils. Boll Weevil âThe boll weevil (Anthonomus grandis) is a type of beetle that is known to cause severe damage to cotton crops. The boll weevil measures an average length of 6 mm. It feeds on the buds and flowers of the cotton plant.here are more species in this family than in any other beetle group. Scientists estimate that there are over 1,000 species of Curculionidae in North America. Weevil species occur in a wide range of colors and body shapes.