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Beetles have a variety of ways to communicate, including the use of pheromones. The mountain pine beetle emits a pheromone to attract other beetles to a tree. The mass of beetles are able to overcome the chemical defenses of the tree. After the tree's defenses have been exhausted, the beetles emit an anti-aggregation pheromone.
Most phylogenetically advanced insects have two pairs of wings located on the second and third thoracic segments. [1]: 22–24 Insects are the only invertebrates to have developed flight capability, and this has played an important part in their success. Insect flight is not very well understood, relying on turbulent aerodynamic effects. The ...
Adults are large-bodied and black, with very long antennae; in males, they can be up to twice the body length, but in females they are only slightly longer than body length. Both sexes have a white spot on the base of the wings, and may have white spots covering the wings. Both males and females also have a spine on the side of the prothorax. [2]
A spine on the prosternum can be snapped into a corresponding notch on the mesosternum, producing a violent "click" that can bounce the beetle into the air. [3] Clicking is mainly used to avoid predation, although it is also useful when the beetle is on its back and needs to right itself.
Dermestes maculatus, known as the hide beetle, leather beetle, or skin beetle, feeds on raw skins and hides like the larder beetle. [19] This species is similar in appearance to the larder beetle, with larvae covered in short and long reddish brown or black setae, but its two spine-like posterior appendages curve forward. [ 19 ]
genus Podisus Spined soldier bug eggs and then the recently hatched first instar bugs. The spined soldier bug (Podisus maculiventris) is a species of stink bug common in North America. They are predators of gypsy moth caterpillars and the larvae of beetles such as the Colorado potato beetle and the Mexican bean beetle. Since the Mexican bean ...
Maignes or TLJ syndrome occurs when the joints and tissues at the junction between the thoracic and lumbar spine have inflammatory chemicals building up around them after being overloaded past ...
The more than 6,000 described species have a global distribution and are found in a variety of habitats. They are oval beetles with a domed back and flat underside. Many of the species have conspicuous aposematic (warning) colours and patterns, such as red with black spots, that warn potential predators that they taste bad.