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The longhorn beetles (Cerambycidae), also known as long-horned or longicorns (whose larvae are often referred to as roundheaded borers), are a large family of beetles, with over 35,000 species described. [2] Most species are characterized by antennae as long as or longer than the beetle's body.
The body is elongated and flattened and slightly haired. Elytrae have 2 or 3 parallel ridges. The antennae of females are not longer than half of the body and those of males are about two-thirds of the body length. The egg is white and elongated, and is around 0.5 mm × 1.9 mm in size. The larva is white, flattened and up to 28–39 mm long.
Asian long-horned beetle larvae do not pupate before they reach a critical weight, so additional larval instars can occur. [ 2 ] Pupation usually occurs in spring at the end of the larval tunnel in the sapwood , eclosion occurs 12–50 days later, and adults will chew out of the tree approximately one week after eclosion. [ 2 ]
The adult cottonwood borer is a large longhorn beetle with a black-and-white coloration and black antennae as long or longer than the body. [5] The white portions are due to microscopic masses of hair. [6] The larvae have legless, cylindrical, creamy-white bodies with a brown-to-black head and grow up to 38 millimetres (1.5 in) long.
The titan beetle (Titanus giganteus) is a Neotropical longhorn beetle, the sole species in the genus Titanus, and one of the largest known beetles, as well as one of the largest known insects, at over 170 mm (6.7 in) in length. Adult titan beetles only live for a few weeks, and protect themselves from predators with their sharp spines and ...
Phoracantha semipunctata was initially observed in the late 1980s in Setubal Portugal. [2] The beetle is classified as a species within the Phoracantha genus, situated within the Phoracanthini tribe of beetles under the Cerambycinae subfamily, which it shares with 11 other genera including Coptocercus, Allotisis, Thoris, Epithora, Skeletodes, Atesta, Paratesta, Steata, Coleocoptus, Phytrocaria ...
How to identify an adult Asian longhorned beetle A shiny black body with white spots that is about 1” to 1 1/2” long. Black and white antennae that are longer than the insect’s body.
The giant Fijian long-horned beetle (Xixuthrus heros) [2] is native to the island of Viti Levu in Fiji, and is one of the largest living insect species, with specimens around 15 cm long, excluding legs, antennae, or jaws. It is closely related to the Taveuni beetle, which is only marginally smaller.