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Holometabolism, also called complete metamorphosis, is a form of insect development which includes four life stages: egg, larva, pupa, and imago (or adult). Holometabolism is a synapomorphic trait of all insects in the clade Holometabola. Immature stages of holometabolous insects are very different from the mature stage.
Beetles are members of the superorder Holometabola, and accordingly most of them undergo complete metamorphosis. The typical form of metamorphosis in beetles passes through four main stages: the egg, the larva, the pupa, and the imago or adult. [84] The larvae are commonly called grubs and the pupa sometimes is called the chrysalis.
As a beetle, P. beata undergoes complete metamorphosis with the four life stages of egg, larva, pupa and adult. Like others of its genus, larvae and adults of P. beata feed on foliage of Eucalyptus. Host plants mentioned in the literature are Eucalyptus grandis [3] and E. nitens [4]. Pupation takes place in leaf litter or within the soil.
The dung beetle goes through a complete metamorphosis. The larvae live in brood balls made with dung prepared by their parents. During the larval stage, the beetle feeds on the dung surrounding it. The behavior of the beetles was poorly understood until the studies of Jean Henri Fabre in the late 19th century. For example, Fabre corrected the ...
Nicrophorus orbicollis is an endopterygote with complete metamorphosis; the life cycle consists of an egg, larval, pupal, and adult stage. Male and female beetles are attracted to carrion for reproduction and feeding. Male N. orbicollis attract females by emitting pheromones but they will only do so when a carcass is present. After mating, the ...
Like all beetles, the wharf borer undergoes complete metamorphosis. The development time from egg to adult is about 12 months, and adults tend to emerge around June to late August in the U.K. Eggs are deposited on wood surfaces where they are subjected to temperature extremes. Egg longevity is reported to be 5–11 days. [1]
Maladera formosae undergoes a similar life cycle to other white grub pests like Japanese beetles and masked chafers. [4] It undergoes a complete metamorphosis with one generation each year, though the exact timing of its life stages depends on temperature and humidity. Research has, however, suggested that multiple generations can be produced ...
Hypermetamorphosis, or heteromorphosis, [1] is a term used mainly in entomology; it refers to a class of variants of holometabolism, that is to say, complete insect metamorphosis. Hypermetamorphosis is exceptional in that some instars, usually larval instars, are functionally and visibly distinct from the rest. The differences between such ...