The general anatomy of a beetle is superficially uniform, but specific organs and appendages may vary greatly in appearance and function between the many families in the order, and even more so between the suborders ( such as Adephaga ) that currently seem increasingly like separate orders in their own right.

One of the first proposed estimates of the total number of beetle species on the planet is based on field data rather than on catalog numbers.

The beetle fauna is not equally well known in all parts of the world.

For example, the known beetle diversity of Australia is estimated at 23, 000 species in 3265 genera and 121 families.

Kateretes is a genus of sap beetle.

He asks the reader to imagine that each person has a box, inside of which is something that everyone intends to refer to with the word " beetle ".

Further, suppose that no one can look inside another's box, and each claims to know what a " beetle " is only by examining their own box.

* The first two pages of Ian Fleming's novel Diamonds Are Forever are told from the point of view of an African scorpion which kills and eats a beetle and is then casually crushed and killed itself, by one of the villains whom James Bond would later confront and eventually crush.

Xeper is symbolized by the scarab beetle, significant of personal rebirth and immortality within the Temple of Set.

* The invasive species Asian long-horned beetle is found in New York.

Magnoliaceae flowers are beetle pollinated, except for Liriodendron, which is bee pollinated.

In 1911, Albert Abraham Michelson discovered that light reflected from the golden scarab beetle Chrysina resplendens is preferentially left-handed.

Members of some beetle families such as Mordellidae and Melyridae feed almost exclusively on pollen as adults, while various lineages within larger families such as Curculionidae, Chrysomelidae, Cerambycidae, and Scarabaeidae are pollen specialists even though most members of their families are not ( e. g., only 36 of 40000 species of ground beetles, which are typically predatory, have been shown to eat pollen — but this is thought to be a severe underestimate as the feeding habits are only known for 1000 species ).

How likely is the beetle to be rare?

The more significant of the two is a longhorn beetle ( Phymatodes nitidus ) that lays eggs on the cones, into which the larvae then bore holes.

The emerald ash borer ( Agrilus planipennis ) is a wood-boring beetle accidentally introduced to North America from eastern Asia via solid wood packing material in the late 1980s to early 1990s.

DED is caused by a micro-fungus transmitted by two species of Scolytus elm-bark beetle which act as vectors.

Most serious of the elm pests is the elm leaf beetle Xanthogaleruca luteola, which can decimate foliage, although rarely with fatal results.

Another unwelcome immigrant to North America is the Japanese beetle Popillia japonica.

Cetonia aurata, known as the rose chafer, or more rarely as the green rose chafer, is a beetle, 20 mm ( ¾ in ) long, that has metallic green coloration ( but can be bronze, copper, violet, blue / black or grey ) with a distinct V shaped scutellum, the small triangular area between the wing cases just below the thorax, and having several other irregular small white lines and marks.

Image: hercules. beetle. arp. jpg | Male Hercules beetle, Dynastes hercules ( The green beetle in the background is a flower beetle, Eudicella gralli )

Recent years have seen outbreaks of insect pests in forest-destroying plagues: the spruce-bark beetle ( Dendroctonus rufipennis ) in Yukon and Alaska ; the mountain pine beetle in British Columbia ; the aspen-leaf miner ; the larch sawfly ; the spruce budworm ( Choristoneura fumiferana ); the spruce coneworm.

A well-known species in much of Europe is Lucanus cervus, referred to in some European countries ( including United Kingdom ) as " the " stag beetle ( it is the largest terrestrial insect in Europe ).

Pheromones of pest insect species, such as the Japanese beetle and the gypsy moth, can be used to induce many behaviors.

Bacillus thuringiensis is the most widely applied species of bacteria used for biological control, with at least four sub-species used to control Lepidopteran ( moth, butterfly ), Coleopteran ( beetle ) and Dipteran ( true flies ) insect pests.

* Chigger Bailey — Beetle's younger brother ( a chigger, like a beetle, is a kind of arthropod, and commonly mistaken for an insect ).

There are large hatches of mayflies, whose long-tailed, short-lived adults are a favourite food of trout ; many species of water beetle and insect larvae.

Many species of Hemiptera are significant pests of crops and gardens, including many species of aphid and various scale insects, including the cottony cushion scale, a pest whose infestation of American citrus crops sparked one of the earliest biological pest control programmes, when the Australian beetle Rodolia cardinalis was introduced as a natural enemy of the scale insect.

A dry fly is typically thought to represent an insect landing on, falling on ( terrestrials ), or emerging from, the water's surface as might a grasshopper, dragonfly, mayfly, ant, beetle, stonefly or caddisfly.

They eat mostly insect eggs, but will also feed on beetle larvae, aphids, scale insects and young caterpillars.

The chemical reaction produces heat and pressure, which pushes out the discharge when the insect is attacked, as in the beetle Metrius contractus, which produces a foamy discharge.

The Japanese beetle, an important agricultural insect pest, becomes rapidly paralyzed after consuming flower petals of the garden hybrids known as " zonal geraniums " ( P. x hortorum ).

Beauveria bassiana ( Hyphomycetes ) is a pathogenic fungus that infects a wide range of insect species, including the Colorado potato beetle.

* Stag beetle, an insect with " stag horns "

The rare titan beetle ( Titanus giganteus ) from northeastern South America is often considered the largest ( though not the heaviest, and not the longest including legs ) insect, with a maximum known body length of just over.

Another notable insect resident of this ecoregion is the rain beetle ( Plecoma sp.

* Bombardier beetle, insect of family Carabidae

The collections were exhibited in cases with glass covers grouped in such a way that a large and colourful insect, a butterfly or a beetle was placed in the centre and different species were arranged around it radially, symmetrically where possible.

Click beetle larvae, called wireworms, are usually saprophagous, but some species are serious agricultural pests, and other species are predators of other insect larvae.

His name is commemorated in the Australian Children's python, Antaresia childreni, the Australian stick insect Tropidoderus childrenii, the North American lady beetle Exochomus childreni,

The most familiar species is the Japanese beetle ( P. japonica ) which is responsible for crop losses around the world, and is near the top of the insect pest lists year after year.

The great diving beetle, true to its name, is a rather sizable insect.

Larviform females occur in many insect groups, including many beetle species.

The predacious Hister beetle will feed on soft-bodied insect eggs and larvae, Diptera in particular.