Audi A6

The new Audi A6 (the sixth-generation) has been drawn by Italian Walter Dà Silva.
. The updated 2005 A6 won the World Car of the Year award for 2005. There is a thriving industry in the collection of wild caught species for amateur and professional collectors. The A6 was on Car and Driver magazine's Ten Best list for 2000 and 2001. See the list of list of notable coleopterists for more information. The C6 design was available with the following engines:. The study of beetles is called coleopterology, and its practitioners coleopterists.

It is powered by a Lamborghini-derived V10. "Le Scarabée Sacré", the opening essay in Jean-Henri Fabre's famous Souvenirs Entomologiques, deals with the insect. The sporting S6 was introduced in the Frankfurt Motor Show, with sales beginning in early 2006. The amulets were often inscribed with a spell from the Book of the Dead which entreated the heart to, "do not stand as a witness against me.". The Allroad model is slated to make its debut during 2006. During and following the New Kingdom, scarab amulets were often placed over the heart of the mummified deceased. The Avant arrived during the course of 2005, while in China, a longer version was introduced in the same year, named A6 L (the A8 is not sold in this country). In many artifacts, the scarab is depicted pushing the sun along its course in the sky.

Like the previous model, the A6 is available with other body options. Many thousands of amulets and stamp seals have been excavated that depict the scarab. Quattro four wheel drive is available in most of the lineup, and standard in the most powerful models. The scarab beetle god Khepri was believed to push the setting sun along the sky in the same manner as the beetle with his ball of dung. The Multitronic automatic transmission continues as an alternative alongside a new 6-speed Tiptronic gearbox available in the high end models. The ray-like antennae on the beetle's head and its practice of dung-rolling caused the beetle to also carry solar symbolism. Although the line of engines represents the same progression as the former model, all engines were new. Therefore they were worshipped as "Khepri", which means "he who came forth." This creative aspect of the scarab was associated with the creator god Atum.

On the engine side the new FSI direct injection technology was introduced for the first time outside the race track. It seemed to the ancient Egyptians that young scarab beetles emerged spontaneously from the burrow where they were born. Most notably is the MMI (Multi Media Interface) which is an optional system controlling radio, satellite navigation, climate control and (when available) suspension settings through a central screen interface. The scarab beetles (family Scarabaeidae) are coprophagous beetles. The new model is a larger car (492 cm) with more sophisticated technology. Some farmers introduce beetle banks to foster and provide cover for beneficial beetles. The new A6 (C6-design) came in 2004. There are several serious agricultural and household pests represented by the order, these include :.

The C5 design was available with the following engines:. See the article subgroups of the order Coleoptera for a complete list of families. This model saw the end of the C5 design which was replaced in 2004 by a new model. The extraordinary number of beetle species poses special problems for classification, with some families consisting of thousands of species and needing further division into subfamilies and tribes. Producing a staggering 450 PS (331 kW) and 560 Nm (413 ft.lbf), it propels the A6 from 0-100 km/h in 4.7 sec and on to 200 km/h in under 18 seconds. Their phylogenetic relationship is uncertain, with the most popular hypothesis being that Polyphaga and Myxophaga are most closely related, with Adephaga an outgroup to those two, and Archostemata an outgroup to the other three. In the late years of the A6 C5 design, a monstrous Audi RS6 model was presented. These suborders diverged in the Permian and Triassic.

A four wheel drive version of the estate with raised ground clearance and slightly altered styling was sold as the Audi Allroad Quattro, Audi's first crossover SUV. The four extant suborders of beetle are these:. All models, except the 2.0 petrol and 1.9 TDI, were available with Audi's four wheel drive system, quattro. Beetles entered the fossil record during the Lower Permian, about 265 million years ago. Also new was the revolutionary Multitronic drive by wire continuously variable transmission, available in most front wheel drive models in the lineup. Many species, including lady beetles and blister beetles, can secrete poisonous substances to make them unpalatable. A new more powerful V6 diesel was also introduced presenting 180 bhp and 370 nm. Large ground beetles by contrast will tend to go on the attack, using their strong mandibles to forcibly persuade a predator to seek out easier prey.

The V6 Diesel was also slightly modified resulting in 163 PS (120 kW) (after the second modification) and 350 Nm (258 ft.lbf). A number of longhorn beetles (family Cerambycidae) bear a striking resemblance to wasps, thus benefitting from a measure of protection. The turbocharged 2.7 L was given a tweak on the turbo resulting in 250 PS (184 kW) and 330 Nm (244 ft.lbf), controlled by standard quattro. These include the leaf beetles (family Chysomelidae) that have a green colouring very similair to their habitat on tree leaves. The 2.4's power was slightly upgraded and the 2.8 V6 was replaced by a 3.0 L engine boosting 220 PS (162 kW). Many employ simple camoflage to avoid being spotted by predators. The 1.9 L TDI was tweaked into producing a maximum of 130 PS (96 kW) and 310 Nm (228 ft.lbf), receiving a 6-speed gearbox in the process. Beetles and larvae have evolved to employ a variety of different strategies for avoiding being eaten.

The 1.8 L engine was removed and replaced by a 2.0 L powerplant with 130 PS (96 kW). Generally the number of eggs laid is an indicator of the level of parental care subsequently employed, as they are inversely proportional. In 2000 the A6 received a facelift which saw little change in the design of the car but presented a few notable changes in terms of engines. There are other notable ways of caring for the eggs and young, such as those employed by leaf rollers, who bite sections of leaf causing it to curl inwards and then lay the eggs, thus protected, inside. The Avant body arrived in 1998. It ranges from the simple laying of eggs under a leaf to scarab beetles, which construct impressive underground structures complete with a supply of dung to house and feed their young. As an alternative to the manual transmission, a 5-speed Tiptronic automatic transmission was also available. As befitting such a large order, the parental care between species varies widely.

The crisp 30-valve 2.4 and 2.8 V6 engines represented the bulk of the A6's development programme, but the resilient 2.5 V6 TDI and the powerful all-new Audi S6 were the flagships. During pairing sperm cells are transferred to the female to fertilise the egg. The new A6 presented itself with a wide range of engines and configurations. Pairing is generally short but in some cases will last for several hours. With the introduction of an ambitious new design (C5) and a new pack of engines, the A6 moved up a notch and was positioned alongside the hegemonious BMW 5-Series and the solid Mercedes E-class. Many beetles are territorial and will fiercly defend their small patch of territory from intruding males. In 1997 the scene changed strikingly for the A6. Conflict can play a part in the mating rituals for example in species such as burying beetles (genus Nicrophorus) where localised conflicts between males and females rage until only one of each is left, thus ensuring reproduction by the strongest and fittest.

The C4 design was available with the following engines:. Smell is thought to play significant importance in the location of a mate. Like the 100, the A6 was available with. Beetles may display some extremely intricate behaviour when mating. The exterior was largely left unchanged from the C4 100 as well as the engines; up until 1997 the A6 came with several different engines, two of them Diesel, and most of them available with Audi's quattro four wheel drive system. Adults have an extremely variable lifespan, again, from weeks to years. In 1994 the last version (C4) of the Audi 100 was facelifted and re-badged as the A6, to fit in with Audi's new naming policy (as the A8 had just been introduced). The larval period of beetles varies between species but can be as long as several years.

. Predaceous diving beetles (family Dytiscidae) may be the most common example, they employ a technique of retaining air when diving between the abdomen and the elytra. Its primary competitors are the Mercedes-Benz E-Class, BMW 5-Series, Alfa Romeo 166, Jaguar S-Type, Lexus GS and Volvo S80. Various techniques are employed by many species for retaining both air and water supplies. The second generation A6 was also used as the basis for the Allroad. The beneficial impact to the general ecology of these two activities is huge. It is available in two bodywork configurations, the sedan and the station wagon (Avant). Decaying organic matter is a primary diet for many species, this can range from dung which is consumed by coprophagous species such as the scarab beetles (family Scarabaeidae), to dead animals which are eaten by necrophagous species such as the carrion beetles (family Silphidae).

The Audi A6 is an executive luxury car produced by Audi. Ground beetles (family Carabidae) and rove beetles (family Staphylinidae) are entirely carnivorous and will catch and comsume small prey such as earthworms and snails. Others are generalists, eating both plants and animals. Some beetles are highly specialised in their diet; for example, the Colorado potato beetle (Leptinotarsa decemlineata) opts almost entirely to colonize plants of the potato family (Solanaceae). There are few things that a beetle somewhere will not eat, even inorganic matter may be consumed.

In some cases there are several transitory larvae stages and this is known as hypermetamorphosis; examples include the blister beetles (family Meloidae). As with lepidoptera, beetle larvae pupate for a period, and from the pupa emerges a fully formed beetle or imago. Once the egg hatches the larvae tend to feed voraciously, whether out in the open such as with Ladybird larvae, or within plants such as with leaf beetle larvae. The eggs of beetles are minute but may be brightly coloured, they are laid in clumps and there may be from several dozen to several thousand eggs laid by a single female.

The larva of a beetle is often called a grub and represents the principal feeding stage of the life-cycle. Beetles are endopterygotes with complete metamorphosis. Although beetles have blood, it is not used for oxygen transference, although a heart is present. Pumping movements of the body force the air through the system.

Oxygen is taken in via a tracheal system: this takes air in through a series of tubes along the body which is then taken into increasingly finer fibres. Antennae can vary greatly and may be filiform, claviform, flabellate or genticulate. The dorsal appendage aids the beetle in stalking prey. The eyes are compound, and may display some remarkable adabtability, as in the case of the Whirligig beetles (family Gyrinidae), in which the eyes are split to allow a view both above and below the waterline.

The bodies of beetles are divided into three sections, the head, the thorax, and the abdomen, and these in themselves may be composed of several further segments. In a few families, both the ability to fly and the wing-cases have been lost, with the best known example being the "glowworms" of the family Phengodidae, in which the females are larviform throughout their lives. After landing, the hindwings are folded below the elytra. In some cases the ability to fly has been lost, characteristically in families such as Carabidae and Curculionidae.

The elytra are not used in flying, but generally must be raised in order to move the hindwings. Beetles are generally characterised by a particularly hard exoskeleton, and the hard wing-cases (elytra) which tend to cover the hind part of the body and protect the second wings, the alae. Bearing in mind the wide diversity and number of species the anatomy of beetles is quite uniform. .

Certain species are agricultural pests in some areas, for example the Colorado potato beetle (Leptinotarsa decemlineata), while other species are important controls of agricultural pests, for example the lady beetles (family Coccinellidae) consume aphids, fruit flies, thrips, and other plant-sucking insects that damage crops. They have a major impact on the ecosystem in three ways: feeding on plants and fungi, breaking down animal and plant debris, and eating other invertebrates. Beetles can be found in almost all habitats, but are not known to occur in the sea or in the polar regions. Haldane, a British geneticist, was asked what his studies of nature revealed about God, he replied, "An inordinate fondness for beetles".

S. B. This is why, when J. Estimates put the total number of species — described and undescribed — at between 5 and 8 million.

Forty percent of all described insect species are beetles (about 350,000 species), and new species are regularly discovered. Their order, Coleoptera (meaning "sheathed wing"), has more species in it than any other order in the entire animal kingdom. Beetles are one of the main groups of insects. The Coleopterist (UK).

Harde, A Field Guide in Colour to Beetles ISBN 0706419375 Pages 7-24. W. K. Thomas, American Beetles (CRC Press, 2001-2).

and Michael C. Arnett, Jr. Ross H. Engel, Evolution of the Insects ISBN 0521821495.

David Grimaldi, Michael S. Entomological Society of America, Beetle Larvae of the World ISBN 0643055061. Poul Beckmann, Living Jewels: The Natural Design of Beetles ISBN 3791325280. Large ground beetles (family Carabidae) are predators of caterpillars and, on occasion, adult weevils, whereas smaller species attack eggs, small caterpillars, and other pest insects.

While both adult and larval lady beetles found on crops prefer aphids, they will, if aphids are scarce, use food from other sources, such as small caterpillars, young plant bugs, aphid honeydew, and plant nectar. The larvae of lady beetles (family Coccinellidae) are often found in aphid colonies. Citrus long-horned beetle. Asian long-horned beetle.

It is most usual for death watch beetle attacks to originate in timber of large dimensions, and it is thought that the actual introduction of the pest into buildings takes place at the time of construction. It attacks hardwoods such as oak and chestnut, and always where some fungal decay has taken or is taking place. The death watch beetle (Xestobium rufovillosum) is of some considerable importance as a pest of wooden structures in older buildings in Britain. The spread of the fungus by the beetle has led to the devastastation of elm trees in many parts of the Northern Hemisphere, notably North America and Europe.

They are important elm pests because they carry Dutch elm disease (the fungus Ophiostoma ulmi) as they move from infected breeding sites to feed on healthy elm trees. The elm bark beetles, Hylurgopinus rufipes and Scolytus multistriatus (in the family Scolytidae) attack elm trees. Crops are destroyed and the beetle can only be treated by employing expensive pesticides, many of which it has begun to develop immunity to. As well as potatoes, this can be any one of a number of plants from the potato family (Solanaceae) such as nightshade, tomato, aubergine and capsicum.

Adults mate before overwintering deep in the soil, so that when they emerge the following spring, females can lay eggs immediately, once a suitable host plant has been found. The Colorado potato beetle (Leptinotarsa decemlineata) is a notorious pest of potato plants. Myxophaga contains about 100 described species in four families, mostly very small, including skiff beetles (Hydroscaphidae) and minute bog beetles (Sphaeriusidae). Archostemata contains four families of mainly wood-eating beetles, including reticulated beetles (Cupedidae) and telephone-pole beetles (Micromalthidae).

In these beetles the testes are tubular and the first abdominal sternum (a plate of the exoskeleton) is divided by the hind coxae (the basal joints of the beetle's legs). Adephaga contains about 10 families of predatory beetles, includes ground beetles (Carabidae), predacious diving beetles (Dytiscidae) and whirligig beetles (Gyrinidae). These beetles can be identified by the cervical sclerites (hardened parts of the head used as points of attachment for muscles) absent in the other suborders. Polyphaga is the largest suborder, containing more than 300,000 described species in more than 170 families, including rove beetles (Staphylinidae), scarab beetles (Scarabaeidae), blister beetles (Meloidae), stag beetles (Lucanidae), and true weevils (Curculionidae).