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Beetles (Coleoptera)
Beetles (Coleoptera) are the largest order within the Class of insects. They are grouped in 166 families and hundreds of new species are discovered every year. Beetles are found throughout the world except in Antarctica. Central Europe has around 8, 000 different beetle species. The oldest beetle fossils date from about 265 million years ago.

Coleoptera
Coleoptera (Pictures of beetles)
Beetle (Coleoptera)
Beetle (Coleoptera) (Pictures of beetles)
Beetles can vary enormously in size ranging from 170 mm in length (Titan beetle in Brazil) to lengths of 0. 5 to 75 mm (European species). The largest beetle in Germany and Central Europe is the stag beetle.
Beetle
Beetle (Pictures of beetles)
Leaf beetle of Lanzarote
Leaf beetle of Lanzarote (Pictures of beetles)
All beetles use virtually any organic food source however the larvae have a completely different diet to the adults. Beetles can be classified according to what they eat. There are two types coprophagous and necrophagous. The former feed on excrement (earth-boring dung beetles) and the latter on carrion (Silphidae).

The excretions of both species are from great importance at the remineralization of the soil. Beetles, like all living creatures, are dependent on water. There are species that live under or near the water like hygrophiles or predaceous diving beetles.

Depending on which species they are, beetles fly shorter or longer distances. There are also species that are not capable of flight because (as is the case for most ground beetle species) their wings are missing. There are beetle species producing sounds by moving parts of their bodies. Some beetles are able to generate light (such as fireflies).
14-spotted ladybird beetle
14-spotted ladybird beetle (Pictures of beetles)
The larval stage for most beetle species is the longest period of their lives and can last several years, with the living of the larvae is often similar to the living of the adult beetles. The living of the larvae affects the duration of their larval stage.

In the Palearctic beetles mostly overwinter as pupa and slip off during the spring. Some species overwinter as adult beetles (for example: ladybirds and Hydrophilidae).
Scirtes tibialis
Scirtes tibialis (Pictures of beetles)
The most important natural enemies of the beetles are pathogens (viruses, bacteria, protozoa, fungi), parasites (Ichneumon wasps, tachina flies, Acarina) and enemies like birds, hedgehogs, shrews, bats, reptiles, spiders, fish, amphibians and even other species of beetle which feed on them.

Beetles are often divided by humans into two groups: those that are harmful and those that are beneficial. Sitophilus oryzae and wheat weevil can cause significant damage to cereal stocks, while the Colorado potato beetle, Meligethes aeneus and Western corn rootworm are able to destroy entire harvests. Furthermore Bark beetles, Ips typographus, the Old-house borer and Mountain pine beetles destroy wooden structures, forests and woods. The Asian ladybird is among those considered useful, as it is the enemy of many pests in agriculture and forestry.


Further chapters of "Beetles"
- Ladybirds
  - Asian lady beetle
    - Variants
  - Orange Ladybird
  - seven-spot ladybird
  - Propylaea quatuordecimpunctata
  - two-spotted lady beetle
  - 22-spot ladybird
  - Larch Ladybird
  - Pine Ladybird
  - Eleven-spot ladybird
  - Eyed ladybird
  - Cream-spot ladybird
  - Cream-streaked ladybird
- Rove beetle
  - Philonthus cognatus
  - Tachyporus obtusus
- Leaf beetle
  - Chrysolina sanguinolenta
  - Hispella testacea
  - Knotgrass Leaf Beetle
  - Brassy willow beetle
  - Willow flea beetle
  - Alder leaf beetle
  - Green Dock Beetle
  - Cereal leaf beetle
  - Scarlet lily beetle
  - Chrysolina oricalcia
- longhorn beetles
  - Leptura quadrifasciata
  - Fairy-ring longhorn beetle
  - Stictoleptura cordigera
  - Leptura aurulenta
  - Spotted longhorn
  - Great capricorn beetle
  - Chlorophorus figuratus
  - Agapanthia cardui
  - Red long-horned beetle
  - Stictoleptura fulva
- soldier beetles
  - common red soldier beetle
  - Cantharis fusca
  - Rhagonycha elongata
  - Cantharis rufa
  - Cantharis obscura
- dor beetles
  - Geotrupes stercorarius
- Darkling beetles
  - Lagriinae
    - Lagria hirta
- common carpet beetle
- European Rhinoceros Beetle
- Weevils - Snout Beetles
  - Sitona gressorius
  - Acorn weevil
  - Phyllobius Weevils
    - Common Leaf Weevil
    - Nettle Weevil
    - Bluish nettle weevil
    - Phyllobius sericeus
  - Larinus beckeri
  - Ground Weevil
- Carrion Beetles
  - Phosphuga atrata
  - Common sexton beetle
- Apionidae
  - Perapion violaceum
  - Ceratapion gibbirostre
- Water scavenger beetles
  - Water Scavenger Beetle
- Scarabs - Scarab beetles
  - Summer chafer
  - Valgus hemipterus
  - Oxythyrea funesta
- Checkered beetles
  - Trichodes alvearius
- Jewel beetles
  - Anthaxia podolica
- Click beetles
  - Cardiophorus asellus
  - Ectinus aterrimus
  - Athous bicolor
  - Mousegrey click beetle
  - Cardinal click beetle
  - Lined click beetle
- Fire-coloured beetles
  - Cardinal beetle
- False blister beetles
  - Thick legged flower beetle
  - Oedemera lurida
  - Oedemera femorata
  - Oedemera podagrariae
  - Oedemera virescens
- Lightning bugs
  - Common glowworm
- Skin beetles
  - Attagenus smirnovi
  - Anthrenus pimpinellae
- Ground beetles
  - Brachinus sclopeta
  - Calomera littoralis
  - Common sun beetle
- Blister beetles
  - Mylabris variabilis
- False flower beetles
  - Anaspis flava
- Tumbling flower beetles
  - Mediimorda bipunctata
  - Mordella aculeata
Description of images / photos
Photography with Cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop
1. Coleoptera
2. Beetle (Coleoptera)
3. Beetle
4. Leaf beetle of Lanzarote
5. 14-spotted ladybird beetle
6. Scirtes tibialis
Keywords
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