Insects.at
INSECTS.AT - by Per Hoffmann Olsen
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Coleoptera

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  1. Start
  2. Coleoptera
  • Carabidae
  • Bostrichidae
  • Cerambycidae
  • Chrysomelidae
  • Cleridae
  • Coccinellidae
  • Cucujidae
  • Anthribidae
  • Brentidae
  • Attelabidae
  • Curculionidae
  • Lymexylidae
  • Elateridae
  • Buprestidae
  • Melandryidae
  • Meloidae
  • Oedemeridae
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  • Tenebrionidae
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  • Lucanidae
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Coleoptera - Beetles

Beetles are an incredibly diverse group of insects belonging to the order Coleoptera and are found worldwide in almost all habitats. They are known for their hard forewings, which serve as protective coverings for their delicate hind wings. These wings form a characteristic armor that shields the beetle's body.

There are over 350,000 known species of beetles, and experts estimate there may be over a million species in total, many of which remain undiscovered. Beetles vary greatly in size, color, shape, and lifestyle. Some are tiny, less than a millimeter in size, while others, like the Hercules beetle, are among the largest beetles globally, reaching up to 17 centimeters in length.

Beetles have a diverse diet. Some are herbivores, feeding on leaves, stems, or wood, while others feed on other insects, carrion, or even blood. Beetles play an essential ecological role, serving as decomposers, pollinators, and predators in various ecosystems.

The life cycle of most beetles comprises four stages: egg, larva, pupa, and adult beetle. Larvae, often referred to as grubs, vary significantly in shape and lifestyle depending on the beetle species. Some live in the soil, while others reside in wood, water, or even within other insects.

Beetles are significant both in nature and for humans. They can be beneficial in agriculture by controlling pests or detrimental by damaging crops.

Overall, beetles represent a fascinating and diverse group of insects that play a vital role in the world's ecosystems due to their vast number of species and varied lifestyles.

Number of species: 824

Chrysomelidae Cassida rubiginosa
Cassida rubiginosa
(Thistle tortoise beetle)
Hits: 2728 / 4.95
» Chrysomelidae » Cassidinae
Mar 2025
Chrysomelidae Cassida rubiginosa
Cassida rubiginosa
(Thistle tortoise beetle)
Hits: 2650 / 5.07
» Chrysomelidae » Cassidinae
Apr 2025
Chrysomelidae Cassida rubiginosa
Cassida rubiginosa
(Thistle tortoise beetle)
Hits: 2679 / 5.12
» Chrysomelidae » Cassidinae
Apr 2025
Chrysomelidae Cassida rubiginosa
Cassida rubiginosa
(Thistle tortoise beetle)
Hits: 2741 / 5.24
» Chrysomelidae » Cassidinae
Apr 2025
Chrysomelidae Cassida rubiginosa
Cassida rubiginosa
(Thistle tortoise beetle)
Hits: 1458 / 5.56
» Chrysomelidae » Cassidinae
May 2025
Chrysomelidae Cassida rubiginosa
Cassida rubiginosa
(Thistle Tortoise Beetle)
Hits: 1262 / 5.88
» Chrysomelidae » Cassidinae
Jun 2025
Chrysomelidae Cassida
Cassida sp.
(Tortoise beetles)
Hits: 588 / 5.30
» Chrysomelidae » Cassidinae
Jun 2026
Chrysomelidae Cassida vibex
Cassida vibex
(-)
Hits: 5225 / 4.20
» Chrysomelidae » Cassidinae
May 2023
Chrysomelidae Cassida vibex
Cassida vibex
(-)
Hits: 4302 / 3.71
» Chrysomelidae » Cassidinae
May 2023
Chrysomelidae Cassida vibex
Cassida vibex
(-)
Hits: 4258 / 3.67
» Chrysomelidae » Cassidinae
Jun 2023
Chrysomelidae Cassida vibex
Cassida vibex
(-)
Hits: 4005 / 4.33
» Chrysomelidae » Cassidinae
Mar 2024
Chrysomelidae Cassida vibex
Cassida vibex
(-)
Hits: 3857 / 4.40
» Chrysomelidae » Cassidinae
May 2024
Chrysomelidae Cassida vibex
Cassida vibex
(-)
Hits: 1665 / 6.35
» Chrysomelidae » Cassidinae
May 2025
Cassida viridis
(Green Tortoise Beetle)
Hits: 11669 / 3.40
» Chrysomelidae » Cassidinae
May 2008
Chrysomelidae Cassida viridis
Cassida viridis
(Green Tortoise Beetle)
Hits: 4452 / 3.84
» Chrysomelidae » Cassidinae
May 2023
Chrysomelidae Cassida viridis
Cassida viridis
(Green Tortoise Beetle)
Hits: 1445 / 5.51
» Chrysomelidae » Cassidinae
May 2025
cf. Oreina
(-)
Hits: 9718 / 2.83
» Chrysomelidae » Chrysomelinae
Apr 2017
Chrysomela (Chrysomela) populi
(Red Poplar Leaf Beetle)
Hits: 9291 / 1.97
» Chrysomelidae » Chrysomelinae
Aug 2009
Chrysomela (Chrysomela) populi
(Red Poplar Leaf Beetle)
Hits: 10846 / 3.02
» Chrysomelidae » Chrysomelinae
Aug 2008
Chrysomela (Chrysomela) populi
(-)
Hits: 8607 / 4.22
» Chrysomelidae » Chrysomelinae
Chrysomela vigintipunctata
(willow leaf beetle)
Hits: 11718 / 2.48
» Chrysomelidae » Chrysomelinae
Jun 2010
Chrysomela vigintipunctata
(willow leaf beetle)
Hits: 8549 / 3.88
» Chrysomelidae » Chrysomelinae
Leptinotarsa decemlineata
(Colorado Potato Beetle)
Hits: 10222 / 3.33
» Chrysomelidae » Chrysomelinae
May 2018
Linaeidea aenea
(-)
Hits: 9073 / 2.65
» Chrysomelidae » Chrysomelinae
Jun 2005
Oreina speciosissima
(-)
Hits: 9712 / 2.06
» Chrysomelidae » Chrysomelinae
Jul 2010
Phratora vitellinae
Phratora vitellinae
(Brassy Willow Beetle)
Hits: 441 / 9.50
» Chrysomelidae » Chrysomelinae
Aug 2026
Chrysomelidae Chrysomela populi
Chrysomela populi
(Red Poplar Leaf Beetle)
Hits: 5733 / 3.65
» Chrysomelidae » Chrysomelinae
May 2022
Chrysomelidae Chrysomela populi
Chrysomela populi
(Red Poplar Leaf Beetle)
Hits: 2355 / 4.72
» Chrysomelidae » Chrysomelinae
May 2025
Chrysomelidae Chrysomela
Chrysomela sp.
(-)
Hits: 3826 / 3.72
» Chrysomelidae » Chrysomelinae
May 2023
Chrysomelidae Plagiosterna aenea
Plagiosterna aenea
(-)
Hits: 4815 / 3.49
» Chrysomelidae » Chrysomelinae
Jul 2022
Chrysomelidae Plagiosterna aenea
Plagiosterna aenea
(-)
Hits: 3884 / 3.78
» Chrysomelidae » Chrysomelinae
May 2023
Chrysomelidae Plagiosterna aenea
Plagiosterna aenea
(-)
Hits: 2291 / 4.38
» Chrysomelidae » Chrysomelinae
Apr 2025
Chrysomelidae Phratora
Phratora sp.
(-)
Hits: 3402 / 3.88
» Chrysomelidae » Chrysomelinae
May 2024
Chrysomelidae Gastrophysa viridula
Gastrophysa viridula
(Green Dock Beetle)
Hits: 4610 / 3.21
» Chrysomelidae » Chrysomelinae
May 2022
Chrysomelidae Gastrophysa viridula
Gastrophysa viridula
(Green Dock Beetle)
Hits: 631 / 4.22
» Chrysomelidae » Chrysomelinae
May 2008
Chrysomelidae Prasocuris phellandrii
Prasocuris phellandrii
(Leaf beetle)
Hits: 3388 / 3.94
» Chrysomelidae » Chrysomelinae
May 2024
Chrysolina haemoptera
Chrysolina haemoptera
(Plantain Leaf Beetle)
Hits: 347 / 20.07
» Chrysomelidae » Chrysomelinae
Sep 2026
Chrysolina rossia
Chrysolina rossia
(-)
Hits: 1261 / 5.88
» Chrysomelidae » Chrysomelinae
Feb 2026
Oreina sp.
Oreina sp.
(-)
Hits: 310 / 14.56
» Chrysomelidae » Chrysomelinae
Jul 2026
Chrysomelidae Chrysolina coerulans
Chrysolina coerulans
(Blue Mint Beetle)
Hits: 4156 / 5.09
» Chrysomelidae » Chrysomelinae
Jun 2024
Chrysomelidae Chrysolina coerulans
Chrysolina coerulans
(Blue Mint Beetle)
Hits: 3673 / 4.50
» Chrysomelidae » Chrysomelinae
Jun 2024
Chrysolina fastuosa
(Dead-nettle Leaf Beetle)
Hits: 7197 / 4.17
» Chrysomelidae » Chrysomelinae
Chrysolina fastuosa
(Dead-nettle Leaf Beetle)
Hits: 7185 / 4.16
» Chrysomelidae » Chrysomelinae
Chrysomelidae Chrysolina fastuosa
Chrysolina fastuosa
(dead-nettle leaf beetle)
Hits: 4988 / 3.18
» Chrysomelidae » Chrysomelinae
May 2021
Chrysomelidae Chrysolina fastuosa
Chrysolina fastuosa
(Dead-nettle leaf beetle)
Hits: 5317 / 3.60
» Chrysomelidae » Chrysomelinae
Aug 2021
Chrysomelidae Chrysolina fastuosa
Chrysolina fastuosa
(Dead-nettle leaf beetle)
Hits: 4521 / 3.16
» Chrysomelidae » Chrysomelinae
Aug 2021
Chrysomelidae Chrysolina varians
Chrysolina haemoptera
(-)
Hits: 6447 / 4.41
» Chrysomelidae » Chrysomelinae
Sep 2022
Chrysomelidae Chrysolina haemoptera
Chrysolina haemoptera
(Plantain Leaf Beetle)
Hits: 4045 / 4.61
» Chrysomelidae » Chrysomelinae
May 2024

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Copyright 2026 - Per Hoffmann Olsen

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