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

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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: 693

Chrysomelidae Leptinotarsa decemlineata
Leptinotarsa decemlineata
(Colorado potato beetle)
Hits: 2069 / 2.96
» Chrysomelidae » Chrysomelinae
Aug 2023
Chrysomelidae Leptinotarsa decemlineata
Leptinotarsa decemlineata
(Colorado potato beetle)
Hits: 1965 / 2.75
» Chrysomelidae » Chrysomelinae
Jun 2023
Chrysomelidae Colaphellus sophiae
Colaphellus sophiae
(-)
Hits: 2217 / 2.78
» Chrysomelidae » Chrysomelinae
May 2023
Chrysomelidae Gonioctena fornicata
Gonioctena fornicata
(Lucerne beetle)
Hits: 2987 / 2.66
» Chrysomelidae » Chrysomelinae
Apr 2021
Chrysomelidae Timarcha metallica
Timarcha metallica
(-)
Hits: 3065 / 2.73
» Chrysomelidae » Chrysomelinae
May 2022
Chrysomelidae Timarcha tenebricosa
Timarcha tenebricosa
(Bloody-nosed Beetle)
Hits: 3046 / 2.71
» Chrysomelidae » Chrysomelinae
Sep 2021
Chrysomelidae Crioceris quatuordecimpunctata
Crioceris quatuordecimpunctata
(-)
Hits: 1146 / 4.43
» Chrysomelidae » Criocerinae
Aug 2024
Chrysomelidae Crioceris quatuordecimpunctata
Crioceris quatuordecimpunctata
(-)
Hits: 1206 / 4.66
» Chrysomelidae » Criocerinae
Aug 2024
Chrysomelidae Crioceris quatuordecimpunctata
Crioceris quatuordecimpunctata
(-)
Hits: 1352 / 3.88
» Chrysomelidae » Criocerinae
Jul 2024
Chrysomelidae Crioceris asparagi
Crioceris asparagi
(Asparagus Beetle)
Hits: 1911 / 5.48
» Chrysomelidae » Criocerinae
Jul 2024
Chrysomelidae Lilioceris merdigera
Lilioceris merdigera
(-)
Hits: 2267 / 2.85
» Chrysomelidae » Criocerinae
Apr 2023
Chrysomelidae Lilioceris merdigera
Lilioceris merdigera
(-)
Hits: 2231 / 2.80
» Chrysomelidae » Criocerinae
Apr 2023
Chrysomelidae Lilioceris merdigera
Lilioceris merdigera
(-)
Hits: 2749 / 2.71
» Chrysomelidae » Criocerinae
Jul 2022
Chrysomelidae Lilioceris merdigera
Lilioceris merdigera
(-)
Hits: 3064 / 2.73
» Chrysomelidae » Criocerinae
May 2022
Chrysomelidae Lilioceris merdigera
Lilioceris merdigera
(-)
Hits: 2976 / 2.65
» Chrysomelidae » Criocerinae
May 2022
Chrysomelidae Lilioceris merdigera
Lilioceris merdigera
(-)
Hits: 3070 / 2.73
» Chrysomelidae » Criocerinae
Jul 2021
Chrysomelidae Lilioceris merdigera
Lilioceris merdigera
(-)
Hits: 2902 / 2.58
» Chrysomelidae » Criocerinae
Apr 2020
Crioceris quatuordecimpunctata
(-)
Hits: 4933 / 3.09
» Chrysomelidae » Criocerinae
May 2008
Crioceris duodecimpunctata
(Twelve-spotted asparagus beetle)
Hits: 5025 / 3.15
» Chrysomelidae » Criocerinae
May 2008
Crioceris asparagi
(Asparagus Beetle)
Hits: 4861 / 3.04
» Chrysomelidae » Criocerinae
Jun 2002
Lilioceris merdigera
(-)
Hits: 4451 / 2.79
» Chrysomelidae » Criocerinae
Chrysomelidae Oulema melanopus
Oulema melanopus
(Cereal leaf beetle)
Hits: 663 / 4.89
» Chrysomelidae » Criocerinae
Jan 2025
Chrysomelidae Lema cyanella
Lema cyanella
(-)
Hits: 1419 / 3.84
» Chrysomelidae » Criocerinae
May 2024
Chrysomelidae Oulema
Oulema sp.
(-)
Hits: 1950 / 2.73
» Chrysomelidae » Criocerinae
May 2023
Chrysomelidae Oulema melanopus
Oulema sp.
(Cereal leaf beetle)
Hits: 2998 / 3.52
» Chrysomelidae » Criocerinae
Feb 2023
Chrysomelidae Oulema melanopus
Oulema sp.
(Cereal leaf beetle)
Hits: 2433 / 2.46
» Chrysomelidae » Criocerinae
May 2022
Oulema sp.
(-)
Hits: 4857 / 3.04
» Chrysomelidae » Criocerinae
Lachnaia sexpunctata
(-)
Hits: 4722 / 2.96
» Chrysomelidae » Cryptocephalinae
Clytra laeviuscula
(-)
Hits: 7810 / 3.51
» Chrysomelidae » Cryptocephalinae
Jun 2018
Tituboea macropus
(-)
Hits: 7701 / 3.46
» Chrysomelidae » Cryptocephalinae
Jun 2019
Chrysomelidae Labidostomis
Labidostomis sp.
(-)
Hits: 246 / 10.92
» Chrysomelidae » Cryptocephalinae
Jun 2025
Chrysomelidae Labidostomis
Labidostomis sp.
(-)
Hits: 243 / 10.79
» Chrysomelidae » Cryptocephalinae
Jun 2025
Chrysomelidae Smaragdina
Smaragdina sp.
(-)
Hits: 366 / 4.82
» Chrysomelidae » Cryptocephalinae
Apr 2025
Chrysomelidae Clytra quadripunctata
Clytra quadripunctata
(-)
Hits: 1208 / 4.67
» Chrysomelidae » Cryptocephalinae
May 2024
Chrysomelidae Coptocephala unifasciata
Coptocephala unifasciata
(-)
Hits: 1351 / 3.87
» Chrysomelidae » Cryptocephalinae
Jul 2024
Chrysomelidae Lachnaia sexpunctata
Lachnaia sexpunctata
(-)
Hits: 1341 / 3.63
» Chrysomelidae » Cryptocephalinae
Jun 2024
Chrysomelidae Clytra laeviuscula
Clytra laeviuscula
(-)
Hits: 1184 / 3.20
» Chrysomelidae » Cryptocephalinae
Jun 2024
Chrysomelidae Clytra laeviuscula
Clytra laeviuscula
(-)
Hits: 1178 / 3.19
» Chrysomelidae » Cryptocephalinae
Jun 2024
Chrysomelidae Clytra quadripunctata
Clytra quadripunctata
(-)
Hits: 1384 / 3.35
» Chrysomelidae » Cryptocephalinae
May 2024
Chrysomelidae Clytra laeviuscula
Clytra laeviuscula
(-)
Hits: 1426 / 3.45
» Chrysomelidae » Cryptocephalinae
May 2024
Chrysomelidae Clytra quadripunctata
Clytra quadripunctata
(-)
Hits: 1434 / 3.47
» Chrysomelidae » Cryptocephalinae
May 2024
Chrysomelidae Lachnaia sexpunctata
Clytra quadripunctata
(Four Spotted Leaf Beetle)
Hits: 2048 / 4.76
» Chrysomelidae » Cryptocephalinae
May 2024
Chrysomelidae Smaragdina affinis
Smaragdina affinis
(-)
Hits: 1441 / 3.35
» Chrysomelidae » Cryptocephalinae
Apr 2024
Chrysomelidae Coptocephala unifasciata
Coptocephala unifasciata
(-)
Hits: 2237 / 3.13
» Chrysomelidae » Cryptocephalinae
Jul 2023
Chrysomelidae Coptocephala unifasciata
Coptocephala unifasciata
(-)
Hits: 2136 / 2.99
» Chrysomelidae » Cryptocephalinae
Jul 2023
Chrysomelidae Smaragdina affinis
Smaragdina affinis
(-)
Hits: 1965 / 2.75
» Chrysomelidae » Cryptocephalinae
Jun 2023
Chrysomelidae Lachnaia sexpunctata
Lachnaia sexpunctata
(-)
Hits: 2004 / 2.81
» Chrysomelidae » Cryptocephalinae
May 2023
Chrysomelidae Smaragdina
Smaragdina sp.
(-)
Hits: 2323 / 3.25
» Chrysomelidae » Cryptocephalinae
May 2023

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