Cosma / Communication / Knowledge / Realm / Terrestrial / Life / Animal / Invertebrate / Beetle


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beetle : any of an order (Coleoptera) of insects having four wings of which the outer pair are modified into stiff elytra that protect the inner pair when at rest — Merriam-Webster   See also   OneLook


Roget’s II (, Merriam-Webster Thesaurus, Visuwords


Beetles are insects that form the order Coleoptera, in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops. Beetles typically have a particularly hard exoskeleton including the elytra, though some such as the rove beetles have very short elytra while blister beetles have softer elytra. — Wikipedia

Beetle (Encyclopædia Britannica)

Coleoptera: Beetles (Bug Guide, Iowa State University)

Beetles (One Zoom)
Coleoptera (Catalogue of Life)
Beetle (WolframAlpha)



Talks about Beetles (TED: Ideas Worth Spreading)




Coleopterology is the scientific study of beetles, a branch of entomology. Practitioners are termed coleopterists and form groups of amateurs and professionals for business and pleasure. — Wikipedia




DDC: 595.76 Beetles (Library Thing)
Subject: Beetles (Library Thing)

Subject: Beetles (Open Library)

LCC: QL 596.S3 Beetles (UPenn Online Books)
Subject: Beetles (UPenn Online Books)

LCC: QL 596.S3 Beetles (Library of Congress)
Subject: Beetles (Library of Congress)

Subject: Beetles (WorldCat)




Insects (Science Trek)
Insects (Biology4Kids)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources



Careers in Entomology (Royal Entomological Society)
What is an Entomologist? (Environmental
Entomologist (Future Farmers of America)


The Coleopterists Society
Entomological Society of America
American Entomological Society
Royal Entomological Society


The Coleopterists Bulletin (The Coleopterists Society)
Annals of the Entomological Society of America
Journal of Insect Science (Entomological Society of America)

Beetles (EurekaAlert, American Association for the Advancement of Science)
Beetles (bioRxiv: Preprint Server for Biology, Cold Spring Harbor Laboratory)
Beetles (JSTOR)
Beetles (Science Daily)
Beetles (Science News)
Beetles (
Beetles (NPR Archives)


The Book of Beetles: A Life-Size Guide to Six Hundred of Nature’s Gems (Patrice Bouchard)



Beetle (


Here are links to pages about closely related subjects.

Knowledge Realm

Terrestrial   (Earth)

Sphere Land, Ice, Water (Ocean), Air, Life (Cell, Gene)
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic

Tree of Life
Microorganism Virus
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus,
Crustacean Lobster, Shrimp
Arachnid Spider, Scorpion
Insect Ant, Bee, Beetle, Butterfly
Fish Seahorse, Ray, Shark
Amphibian Frog, Salamander
Reptile Turtle, Tortoise, Dinosaur
Bird Penguin, Ostrich, Owl, Crow, Parrot
Mammal Platypus, Bat, Mouse, Rabbit, Goat, Giraffe, Camel, Horse, Elephant, Mammoth
Walrus, Seal, Polar Bear, Bear, Panda, Cat, Tiger, Lion, Dog, Wolf
Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human


1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.