Portal:Insects
The Insects Portal
Insects (from Latin insectum) are hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes, and a pair of antennae. Insects are the most diverse group of animals, with more than a million described species; they represent more than half of all animal species. (Full article...)
Selected article -
Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies (which constitute the other odonatan suborder, Anisoptera) but are usually smaller and have slimmer bodies. Most species fold the wings along the body when at rest, unlike dragonflies which hold the wings flat and away from the body. Damselflies have existed since the Jurassic, and are found on every continent except Antarctica.
All damselflies are predatory insects; both nymphs and adults actively hunt and eat other insects. The nymphs are aquatic, with different species living in a variety of freshwater habitats including acidic bogs, ponds, lakes and rivers. The nymphs moult repeatedly, at the last moult climbing out of the water to undergo metamorphosis. The skin splits down the back, they emerge and inflate their wings and abdomen to gain their adult form. Their presence on a body of water indicates that it is relatively unpolluted, but their dependence on freshwater makes them vulnerable to damage to their wetland habitats. (Full article...)Did you know -
- ... that the water cricket Velia caprai can travel twice as fast after spitting on the water?
- ... that along with the giant lacewings, the moth lacewing family are regarded as the most primitive living Neuroptera?
- ... that the timothy plant bug causes "sticky dough"?
- ... that the Queen's executioner lives in Windsor Great Park and feeds on weevils and nectar?
- ... that the maize weevil is a serious pest of maize in the United States, and also infests standing crops and cereals in all tropical areas of the world?
List articles
Related portals
General images -
Selected image -
The yellow fever mosquito, Aedes aegypti (Diptera: Culicidae), is a mosquito that can spread the dengue fever, Chikungunya and yellow fever viruses, and other diseases. It can be recognized by white markings on legs and a marking in the form of a lyre on the thorax.
Topics
Subcategories
WikiProjects
Main WikiProject:
Related projects:
- WikiProject Arthropods
- WikiProject Spiders
- WikiProject Animals
- WikiProject Tree of Life
- WikiProject Biology
Daughter projects:
Tasks
|
Here are some tasks awaiting attention:
|
Associated Wikimedia
The following Wikimedia Foundation sister projects provide more on this subject:
-
Commons
Free media repository -
Wikibooks
Free textbooks and manuals -
Wikidata
Free knowledge base -
Wikinews
Free-content news -
Wikiquote
Collection of quotations -
Wikisource
Free-content library -
Wikiversity
Free learning tools -
Wiktionary
Dictionary and thesaurus