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True flies are insects of the order Diptera. The name is derived from the Greek di-= two, and ptera = wings. Most insects of this order have two wings (not counting the halteres, club-like limbs which are homologous to the second pair of wings found on insects of other orders).
The Ceraphronidae are a small hymenopteran family with 14 genera and some 360 known species, though a great many species are still undescribed.It is a poorly known group as a whole, though most are believed to be parasitoids (especially of flies), and a few hyperparasitoids.
Belgica antarctica, the Antarctic midge, is a species of flightless midge, endemic to the continent of Antarctica.At 2–6 mm (0.08–0.2 in) long, it is the largest purely terrestrial animal native to the continent.
The insect order Zoraptera, commonly known as angel insects, contains small and soft bodied insects with two forms: winged with wings sheddable as in termites, dark and with eyes (compound) and ocelli (simple); or wingless, pale and without eyes or ocelli. They have a characteristic nine-segmented beaded (moniliform) antenna.
The name was originally coined in 1915 for a group of fossil orthopteroids, and largely forgotten until it was resurrected and redefined ("Notoptera Crampton sensu novum") by Engel and Grimaldi in 2004 (after the discovery of living Mantophasmatidae), who recommended to give a single order that includes both the living and fossil representatives of the lineage.
Grylloblattidae, commonly known as the icebugs or ice crawlers, is a family of extremophile (psychrophile) and wingless insects that live in the cold on top of mountains and the edges of glaciers. It is the only member of Grylloblattodea , which is generally considered an order .
Pterygota (/ ˌ t ɛ r ə ˈ ɡ oʊ t ə / terrə-GOH-tə [2] Ancient Greek: πτερυγωτός, romanized: pterugōtós, lit. 'winged') is a subclass of insects that includes all winged insects and groups who lost them secondarily.
The primary characteristic of the apterygotes is they are primitively wingless. While some other insects, such as fleas, also lack wings, they nonetheless descended from winged insects but have lost them during the course of evolution. By contrast, the apterygotes are a primitive group of insects that diverged from other ancient orders before ...