Brake, fly blind or blind cuckoo
Brakes are like gnats to the order Diptera (Diptera) and the blood-sucking insects, in which only the females suck blood. Worldwide, there are about 4,000 previously known species that occur at altitudes of 5,000 meters. Brakes depending on the region as a fly blind or blind cuckoo called. They are up to 3.5 cm long and her eyes are conspicuously colored. The mouthparts of brakes are constructed saw-like and cause painful stings during blood feeding. Brakes have short antennae (aerials) and two fully formed front wing. The rear wings are transformed into halteres (Schwingkölbchen = guidance).
Development of the brakes
The females lay the brakes after fertilization depending on the type 100-1000 cohesive eggs on the stems of riparian plants. After 5 to 7 days, the larvae hatch, which then migrate to the shore mud and eat there from Detrius (organic material) or predatory life. After at least nine molts, the larvae pupate in drier regions of the bank, and then two or three weeks later, it emerges as a fully developed brake. In temperate regions there may be two or three generations per year develop. In tropical areas, brakes multiply within the year.
As pests of humans and grazing animals generally have three species in question:
Tabanus , the actual brakes, with clear wings and uniformly colored or with horizontal stripes verse-set eyes.
Haematopota , also known as rain brakes or blind flies exhibiting conspicuous spotted wings and a zigzag eye color.
Chrysops , with wings that have a wide toned stripes and where the eyes are colored patchily.
Brakes are quiet and fast flyer
Brakes can identify with their large compound eyes human and animal populations and track their movements with incredible speeds. It brakes are pursuing quite capable, horse riders or cyclists and seek. Brakes can be stubborn and not only annoying, they can also be a number of diseases transmitted.
Brakes and biting flies can transmit diseases
Brakes can be dangerous, since they in the West Africa Wanderfilariose , also known as Loa loa filariasis worm transmitted is designated. The disease is relatively rare, affecting the skin and the eyes . The Wanderfilariose is caused by Loa loa worm, which can grow up to 6 inches long. The worm larvae enter through the brakes puncture in the skin. Through further migration through the subcutaneous connective tissue, the worm larvae enter the connective tissue of internal organs, where they mature into worms (in one to four years). When the worms reach while the eye, they cause tearing, itching and burning. The disease is also egg-large swellings on his arms and face are typical. This swelling will disappear after a few days to show up again in another place.
The Tsetseflieg s transfers in Africa, sleeping sickness in humans. pathogens are called trypanosomes. If after a few days after a Tsetsefliegenstich to redness and swelling at the sting site, one must consider the diagnosis of sleeping sickness. But not only the man is visited by the pesky tsetse flies. Large animals such as zebras and antelopes especially bitten by the fly. The animals are unlike us humans immune to the pathogens of the tsetse fly. The raising of cattle in tsetse areas not possible because the tsetse fly transmits a disease (disease) called nagana, which is also caused by trypanosomes and leads to the death of cattle.
Stings from brakes and biting flies are painful
Brakes keep preferably in the vicinity of grazing animals and their stables. But along waterways come brakes often. On humid days brakes are particularly active. Since fly brakes noiselessly, the brakes stitch is often only noticed when the sucker goes into the skin. brakes stings are painful because of the saber-like mouthparts. After braking stitch prevents injected by the insect material blood clotting, so the injection site further bleeds for a short time . In comparison to other blood-sucking insects the mouthparts of brakes are very large. This leads to severe bleeding into the skin. That is, it caused hematoma (small bruises) at the injection site , the long time are visible. brakes A stitch itch often very strong.
Biting flies sting
Biting flies bites resemble mosquito bites . In most cases the effects of the sting are more pronounced than in mosquito bites. The sticking point is undermined bloody and swollen after a sting biting flies by whealing very strong.
Brakes and flies preferred to keep in livestock
In summer, on pastures or near horse farms acquaintance with brakes and biting flies do. Bloodsucking insects are attracted by sweat and feed preferentially on the blood of grazing animals. The brakes suck the females blood in the biting flies feed on principle both sexes from the blood of their hosts. humans and in rare cases even pets, such as dogs and cats are plagued by brake bites or biting flies bites. Will be looking for brakes and biting flies on weak hairy parts of the body, such as the face or ears, where they suck blood. Brakes can suck blood levels of 0.2 milliliters.
Brakes and flies are flying fast
Brakes and biting flies are quick and skilful pilot when it comes to pursuing a host. They are characterized by their distinctly colored eyes and their antennae that look like horns. An brakes bite or biting flies sting not been unnoticed. Sun brakes and biting flies can certainly fly to people unseen, but the clunky mouthparts is a brake down or biting flies sting is very painful. As with most stinging insects, brakes and flies inject during feeding an anticoagulant secretions. Since the puncture wound in comparison to mosquitoes is relatively large due to the size of the mouth parts, it comes after the suction to bleeding.
Brakes and biting flies are a nuisance to livestock
Unfortunately, it is not adequately protected by long clothing before brakes bites because they can stand with their mouth parts through clothing. They are not only for people extremely annoying. Brakes and biting flies can move through their bites agricultural animals in such turmoil that the income of milk and meat can be significantly smaller. Furthermore, some are pathogens known to the brakes through bites or stings and biting flies most notably by Stomoxys or tsetse flies can be transferred to humans and animals.