Flies And Fly Maggots Larvae
Flies described in this section are actually flies of the Muscidae family (majority), Calliphoridae, Sarcophagidae, Chloropidae, Diptera, Insecta, non-blood-sucking flies, with flexible, flexible proboscis, heads The hose has two suction cups containing many small suction pipes.
1. THE FORM OF THE RUIN
Common fly species.
Or often called house flies Muscidae, Muscinae sub-family, about 6-9mm in size, dark gray, on the back of the chest with four black stripes. The medial chest carries two membrane wings
There are two important varieties: Sarcophaga and Wohlfahrtia. The Sarcophagidae flies are large, about 8-15 mm, gray, on the flank of the middle chest with three black stripes, the dorsal surface of the abdomen has alternating dark and dark cells that look like chess board umbrellas
Including the varieties Calliphora, Lucilia, Chrysomyia usually have metallic green color (Lucilia spp) Or dark blue (Calliphora spp.) From 5-13 mm long depending on the species.
2. BIOLOGICAL CHARACTERISTICS OF RULE
Female flies lay eggs (particularly Sarcophaga spp, spawn larvae) in moist areas with lots of organic matter, feces, garbage, decomposers, rotten food, carcasses, etc.
Eggs: elongated shaped like bananas, ivory-white, about 1.2mm long, sporadically laid but gathered in small groups. Eggs must be laid in a moist place or they will not hatch
Larvae: Eggs hatch stage 1 larvae in about 8-20 hours in humid temperature and immediately eat the food available where the eggs are laid and develop through three larval stages The early larvae are about 3 - 9mm long, ivory-white, pointed but pointed at the head. The larva's mouth has two hard, dark chitin hooks used to tear the bait. Stage 3 larvae are about 12 mm long. The larvae complete development in 4 - 13 days with optimal temperature conditions.
. Once the larvae are fully developed, they can crawl as far as 2-3 meters (but can crawl as far as 15 meters) to a cool, dry place and crawl into a porous soil that is transformed by the pupal stage.
Nymphs: The fly nymph is immobile, about 8 mm long, the tube shape as the shape of about 8 mm, the tube shape like miniature wine barrel with the crust formed from the shell of the terminal larvae. Nymphs vary in color from yellow, red, brown, and black according to the age of the pupa. Metabolism of pupae is about 2-6 days at 32-370CC but can last 17-27 days at 140C Adult flies will come out of the pupal shell by using a shrinking and bulging pouch called ptilinum in front of the head to act like an air hammer to break the capsule.
Flies mature: after escaping from the pupa shell, flies must sit on the ground for a while for the body to harden before flying to find food. Flies can live an average of 15-20 days but can also take up to 2 months. However, without food, the fly will die within 2-3 days.
3. THE ROLE OF MEDICINE OF THE RUIN
Role of disease transmission
With a suction-mouth structure, flies suck only small, liquid foods with holes of about 0.
.5 µm at the nozzle and two suction blades. When encountering hard food, flies release saliva and fluid contained in the kite to soften or liquefy food and then smoke With the structure of such a mouth part and eating habits, flies transmit pathogens in the following ways:
Flies rely on the fluid contained in the kite to liquefy or soften the food, pathogens that are present in the fluid and are also released from the litter on human food.
Flies usually defecate while eating and the pathogens follow the faeces.
Flies dropped pathogens on their bodies, especially their legs when they landed on food or cups.
Pathogens are attracted to flies by ingestion, but the pathogen does not change its stage and does not increase in number, so flies are not vectors but play a role in transporting germs. Although this role is passive, but when fly density increases, environmental sanitation as well as food hygiene, personal hygiene is poor, the pathogens carried by flies such as cholera, dysentery, typhoid, amoeba cysts, worm eggs, and flukes can also become dangerous outbreaks.
Pathogenic role: Maggots
Maggot is a disease in humans or animals caused by flies larvae. The larvae parasitize and feed with healthy tissue or dead tissue or organ fluid in host tissue. It can be divided into three groups of flies:
Group of mandatory parasitic fly maggots: The fly larvae are required to parasite in healthy tissue to grow.
Group of semi-compulsory parasitic fly maggots: The common parasitic fly larvae in organic matter, animal feces but can parasitize wounds, ulcers of the host.
Accidental parasitic maggot group: Random fly larvae and host organ.
Human maggots can be found in different places on the body but can be described as follows:
Only one species of Auchmeromyia luteola larvae lives dependent on humans in tropical Africa. The larvae feed on the blood of people sleeping on the ground in the tent at night.
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