Species composition of Gasterophilus spp. (Diptera, Oestridae) causing equine gastric myiasis in southern Italy: parasite biodiversity and risks for extinction. Vet Parasitol. Jan 15;() doi: / Epub Nov Gasterophilus spp. infections in horses from northern and. Biology, prevention and control of HORSE BOT FLY infections, Gasterophilus spp . Species, occurrence, distribution, incidence, prevalence, life.

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Removing the Bots The larvae are excreted in the fecal matter, so it is important to clean up the feces on a regular basis. Por favor,activa el JavaScript! In the southern portions of Florida, the adult fly will be more active throughout the year whereas fly activity in central and northern Florida may be limited to late spring through early winter Kaufman et al.

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However absence of larvae in the feces is not always conclusive, because release may be intermittent. Although found throughout the entire state, geographical location determines seasonality of adult activity.

Gasterophilus – Wikipedia

Lateral view of the adult common horse bot fly, Gasterophilus intestinalis DeGeer. Eggs hatch into a maggot within seven to 10 days of being gasterophiuls. Some species may affect caribous as well.

After development inside the host, the larvae leave it with the feces. L2 then attaches to the base of the tongue and slowly migrates to the stomach. Fully developed larvae have hooked mouthparts that help them attaching to the hosts tissues. The larvae then penetrate the soil, where they transform into pupae and gasterophlus flies hatch 30 to 40 days later.

Gasterophilus spp. infections in horses from northern and central Kazakhstan.

Gastrus Meigen Both are indicated for the control of L2- and L3 larvae in gasterophjlus gastrointestinal tract. Occasionally, these bot fly larvae will enter the eye, rather than reside on the surface as is more common with the sheep nose bot, Gasterophklus ovis Linnaeus An additional rare form of horse bot myiasis is called cutaneous myiasis. Retrieved from ” https: Injuries may result as the horse tries to rid themselves of this hovering fly.


The eggs contain two regions on the lower half which surround the hair allowing for attachment and another region extending at a thirty degree angle from the hair NDSU Larvae present in large numbers in the stomach can cause blockages and lead to colic. Eggs are laid on the body of the host and gasterophiljs hatch spontaneously or are stimulated to hatch through an increase in warmth and moisture from the animal self-grooming.

The development of L1 into L2 occurs on the pharynx. Photograph by Lyle Buss, University of Florida. This typically occurs during the early summer months. Medical Gastreophilus Back to Top The horse bot fly occasionally can cause what is called ocular myiasis, or invasion of the eye by first stage larvae.

Dorsal view head on left of the third instar larva of the common horse bot fly, Gasterophilus intestinalis De Geer. The horse bot fly causes indirect damage to the horse through attempts at egg laying.

This can disturb the proper functioning of these organs secretion, motility, etc. Injuries can aso occur as the horse tries to avoid hovering flies. Five species of Gasteophilus were identified with the following prevalence: This article related to members of the muscomomoph flies superfamily Oestroidea is gaasterophilus stub.

On the whole, If you would like to help with this, please see more information about expert reviewing.

You can find additional information in this site on the general biology of insects and on the parasitic flies. Hosts Back to Top The common host of this particular species of bot fly is the horse.

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After the fly emerges from the pupa, it quickly finds a mate. All subfamilies within Oestridae are related by their larval feeding characteristics. But massive infections can also cause significant damage, particularly to young foals. Gasterophilus intestinalis and G. Usually only one generation is produced each year. Gasterophilus LeachSpecies G. Because it is a fly, is has only one pair of wings. Tick, fly, and mosquito control — Lessons from the past, solutions for the future. Ventral view head on left of the third instar larva of the common horse bot fly, Gasterophilus intestinalis DeGeer.

Details Written by P. Adult bot flies then emerge and the cycle repeats. Horse bot fly, Gasterophilus intestinalis DeGeeregg casings hatched attached near the tip of horse hairs.

Warm water with appropriate insecticide can be used to induce the eggs to hatch and kill the larvae. Once the male and female flies meet, they sink to the ground and copulation occurs within three to four minutes.

The adult has small, nonfunctional mouthparts and does not feed DuPonte and LarishKaufman et al. The most relevant species for domesticated animals are in Europe and the Americas are:.

The adult female lifespan lasts seven to 10 days Williams and Knapp Lateral view of an adult horse bot fly, Gasterophilus intestinalis DeGeer.

Causes Diagnosis Treatment Recovery Advice. Dispersal also occurs during larval stages by transport of infested equines from one location to another Zurek The wings have brown patches.