deer bot fly deer bot fly

Medical & Veterinary Entomology by Gary Mullen and Lance Durden, Academic Press, Boston, MA. Available for both RF and RM licensing. I asked several hunters I know if theyve ever observed one of these larvae, perhaps emerging from a downed deer, and only one reported having seen one. Species - Deer Bot Fly - Cephenemyia jellisoni. At least five types of deer botflies in North America, and they infest whitetails, mule deer, moose and elk. This happens in animals that lick themselves or rub their noses on body parts. Adult bot flies are usually most common where their host species are common. Copyright 2023, University of New Hampshire. Here's some links if you want to download a whole group. The larva of Cephenemyia auribarbis, infesting the stag, is called a stagworm. The word "bot" in this sense means a maggot. [6] (For comparison, the speed of sound in air is 768 mph/1236kmh .) Description and Distribution. Using a venom extractor syringe from a first aid kit to suck the larvae from the skin. Bee-Like Robber Fly. Get tips from Steve Bartylla in this Hunt em Big. Meat from affected animals is safe for human consumption. She might lay eggs directly on the host, but some animals are wary of botflies, so the flies have evolved to use intermediate vectors, including mosquitoes, houseflies, and ticks. Usually the larvae do not cause considerable harm to the host other than mild irritation, but heavy infestation may be fatal to the host (death by suffocation) and consequently to the parasite. Kingdom Animalia > Phylum Arthropoda > Class Insecta > Order Diptera > Family Oestridae > Genus Cephenemyia . Don't Panic. What. pratti. Resembling an insect that can deliver a painful sting is an effective defense against being troubled by potential predators. 35: 245-252. Fully grown larvae are 16-20mm (almost 1 inch) long, dark brown and covered with short, stiff cone-shaped bristles. ThoughtCo. The eggs of a botfly hatch in the uterus of the female fly and while in flight she ejects minute larvae into the nostrils of the host deer. After development is complete, the mature larvae are expelled from the host and pupate in the soil. Understandably, many people opt for medical removal of the bot. Habitat: The human botfly lives primarily in Central and South America. I hope youll join me in exploring the natural diversity of this incomparable place! The meaning of DEER BOTFLY is a botfly of the genus Cephenemyia. We email a monthly eNews with updates on our projects and programs, as well opportunities to learn online and in-person. However, without any exception, stags are found to have maggots living inside the head, and the habitat of these creatures is in the hollow underneath the root of the tongue and in the neighbourhood of the vertebra to which the head is attached. EXPLORE OTHER MEDIA 360 PROPERTIES FOR OUTDOORS ENTHUSIASTS, View More Dan Schmidt Deer Blog - Whitetail Wisdom, Fencing Options for Better Deer Food Plots, Despite Intense Pain, Bowhunter Drops 178-Inch Giant, TenPoint Crossbows Named Best in Archery in Kinseys Dealers Choice Awards, #48: THE BEST TIME TO HUNT BIG BUCKS with Josh Honeycutt | Deer Talk Now Podcast. They are large, gray-brown flies, often very accurate mimics of bumblebees. The larval stages of Cephenemyia are obligate parasites of cervids. 2016 - 2023 Biodiversityworks. Compared to native host species (like white-footed mouse), non-native hosts (Norway rat, black rat, house mouse, etc.) Their larvae are internal parasites of mammals, some species growing in the host's flesh and others within the gut. If not, extra pressure on the outside borders must be applied, to try and get it out. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. J. ), 5 species in North America. These wings will come with dark bands. Botflies are found globally and parasitize many species of animals such as mice, squirrels, and rabbits. The eggs of a botfly hatch in the uterus of the female fly and while in flight she ejects minute larvae into the nostrils of the host deer. Look for this PDF icon as you search and browse. Their larvae live inside living mammals. There is no known risk to humans. in Tennessee.During a 15-year period, Cuterebra sp. This will asphyxiate the larva to make removal easier. Richard Gingrich. The larvae are short, pudgy, segmented grubs that live as parasites in the tissues of animals. Looking at the photos, I immediately noticed the absence of mouthparts, figured that meant a bot fly, and in short order was able to ID the fly as Cephenemyia phobifer a deer nose bot fly. Browse 77 bot fly stock photos and images available, or search for dog fly or lion to find more great stock photos and pictures. The earliest known cases of deer botflys was documented by the Greek philosopher Aristotle in 384 BC when he noted the prevalence of nasal botflies in red stags, so this is something that deer have been dealing with for many generations. Updates? Other articles where deer nose bot fly is discussed: bot fly: the North American and European deer nose bot flies (Cephenemyia) and the sheep bot fly (Oestrus ovis). deer bot fly This adult deer bot fly, Cephenemyia phobifer, was resting on a support beam at the top of a fire tower in Osage County. Abstract. When the botfly or its vector lands on a warm-blooded host, the increased temperature stimulates the eggs to drop onto the skin and burrow into it. This bug is reputed to have at-tained the surprising speed of 818 miles per hour (sound travels 740 miles per hour). What is the fastest speed a deer botfly ever gone? Bot flies, found in Central and South America, produce larvae containing internal parasites of mammals and lay them on human skin. It is all in vain. These larvae quickly migrate through the nasal passages into the nasopharyngeal (throat) region, preferably in the throat (retropharyngeal) pouches (causing nasopharyngeal myiasis in the host), where they settle and develop. The larvae can spend between four and 18 weeks burrowed into the host before falling off to pupate in the soil. Once inside they migrate to sinus cavities, where they develop into big fat maggots. She has taught science courses at the high school, college, and graduate levels. Nasal bots are the larvae or "maggot stage" of a specialized fly. Omissions? To maintain a velocity of 800 miles per hour, the 0.3-gram fly would have had to consume more than 150% of its body weight in food every second; The supersonic fly would have been invisible to the naked eye; and, This page was last edited on 3 January 2023, at 21:35. Helmenstine, Anne Marie, Ph.D. "Fascinatingly Gross Botfly Facts." We facilitate and provide opportunity for all citizens to use, enjoy, and learn about these resources. We have three species of them in New Hampshire. Many types of flies mimic bees. The larvae irritate the skin, producing a swelling, or "warble." Dermatobia hominis is the only species of botfly known to parasitize humans routinely, though other species of flies cause myiasis in humans. View taxon at NatureServe. As the larva grows, a boil-like swelling (called a warble) develops in the host. A fascinating account of the speed of a Deer Bot fly, Cephanomvia pratti, was made by entomologist C. H. T. Townsend in 1926 by estimating the speed of the fly as it flew between mountaintops. Deer Bot Fly - Cephenemyia jellisoni. About one week after laying, the eggs are ready to hatch, but they must wait for a sudden increase in temperature to trigger that hatching. I managed just a couple of photos before it darted off again. To create your own list of species, use the PDF Creator tool at the bottom of the Advanced Search page. I recently encountered an example of one of the stranger things the world of Diptera has to offer: the bot fly Cephenemyia phobifer. Meanwhile, in cases where harmless species have adapted to copy the look of harmful species, basically fooling potential enemies into leaving them alone, its termed Batesian mimicryagain, after the biologist who proposed the idea. [5] Most other species of flies implicated in myiasis are members of related families, such as blow-flies. 2 generations have been reported from the north, with the duration of each life cycle varying with the season. http://www.deeranddeerhunting.com/ Learn more about nasal bots and how they affect deer year-round. The speed attainable by insects is currently poorly understood and insect airspeed is one of the least known features of flight performance. Their life cycles vary greatly according to species, but the larvae of all species are internal parasites of mammals. deer bot fly. Of families of flies causing myiasis, the Oestridae include the highest proportion of species whose larvae live as obligate parasites within the bodies of mammals. The only species of botfly that parasitizes humans is Dermatobia hominis. [9][10], Philornis botflies often infest nestlings of wild parrots, like scarlet macaws[11] and hyacinth macaws. The larvae migrate to the pouches that lie on either side of the throat at the base of the tongue. Theres an amazing array of insects, worldwide, that strongly resemble stinging bees and wasps. In the meantime . When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. After that, the tape should be removed and, on removal, it is necessary to check ifthe larva has also been removed with it. The head end is narrow, while the rear end is broad and blunt. [2] Eggs hatch in the uterus of the female. A fascinating account of the speed of a Deer Bot fly, Cephanomvia pratti, was made by entomologist C. H. T. Townsend in 1926 by estimating the speed of the fly as it flew between mountaintops. The just-hatched larva of C. fontinella enters white-footed mouse through mucous-lined openings like mouth, eye, nose or anus. Fun Fact: Botfly larvae are edible and are said to taste like milk. Our most common bot fly is Cuterebra fontinella, reported to occur in most of the continental US (except Alaska), plus southern Canada and Northeastern . It shows the thicker antennae of the genus Laprhia which differ from the antennae that are thin and threadlike at the final segment in the genus Mallophora. Adult bot flies generally lack functional mouthparts and are unable to feed; because of their resulting short adult life spans and the hidden lives of their larvae, bot flies are not frequently encountered. The adult lacks biting mouthparts and does not feed. What you are likely observing are bot fly larvae (genus Cephenemyia). When a deer's body cools down, these larvae sometimes migrate into the throat region. Dr. Langmuir more or less definitely . The larva should be removed as soon as possible, to avoid worsening of theinfection. Description. Larvae (probably this species) have been found parasitizing dogs and humans in New Hampshire. In severe infestations, the parasites may interfere with the hosts ability to gain nutrition (stomach or intestinal bots) or to breathe (nasal or throat bots that can suffocate the host). However, Langmuir (1938) refuted this claim calculating that to attain this speed (equivalent to half a horse power) the fly would have to consume 1.5 its own weight in fuel every second. US, Larvae are endoparasitic in deer, moose, and elk, particularly in the throat (retropharyngeal) pouches near the base of the tongue; adults are free-living. Stagworm - Definitions from Dictionary.com. Infestation is characterized by an irritated bump with a hole in the center for the larval breathing tube. Bot flies can parasitize several species of livestock. Other reports (species not determined) are from voles and chipmunks. Saturday Night Deer Camp: Its all about the people, the places and the camaraderie that make hunting a lifestyle. Varies by species. Also, large numbers of adult bot flies can distress livestock with their incessant attacks around the nose and mouth. They are black with pale yellow markings and smoky wings. The fastest insect is the deer botfly, which can reach flight speeds of up to 36 mph. It has brightly colored compound eyes and large clear wings to match. in 1985 and 1986. Botflies deposit eggs on a host, or sometimes use an intermediate vector such as the common housefly, mosquitoes, and, in the case of D. hominis, a species of tick. Adult female flies deposit small larvae on the skin of the nose and mouth of white-tailed deer. The larva, already mobile, makes its way into the nasal cavity or throat of the host animal, where it remains, feeding on the tissue and fluids of the host until it reaches maturity. called deer bot-fly. Corrections? Click it to build a custom PDF with species shown on that page or for all the species within that taxonomic level. All Rights Reserved. People who live in other areas generally get infected while traveling. [12] A method using a reverse syringe design snake bite extractor prooved to be suitable for removing larvae from the skin. Fawns and adult deer greater than or . [4] A warble is a skin lump or callus such as might be caused by an ill-fitting harness, or by the presence of a warble fly maggot under the skin. They can . 1986. View in other NatureServe Network Field Guides. 2002. Post graduate in Clinical Dermatology, Cosmiatric and Surgery by CMMG in 2012 and member no. Some flies are blood suckers, such as the sand fly (Phlebotominae). Mix all of these ingredients together. 63% of the southeastern NH specimens in the UNH insect collection were found during August, as was the adult in my photograph. 1981. Contributors own the copyright to and are solely responsible for contributed content.Click the contributor's name for licensing and usage information. The name deer botfly (also deer nose botfly) refers to any species in the genus Cephenemyia (sometimes misspelled as Cephenomyia or Cephenemya), within the family Oestridae.They are large, gray-brown flies, often very accurate mimics of bumblebees.They attack chiefly the nostrils and pharyngeal cavity of members of the deer family. Mothlike in appearance, sand flies can be found inhabiting organic matter in animal burrows, termite hills, and tree holes. If you think you are your livestock or pets are parasitized by bot flies, seek medical attention. Before removing the larva, it's important to verify whether it is already dead, as small fragments of the larva'sbody could be left inside the skin, making the removal much more difficult. After removing the larva isimportant to treat the region with aantibiotic ointment, which can be prescribed by a doctor, to prevent further infection by bacteria. [2], It was reported for many years that Cephenemyia was the fastest of all flying insects, cited by The New York Times[5] and Guinness Book of World Records as traveling at speeds of over 800 miles per hour (ca. Adults do not eat. When a horse rubs its nose on its legs, the eggs are transferred to the mouth and from there to the intestines, where the larvae grow and attach themselves to the stomach lining or the small intestine. The deer botfly (Cephenomyia pratti Hunter) is a small, blunt-headed insect which sprays its eggs into the nostrils and throats of deer, scattering them like tiny bombs while on the wing. Our most common bot fly is Cuterebra fontinella, reported to occur in most of the continental US (except Alaska), plus southern Canada and Northeastern Mexico. Bot flies are chunky, beelike flies usually with rounded heads. Cephenemyia phobifer Deer Bot Fly Cuterebra americana Woodrat Bot Fly Cuterebra fontinella None We humans are horrified by parasites, but as a way of life, parasitism is much less violent than outright predation. Support RoeStalker - become a Patron!https://www.patreon.com/roestalker I always say people are missing out not boiling out their trophies :-) This is a head. (white-footed or deer mouse) caught by his cat that had 16 bot fly larvae! Journal of Parasitology, volume 67, pgs 398- 402. Would you like to receive email notifications when we publish a new post? The human botfly (Dermatobia hominis) is a tropical species that occurs from southern Mexico south into most of South America. Its larvae are parasites of livestock, small animals and even humans. Dragonflies can fly about 25 miles per hour. Botflies are normally found in Central and Southern America. Bot flies arent even capable of biting, much less stinging. Other European species include C. auribarbis and C. They can cause some symptoms such as: The diagnosis of botflyin humans is usually made by adermatologist or aninfectologist through the observation ofthe woundon the skin. Species found in the United States include C. apicata, C. jellisoni, C. phobifer, C. pratti, and C. Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. Some types live in the nasal or throat cavities of deer. For an unforgettable account of a field biologists, um, hair-raising adventure with a human botfly, read the chapter Jerrys Maggot in Adrian Forsyth and Ken Miyata, Tropical Nature: Life and Death in the Rain Forests of Central and South America. The source of this myth was a report in the Journal of the New York Entomological Society: "On 12,000 foot summits in New Mexico I have seen pass me at incredible velocity what were certainly [botflies.] Some species do not develop in the skin but are ingested and burrow into the host's intestine. The black-and-yellow (or black-and-red) color pattern is understood by many, many animals as a sign of I could sting you. This sophisticated web of warning colorations (and bluffs!) We strive to provide accurate . [8] Among his specific criticisms were: Using the original report as a basis, Langmuir estimated the deer botfly's true speed at a more plausible 25 mph/40 kmh. 2007 - 2023 Tua Sade All rights reserved. Exciting news continues to roll in for deer hunters and opportunities to watch great shows! in order to confirm the diagnosis. Adults do not have functional mouthparts and do not eat. The botfly life cycle always involves a mammalian host. Thompson F.C., Pape T., Evenhuis N.L. 455 State Rd., PMB#179Vineyard Haven, MA 02568. prevalence was 2.1%, which was lower than reported in other southern states.The highest prevalence of Cuterebra infestation was in eastern Tennessee (7.9%) and the lowest in western Tennessee (0.9%). Larvae develop and migrate into the nasal passages where they develop further. A warm body coming in contact with the egg triggers the egg to hatch within a few seconds. In the Durham area, most of the adults are found from June through September. The human botfly, Dermatobia, has yellow and black bands, but other species have different coloration. You can significantly reduce the chances of being attacked, by sunbathing on a blanket, rather than directly on the grass. The botfly is any fly from the family Oestridae. Eggs hatch inside the female fly and the newly emerged larvae are deposited in the nostrils of a suitable host. Only on the Pursuit Channel! Bot flies are chunky, beelike flies usually with rounded heads. Where. Retrieved from https://www.thoughtco.com/botfly-facts-4173752. If you need expert professional advice, contact your local extension office. Eggs hatch inside the female fly and the newly emerged larvae are deposited in the nostrils of a suitable host. Diet: Larvae require mammalian flesh. Adults emerge after 2-3 weeks; since they do not feed, their life span is short and mating quickly ensues to complete the life cycle. From: The Top 5 Fastest Flying Insects on Earth > 1. Oral dosing with the antiparasitic avermectin, which leads to the spontaneous emergence of the larvae. Thats good news for deer! Image credit: Karsten Heinrich/Wikimedia.org. Useful information about remedies, diseases, examinations and treatments based on traditional and alternative medicine. If you have a high quality photo of this species, are confident in the identification, and would like to submit it for inclusion on the Montana Field Guide, please send it to us using our online photo submission tool. As with other true flies, bot flies have only a single pair of wings. However, other species grow within the host's gut. Whatever the case, he believed the Deer Bot fly to be fast! When it finds a suitable host (limited to white-tailed deer for this fly species on Marthas Vineyard), an adult female Cephenemyia expels a larva into a nostril of the deer. If you have a high quality photo of this species, are confident in the identification, and would like to submit it You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. The name deer botfly (also deer nose botfly) refers to any species in the genus Cephenemyia (sometimes misspelled as Cephenomyia or Cephenemya ), within the family Oestridae. Symptoms include a very painful small swelling or pore, firm furuncular lesion around the same pore. They reported a deer botfly with a speed of over 800 miles per hour. Note the bee-like appearance and absence of any visible mouthparts. The larvae originate from the deer's sinus cavity, nasal passages and/or pouches in the throat region. In large numbers, and varying with the species, the parasitic larvae can injure livestock, interfere with proper nutrition, or impede breathing. This procedure should always be guided by a physician, but one of the ways of doing it at home is to put a pieceoftapeover the wound and leave it for about an hour. 1287 km/h) . The process does no serious, lasting harm to the deer, though it cant be comfortable to host a bot fly larva! kentucky primary election 2022. Bot flies comprise the family Cuterebridae, and are parasites that attack mammals. It has also been reared from house mouse, Norway rat and roof rat. Botfly is an infectious type of disease that is caused by the Dermatobium hominis species of fly, which is gray with black stripes on the thorax and a metallic blue abdomen. () Acceptable modern experiments have established that the highest maintainable airspeed of any insect, including the deer bot-fly (Cephenemyia pratti), hawk moths (Sphingidae), horseflies (Tabanus bovinus) and some tropical butterflies (Hesperiidae), is 39 km/h (24 mph), rising to a maximum of 58 km/h . If this is ineffective, the removal of the larva should be doneby a doctor with the use of specialtweezers. Once . Infestation with larval flies is termed myiasis. Larvae are the only feeding stages; adults do not feed. The larvae are short, pudgy, segmented grubs that live as parasites in the tissues of animals. bot fly larvae in free living scarlet macaw nestlings and a new technique for their extraction", "Clinical pathology and parasitologic evaluation of free-living nestlings of the Hyacinth Macaw (Anodorhynchus hyacinthinus)", 10.1656/1528-7092(2006)5[157:CFPOPL]2.0.CO;2, "Les Stroud Beyond Survival: The Inuit Survivors of the Future", https://en.wikipedia.org/w/index.php?title=Botfly&oldid=1141926824, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 27 February 2023, at 16:08. most of NA excluding the Great Plains and parts of the se. Deer Bot Fly 43 40 3 Dragonfly 56 60 1 Hawkmoth 54 50 2 Hornet 34 30 4 Monarch butterfly 26 30 6 1) Use the facts below to complete the missing data in the table: The bumblebee flies at 5 kph slower than a hornet. Saturday Night Deer Camp is a primetime block of shows kicked off each week with the award-winning Deer & Deer Hunting TV. Our programs and projects are funded through grants and donations.Thank you for helping us to protect wildlife and biodiversity for future generations. Nasal Bot Fly Maggots in a Deer. Mature larvae drop from the host and complete the pupal stage in soil. https://www.thoughtco.com/botfly-facts-4173752 (accessed March 4, 2023). Journal of the Department of Agriculture of Western Australia, Volume 9, Pub: Western Australia. They do not kill the host animal, thus they are true parasites. The fly is best known for its larval stage or maggot. In more severe cases, it may be necessary to perform a minor surgery to cut the skin and widen the hole, allowing the larva to be removed. Adults are not commonly seen. The human botfly is 12 to 19 mm in length, with hair and spines on its body. After the eggs are laid by the female botfly, the larvae hatch after about six days, and rapidly penetrate the skin, even when the skin is intact and healthy. 2013 Belted Kingfisher & Swallow Colony Surveys, Center for Wildlife Studies Capital Campaign. Please try the buttons above to search for information from other sources. Usually eggs are laid on the host and the larvae cause damage to the host's skin or internal systems. These larvae are cylindrical in shape and are reddish orange in color. Bot fly larvae have been eaten by humans for thousands of years in places where other protein may be hard to come by, including by the Inuit, who commonly find caribou warble fly larvae in the caribou they have hunted. Often, they are attracted to open wounds or moist, protected parts of the body dirty with urine or fecal material (such as the rear ends of sheep or other livestock). Long ago, a claim was made that bot flies could fly 800 miles per hour, but that is clearly incorrect. Larvae are parasites that burrow into and develop within the tissues of their mammalian hosts. Well, its almost something out of a sci-fi movie. Other tips for recognizing them as true flies (and not the bees they mimic) include tiny antennae, large eyes, and a pair of knobby structures (halteres) where the second pair of wings would be. Applying the sap of the matatorsalo tree (found in Costa Rica), which kills the larvae but does not remove it. [11], Cuterebra fontinella, the mouse botfly, parasitizes small mammals all around North America. Others liken a botfly to a living "bot," or miniature flying robot because the reflective hairs give the fly a metallic appearance. This type of fly is usually found in humid, mountainous areas such as some parts ofBrazil and other tropical countries and, therefore, most people come into contact with them while traveling. Adult bot flies do not live very long, as they are incapable of eating. If an intermediate is used, the female grasps it, rotates it, and attaches her eggs (under the wings, for flies and mosquitoes). You have likely seen deer reacting to nasal bots in summer. Adult male bot flies often are attracted to high points in a landscape, which helps them find females (males of many kinds of insects do this, including several types of butterflies; its called hilltopping). They can cause some symptoms such as: Formation of wounds on the skin, with redness and slight swelling on the region; Release of a yellowish or bloody fluid from the sores on the skin; Check the confirmation mail we've sent you. Numbers of first, second and third stage bot fly instars were related to age, sex, year and geographic location of the mule deer. Entomol Soc. Adult length: about 1 inch. Eventually fully developed larvae will exit the deer (possibly through a sneeze) and pupate in the ground to . Because the bot larva secretes antibiotic chemicals, the wound it causes rarely becomes seriously infected, and people usually fare surprisingly well if they dont kill the insect. for inclusion on the Montana Field Guide, please send it to us using our online photo submission tool. Roughly 150 species are known worldwide. Those White Grubs in Your Deer's Nose Are Just Botfly Larvae. [1] The genus name comes from the Greek kphn, drone . Use a natural repellent. RT @CanHindusurvive: If I pass by a photo radar at posted speed limit & a DEER BOT FLY decided to fly across the contraption at exactly the same time, will I get a . The larvae remain attached and develop for 1012 months before they are passed out in the feces. wildlife research, monitoring, and mentoring . What is the worst thing about being a white-tailed deer? Nasal Bots in Deer: Harmless but Irritating. Different types of bot flies focus on certain types of mammals, and different species grow in different parts of their hosts body: some growing under the skin, some in the gut, some in nasal or throat passages, and so on. The Deer Fly is a large insect that comes in 250 varieties. As soon as the first symptoms appear, it is important to consult with a dermatologist, an infectious disease specialist or aG.P. botfly. Distinguishing Features: Hairy fly with a metallic "bot" appearance. The behavior is typical running around wildly, swatting their noses, sneezing and even submerging their snouts in water and blowing profusely. Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. There they become attached in clusters and develop into what can best be described as full-sized maggots. The easiest way to avoid getting infested with botflies is to avoid where they live. The Oestridae now are generally defined as including the former families Oestridae, Cuterebridae, Gasterophilidae, and Hypodermatidae as subfamilies. Plane Designers See 800-Mile-an-Hour Fly; Cephenemyia, Fastest Living Creature, Is Shown at the University of Rochester Museum. A single Deer Fly will be bigger than a house fly but smaller than a Horse Fly. Fly of the Month - the dead donkey fly and the reindeer bot-fly. [8] Removal of the eggs (which adhere to the host's hair) is difficult, since the bone and tendons are directly under the skin on the cannon bones; eggs must be removed with a sharp knife (often a razor blade) or rough sandpaper and caught before they reach the ground.