Their saliva has an anti-coagulant that keeps the blood flowing, which they sponge up with another little protuberance called the labella. (news.ufl.edu/2002/08/13/deerflies/ [dead link]) And in Michigan an avid gardener is blogging about her deer fly trap umbrellas, topped with blue cups covered in Tangle-Trap, that she uses to capture enough deer flies to allow her to work unmolested outside. Adult life span is 30 to 60 days. Wings: Their wings are clear, but with dark bands or patches. No comment on that one. You can try to outrun them, but these flies hunt by sight and are attracted to movement. Pupae measure about 15 mm in length and are white at first but turn light brown in a … Color: Their bodies are gray or light brown and some species have yellow and black striping. Common Name: Deer Fly (Information for this species page was gathered in part by Mr. Christopher Hone for an assignment in Biology 220M (Spring semester, 2007) “Deer fly” is a common name for any of 250 species of the genus Chrysops.Deer flies are found all over the world, and 45 deer fly species are found in Pennsylvania. This is due to the fact that the number of deer flies on our property this year is significantly lower than that of any previous deer fly seasons we've ever experienced (this is our 23rd season). The Terrible Deer Fly - Plus - An Easy Control Method. An egg mass has been found as early as May 5th and as late October 13th. [Remember, 2012 was the year where spring came very early and was very warm.] Deer flies are members of the horse fly family, Tabanidae. Deer flies are bloodsucking insects considered pests to humans and cattle. And they bite. Scientific Name: Chrysops sp. Another species is so big — about 1½ inches long — that Mainers often refer to it as a “moose fly.”. But it won’t be long before you have another one.”. Common Name: Horse fly, deer fly Scientific Name: Varies Order: Diptera Description: There are over 100 species of horse and deer flies known to occur in Texas. They are very persistent, and commonly fly around a person’s head until they get an opportunity to bite. Though the common names — deer fly, horse fly and moose fly — are sometimes used interchangeably, people generally use the term “deer fly” when describing species in the genus Chrysops, said Howard Russell, entomologist at Michigan State University. Dill is working on a project that involves capturing and identifying different deer flies and horse flies throughout Maine. And usually, people don’t thoroughly spray their scalp. New Hampshire’s ever-changing weather and scenery drive the NH tourism economy and collective mood swings. Well, folks, this is my first post with actual trapping data from the 2013 deer fly season. The horse fly is a large fly (10-30 mm in length) that is a serious nuisance to livestock. Both genuses are in the Tabanidae family. You are encouraged to learn more about the biology of horse and deer flies to avoid being bitten and to understand the public health risk posed by these insects. The size of a deer fly lies somewhere between the horse-fly and the housefly. Luckily there is a really easy solution. This family also includes the notorious greenhead flies that have sent families running for home during seaside holidays and the mammoth horse flies that are Willard Pond’s best weapon for keeping number of daily visitors down. Distinguishing them from other kinds of flies, horse and deer flies are stout and usually medium to large. Adults of most species are seen for only about one month, but often there is an overlapping succession of species during the season. But, it can be a daunting task to locate a deer fly. These flies show no compassion on the unsuspecting person who crosses their path. The head is small, cylindrical and retractable. I'll let readers insert their own joke here about blood-sponging females. Deer flies are recognized hosts of tularaemia which is a filarial parasite that causes Loiasis. “Deer fly” and “horse fly” are common names used to describe hundreds of species in the Tabanidae family. Dr. Russell F. Mizell North Florida Research and Education Center University of Florida Route 4, Box 4092 Monticello, FL 32344 The Problem: Insects in the horse fly family Tabanidae suck blood and are very important nuisance pests of man and livestock as well as wildlife. In the United States and Canada, about 350 different species of these flies exist, and they vary greatly in size and appearance. And the larvae feed on aquatic predators, including mosquito larvae. They can transmit several animal pathogens mechanically. “I have at least 15 to 20 species where I live,” he added. The male deer flies, for their part, don't bite and are known to hang around drinking beer and watching sports on TV. Also, they do not use scent to find their hosts (as mosquitos do), therefore, it doesn’t matter if the repellent masks your scent. Antennae: antennae are usually longer than their head. While “horse fly” is typically used to describe species in the genus Tabanus. Unfortunately, insect repellent doesn’t seem to deter these flies much, Dill said. The bites can be painful--female deer flies have two sets of scissor-like teeth that cut through skin in order to slice into a blood vessel. HORSE & DEER FLY FACTS: Although most flies have mouthparts adapted for sucking, female horseflies are able to cut into flesh with their knife-like mouthparts. 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