Tabanids and Bot Flies (Oct. 20)

Tabanids and Bot Flies (Oct. 20) - TabanidsandBotFlies...

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Tabanids and Bot Flies Order: Diptera o 188 families o 10,000 genera o 150,000 species Diptera o Last lectures: House Fly,  Musca domestica Face Fly,  Musca autumnalis Stable Fly,  Stomoxys calcitrans Horn Fly,  Haematob iairritans Screw worm (blowfly),  Cochliomyia hominivorax Flesh Fly (Sarcophagidae) Keds (Hippoboscidae)  Sand Fly (Psychodidae) Black Flies (Simuliidae) Biting Midges, Ceratopogonidae) o This lecture: Horse and Deer Flies (Tabanidae) Bot or Warble Flies (Oestridae) Horse and Deer Flies: Tabanidae o 4,300 species of Tabanids o 6-30 mm in length (some are big!) o Painful bite; females require blood meal for eggs (some autogenous) o Univoltine:  o Larvae, aquatic, predators o Colorful compound eyes o Hosts targeted: Large mammals Reptiles Birds o Many ommatidia Mating Host seeking o Attracted to certain color o Target certain regions Deer flies target high (head region) Horse flies more diverse; often legs or ventral o Blood feeding
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Tabanidae Importance o Nuisance Recreational impact (10 bites per minute) Larvae have painful bite on swimmers Livestock (cattle, horses) Reduce weight gains Reduce milk production
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