Chrysops flavidus
This record describes Chrysops flavidus (species). Recorded family: Tabanidae. Recorded order: Diptera.
Identification and Appearance

described as pestiferous to humans, generally attacking the head and neck; considered one of the worst stock pests in the genus With known pathogenic transmission of Equine infectious anemia virus, a disease of only equid mammals.
Classification
Habitat and Range
Geographic Range
e. US (MA-FL to MO-TX) to Belize; W. Indies [ map ]
Additional species information
Species notes from the sources
Etymology: Chrysops flavidus Wiedemann 1821
About Flies: the wider group
Order-level background for Diptera, the group containing Chrysops flavidus. Species-specific details appear above.
Group overview
Diptera includes over 150,000 described species of flies, mosquitoes, and midges. Mosquitoes are the deadliest animal on Earth (CDC). Malaria alone causes ~249 million cases and over 608,000 deaths annually, mostly children under 5 (WHO). Vector-borne diseases account for over 17% of all infectious diseases, causing 700,000+ deaths per year.
Ecological role of the group
Despite their disease impact, flies are critical decomposers and pollinators. Hoverflies alone pollinate hundreds of crop and wildflower species. Flies are also the primary food source for many birds, bats, and fish. Forensic entomology relies heavily on fly species for crime scene analysis.
Economic and practical significance of the group
In the U.S., vector-borne disease cases tripled between 2004-2016, with over 640,000 cases reported in that period (CDC). Tickborne diseases doubled from 22,000 to 48,000 annual reports. Globally, mosquito-borne diseases cost billions in healthcare and lost productivity.
Recorded sources for this group: WHO, CDC, PNAS. Imported estimates may describe particular regions or reporting periods.
Photos of Chrysops flavidus (5)
Photo credits: Contributed by Tony; Additional contributions by Mike Quinn , Vox Sciurorum , v belov , Arturo Santos
Frequently Asked Questions About Chrysops flavidus
What is Chrysops flavidus?
Chrysops flavidus is a species in the family Tabanidae, within the order Diptera.
How big is Chrysops flavidus?
6.5-10 mm
Where is Chrysops flavidus found?
Range: e. US (MA-FL to MO-TX) to Belize; W. Indies [ map ]
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