Stock photography picture of Adult African American African American America American Anatomical Anatomy Animal Life Stage Anim...

ATKTBB - Licenced Description Adult African American African American America American Anatomical Anatomy Animal Life Stage Animal Life Process Animal Area Around Arthropod Arthropoda Axial Human Biological Biology Biological Classification Bite Bite Black Blood Body Bug Canada Certain Concept Connective Tissue Continent Considered Cutaneous Diptera Endopterygota Eukaryotae Eukaryote Expose Exposed Face Facial Feed Feeding Female Fierce Fly Geographic Geography Head And Neck Histologic Histological Histology Human Injury Insect Integumentary System Invertebrate Invertebrate Stage Land Larva Larvae Larval Life Process Life Science Medical Medicine Micrograph Micrography Microscopy Nature Neoptera North America Nuisance Nymph Organ System Organism People Pest Physiological Physiology Presence Pterygota Scanning Electron Micrograph SEM Simuliidae Simulium Skin Species Sure Tissue Trauma Traumatic True Flies U S U S U S A United States Wound SEM of a black fly larval nymph Simulium sp mag 24x at 24 x 36 mm Adult females of some species bite fiercely and feed on blood Some black flies are a nuisance only by their presence around exposed skin Black flies can transmit filarial worms to humans resulting in onchocerciasis which causes blindness The flies may also transmit enchephalitis