Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Genus Hybomitra

Horse Fly - Hybomitra hinei - male BG715 C0841 - Hybomitra lasiophthalma - female Horse Fly - Hybomitra microcephala - female Fly - Hybomitra - male Hybomitra - Hybomitra lasiophthalma - female Horse Fly - Hybomitra lasiophthalma - female Horsefly - Hybomitra nuda - female fly061820-3 - Hybomitra lasiophthalma
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Infraorder Tabanomorpha
Family Tabanidae (Horse and Deer Flies)
Subfamily Tabaninae (Horse Flies)
Tribe Tabanini
Genus Hybomitra
Explanation of Names
Hybomitra Enderlein 1922
60 spp. in our area(1), ~twice as many in the Old World
10-20 mm(2)
key to 40 spp. found in e. Canada(2)
holarctic & Afrotropical(3)
Genus 5 (of 6) in the Tribe: Tabanini (which is Tribe 3 of the Subfamily: Tabaninae).
Members of the genus range from small to large (10-20 mm)and are similar to, and not immediately easy to separate from, members of the genus Tabanus. Head characters are the main method to distinguish between these two genera.
The 55 species are mostly northern, Canada and Alaska; being replaced in the remaining USA by Tabanus.
I had the honour with my colleauge Dr. Herb Teskey of naming a new species after Dr. L.L. Pechuman one of the 'greats' of Nearctic Tabanidae: Hybomitra pechumani Teskey & Thomas, 1979. (Comment by Tony Thomas)