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Species Chlorotabanus crepuscularis

Green Horsefly - Chlortabanus crepuscularis - Chlorotabanus crepuscularis - male Horse Fly - Chlorotabanus crepuscularis Fly on Moth Sheet - Chlorotabanus crepuscularis Green fly - Chlorotabanus crepuscularis - female Green Horse Fly - Chlorotabanus crepuscularis - male Green Horsefly - Chlorotabanus crepuscularis - male Chlorotabanus crepuscularis - female Florida Fly for ID - Chlorotabanus crepuscularis
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 Diachlorini
Genus Chlorotabanus
Species crepuscularis (Chlorotabanus crepuscularis)
Explanation of Names
Chlorotabanus crepuscularis Bequaert 1926
crepuscularis = active during the crepuscular hours of dusk and dawn
about 18 mm
Body pale green, eyes and thorax yellowish green. The only green tabanid in NA.
An eastern species occurring south of a line from Delaware to southern Texas.
Larvae predaceous, usually in soil at edge of water and in floating vegetation, occasionally in forest soil.
Adults in vicinity of larval habitats
In Florida, flying from mid-March to mid-September with peak activity from May to mid-July.
Females feed on mammalian blood
As with all the blood-feeding tabanids, the females are responsive to carbon dioxide. I caught over 500 females in one night with a trap baited with dry ice in coastal South Carolina. Will also come to lights at night.
Regarded as a pest species in Florida