Maximum likelihood phylogeny of the VP1 (a), T13 (VP7) (b) and T2 (c) orbivirus proteins constructed using maximum likelihood inference and 100 bootstrap replicates. Bootstrap supports ≥80% are displayed at the nodes. Letea virus (LEAV) is indicated by the red triangle. C/SBOV stands for Culicoides-/sand fly-borne orbiviruses: African Horse Sickness virus (AHSV), Bluetongue virus (BTV), Changuinola virus (CGLV), Chuzan virus (CHUV), Epizootic hemorrhagic disease virus (EHDV), Equine encephalosis virus (EEV), Eubenangee virus (EUBV), Ife virus (IFEV), Japanaut virus (JAPV), Lebombo virus (LEBV), Mudjinabarry virus (MUDV), Orungo virus (ORUV), Pata virus (PATAV), Tibet orbivirus (TIBOV), Wallal virus (WALV), Warrego virus (WARV); MBOV stands for mosquito-borne orbiviruses: Corriparta virus (CORV), Mobuck virus (MOBV), Peruvian horse sickness virus (PHSV), Sathuvachari virus (SVIV), Umatilla virus (UMAV), Yunnan orbivirus (YOUV); TBOV stands for tick-borne orbiviruses: Bukakata virus (BUKV), Chenuda virus (CNUV), Chobar Gorge virus (CGV), Fomede virus (FOMV), Great Island virus (GIV), Kemerovo virus (KEMV), Lipovnik virus (LIPV), Tribeč virus (TRBV), Wad Medani virus (WMV); St. Croix River virus (SCRV).